Patent Application
20090303379
The present invention relates to an imaging apparatus such as a monitoring camera apparatus or a video camera apparatus, and more particularly, to an image pickup device driving apparatus for moving the image pickup device in an optical axis direction of a lens, and an imaging apparatus using the same.
To begin with, a conventional technique for an imaging apparatus will be described. Here, a monitoring camera apparatus will be described as an example of the imaging device.
In recent years, there have been proposed techniques regarding various monitoring camera apparatuses. In particular, there have been proposed techniques regarding the monitoring camera apparatuses for monitoring during the day and night in which, during the day, visible light is selectively transmitted and an infrared cut filter for absorbing an infrared ray is arranged in the front side of an image pickup device, and at night, the infrared cut filter arranged in the front side of the image pickup device is detached from the image pickup to allow an infrared ray to enter the image pickup device, thereby increasing night imaging sensitivity and hence night monitoring precision.
In the aforementioned monitoring camera apparatus, in a case where a photograph is taken with a visible ray and a case where a photograph is taken with an infrared ray, there arises a problem in that length of an optical path is varied due to wavelength deviation or the like of a light ray used for photographing depending on conditions on presence of the infrared cut filer, illumination and the like, and for example. In addition, in a case where a photograph is taken at night with an infrared ray with optimized length of an optical path at photographing with a visible ray during the day, there arises a problem in that an image obtained by the photographing becomes dim.
To solve the above problems, there has been for example proposed an imaging apparatus which is capable of manually adjusting a position of an image pickup device in an optical axis direction as necessary. An example of the method of adjusting the position of the image pickup device in the optical axis direction may include a method of adjusting a position of an image pickup device in an optical axis direction by biasing the image pickup device in one direction by means of an elastic member while keeping the image pickup device movable in the optical axis direction and pressing the image pickup device in an opposite direction by rotating a adjustment ring having a cam mechanism (for example, see Japanese Unexamined Patent Application Publication No. 2000-165733).
In addition, in recent years, there has been proposed a surveillance camera apparatus which is capable of obtaining a sharp image in focus irrespective of day or night by correcting a focus length difference due to an optical path difference at photographing with a visible ray and a ray from a region including a visible ray and an infrared ray by moving an image pickup device to a position having the highest focusing value in an optical axis direction while referring to focusing values of an image signal output from the image pickup device when an infrared cut filter is arranged on and removed from an optical path (for example, see Japanese Unexamined Patent Application Publication No. 2003-274229).
In such a surveillance camera apparatus, a lead screw is used to move the image pickup device, a nut part is provided to be rotated around the lead screw, the image pickup device is attached to a chassis whose operation is limited in the optical axis direction by a guide rod, and the lead screw is rotated by a stepping motor. With this configuration, by rotating the lead screw by rotation of the stepping motor, it is possible to move the image pickup device by a desired distance in the optical axis direction.
However, in the surveillance camera apparatus disclosed in Japanese Unexamined Patent Application Publication No. 2003-274229, the image pickup device is moved when the chassis, which includes the image pickup device and is supported by two axes, i.e., the lead screw and the guide rod, is moved in the optical axis direction. Accordingly, this apparatus has a problem in that its structure becomes large in the optical axis direction since it has to have the two axes and thereby the apparatus is reduced in the size with difficulty.
In addition, as disclosed in Japanese Unexamined Patent Application Publication No. 2000-165733, it may also be considered to rotate the adjustment ring having the cam mechanism using the motor or the like and control a driving controller to detect a position having the highest focusing value and stop the adjustment ring at the position to adjust a position of the image pickup device in the optical axis direction. Although this configuration solves the problem that the structure becomes large in the optical axis, the technique disclosed in Japanese Unexamined Patent Application Publication No. 2000-165733 is to design a biasing force of the elastic member for basing the image pickup device to the adjustment ring such that the image pickup device is not largely moved by a weak force, that is, a torque required to rotate the adjustment ring manually becomes large. In the mean time, the image pickup device has to be smoothly moved in order to successively detect focusing values while moving the image pickup device in the optical axis direction and move the image pickup device to the position having the highest focusing value. However, since the image pickup device is biased to the adjustment ring by a strong force, a high capacity motor is required to rotate the adjustment ring and it is difficult to smoothly move the image pickup device with a relatively weak driving force by a small capacity motor.
On the other hand, if a torque required to rotate the adjustment ring becomes small to smoothly move the image pickup device in the optical axis direction, the adjustment ring may be rotated when an external force such as impact is applied to the image pickup device, thereby making it difficult to hold a stop position of the image pickup device at a desired position.
It is therefore an object of the invention to provide an image pickup device driving apparatus which is capable of smoothly moving an image pickup device in an optical axis direction even by a relatively weak driving force and stopping the image pickup device at a desired position even when an external force such as impact is applied to the image pickup device, and an imaging apparatus using the same.
In order to achieve the above-mentioned object, according to an aspect of the invention, there is provided an image pickup device driving apparatus including: an image pickup device holder that holds an image pickup device, with an image pickup surface of the image pickup device directing to a predetermined direction, and is movable in a direction of optical axis; a movable unit that is provided to contact the image pickup device holder; a driving unit that moves the image pickup device held by the image pickup device holder in the direction of optical axis by driving the movable unit, with a surface direction of the image pickup surface unchanged; and a position holding power providing member that provides position holding power to hold a position of the image pickup device holder in the direction of optical axis.
With this configuration, even when the movable unit is operated with a relatively small torque for smoothly moving the image pickup device, since the image pickup device can be stopped at an accurate position in the direction of optical axis of the image pickup device, it is possible to smoothly move the image pickup device in the direction of optical axis even with a relatively weak driving force. In addition, since the position holding power providing member that provides the position holding power to hold the position of the image pickup device holder in the direction of optical axis is separately arranged, it is possible to realize an image pickup device driving apparatus which is capable of stopping the image pickup device at a desired position even when an external force such as impact is applied to the image pickup device.
Preferably, the image pickup device holder includes three projections on a surface facing the removable unit, the removable unit includes three slopes on a surface facing the image pickup device holder, the three slopes contacting the three projections of the image pickup device holder respectively, and the image pickup device is moved in the direction of optical axis as a distance in the direction of optical axis between the image pickup device holder and the movable unit is changed when the driving unit moves the movable unit.
With this configuration, since the three projections of the image pickup device holder move the image pickup device in the direction of optical axis in contact with the three slopes of the movable unit, it is possible to prevent a tilt angle from occurring.
Preferably, the driving unit is a stepping motor, and the position holding power providing member is a magnetic core position fixing member that fixes a position of a magnetic core in the stepping motor.
With this configuration, it is possible to provide a simple configuration that the stepping motor is used as the driving unit.
Preferably, the position holding power providing member is a movable unit stopper that stops operation of the movable unit mechanically.
With this configuration, it is possible to reliably stop the image pickup device at an accurate position by stopping operation of the movable unit mechanically.
Preferably, the position holding power providing member is an image pickup device holder stopper that stops movement of the image pickup device holder in the direction of optical axis.
With this configuration, it is possible to reliably stop the image pickup device at an accurate position by stopping movement of the image pickup device holder.
Preferably, the image pickup device driving apparatus further includes an elastic member that biases the image pickup device holder toward one of the direction of optical axis, and the movable unit applies a biasing force to the image pickup device holder in a direction opposite to the one of the direction of optical axis.
With this configuration, it is possible to move the image pickup device more smoothly.
Preferably, the movable unit has a shaft provided in the direction of optical axis and is axially and rotatably supported by the shaft, and the driving unit changes the distance between the movable unit and the image pickup device holder by rotating the movable unit to change positions at which the three projections contact the three slopes.
With this configuration, since the movable unit axially supported by the shaft provided in the direction of optical axis is used, it is possible to realize a compact configuration in the direction of optical axis.
Preferably, the driving unit is a rotary motor.
With this configuration, it is possible to realize a simple configuration by using the rotary motor.
Preferably, the driving unit has a worm gear that rotates the movable unit.
With this configuration, it is possible to rotate the movable unit smoothly.
Preferably, the worm gear has a two or more-line screw.
With this configuration, since the worm gear can be rotated by rotating the movable unit, it is possible to rotate the movable manually.
Preferably, the driving unit has a parallel axis saw-toothed wheel that rotates the movable unit.
With this configuration, it is possible to realize a simple configuration.
Preferably, the driving unit has a helical gear that rotates the movable unit.
With this configuration, it is possible to rotate the movable unit smoothly.
Preferably, a slip plate is interposed between the parallel axis saw-toothed wheel and the rotary motor.
With this configuration, it is possible to rotate the movable unit manually to move the image pickup device.
Preferably, the movable unit has a knob that rotates the movable unit manually.
With this configuration, it is possible to rotate the movable unit manually with ease.
Preferably, the driving unit is a direct-driven motor.
With this configuration, it is possible to raise a degree of freedom in arrangement of the driving unit.
Preferably, a driving direction changing member that changes a driving direction is interposed between the direct-driven motor and the movable unit.
With this configuration, it is possible to arrange the driving unit at a desired position by changing the driving direction.
Preferably, the movable unit is movable in a direction perpendicular to the direction of optical axis, and the driving unit changes the distance between the movable unit and the image pickup device holder by moving the movable unit in the direction perpendicular to the direction of optical axis to change positions at which the three projections contact the three slopes.
With this configuration, since the three projections of the image pickup device holder move the image pickup device in the direction of optical axis in contact with the three slopes of the movable unit, it is possible to prevent a tilt angle from occurring.
Preferably, the driving unit is a direct-driven motor.
With this configuration, it is possible to raise a degree of freedom in arrangement of the driving unit.
According to another aspect of the invention, there is provided an imaging apparatus including: a lens unit; an image pickup device; the above-described image pickup device driving apparatus, and an image signal processing unit that performs an image signal process for a signal outputted from the image pickup device.
With this configuration, even when the movable unit is operated with a relatively small torque for smoothly moving the image pickup device, since the image pickup device can be stopped at an accurate position in the direction of optical axis, it is possible to smoothly move the image pickup device in the direction of optical axis even with a relatively weak driving force. In addition, since the position holding power providing member that provides the position holding power to hold the position of the image pickup device holder in the direction of optical axis is separately arranged, it is possible to realize an imaging apparatus which is capable of stopping the image pickup device at a desired position even when an external force such as impact is applied to the image pickup device.
As described above, the invention provides an image pickup device driving apparatus which is capable of smoothly moving an image pickup device in an optical axis direction even by a relatively weak driving force and stopping the image pickup device at a desired position even when an external force such as impact is applied to the image pickup device, and an imaging apparatus using the same.
Hereinafter, preferred embodiments of the invention will be described with reference to the accompanying drawings.
To begin with, a configuration of imaging apparatus 1 according to a first embodiment of the invention will be described.
Referring to
Referring to
Now, the configuration of image pickup device driving apparatus 70 in the first embodiment of the invention will be described in more detail.
Referring to
In image pickup device driving apparatus 70 mounted on imaging apparatus 1 in the first embodiment of the invention, disc-like movable unit 3 includes three slopes 9 arranged respectively to face three projections 45 of image pickup device holder 5; circumferential saw-toothed portion 32; and shaft 41 arranged as a rotational axis at a side facing base 4. Three slopes 9 has the same shape and are arranged at equal distances from a rotation center of shaft 41 on a circumference. In addition, as shown in
In image pickup device driving apparatus 70 mounted on imaging apparatus 1 in the first embodiment of the invention, base 4 includes bearing 61 that receives shaft 41 of movable unit 3; and concave portion 31 to which driving unit 20 is attached by means of screw 903. In the first embodiment of the invention, it is preferable that movable unit 3 is attached to base 4 so that movable unit 3 can be smoothly rotated with a relatively small torque to base 4 by means of driving unit 20 having relatively small power.
In image pickup device driving apparatus 70 mounted on imaging apparatus 1 in the first embodiment of the invention, driving unit 20 includes gear 22 formed to engage with circumferential saw-toothed portion 32 of movable unit 3; and shaft 21 that axially supports gear 22. In the first embodiment of the invention, since a lockable rotary stepping motor is used as driving unit 20, driving unit 20 may have a magnetic core position fixing member (not shown), serving as a position holding power providing member to provide position holding power to hold a position of the image pickup device holder in the direction of optical axis, that can provide a so-called detent torque by stopping rotation of a magnetic core at any position.
Now, a method of mounting image pickup device driving apparatus 70 on lens mount 2 in imaging apparatus 1 in the first embodiment of the invention will be described. Referring to
Referring to
With the above configuration, as shown in
In order that image pickup device driving apparatus 70 of imaging apparatus 1 in the first embodiment of the invention moves image pickup device 15 in the direction of optical axis of lens unit 191, controller 50 instructs driving unit 20 to rotate gear 22 of driving unit 20. In
On the other hand, in image pickup device driving apparatus 70 of imaging apparatus 1 in the first embodiment of the invention, when image pickup device 15 is to move in the direction of optical axis (X axis direction), controller 50 instructs driving unit 20 to rotate gear 22 of driving unit 20 in a counterclockwise direction in
As described above, using image pickup device driving apparatus 70 and imaging apparatus 1 using the same in the first embodiment of the invention makes it possible to automatically move image pickup device 15 in the direction of optical axis through a simple configuration that driving unit 20 rotates movable unit 3, with a surface direction of image pickup surface 83 of image pickup device 15 unchanged.
If the rotation of movable unit 3 is to be stopped at a desired position, like the above, a stepping motor as driving unit 20 may be used to stop a magnetic core at a desired position, or a movable unit stopping unit such as a plunger as a separate mechanical position holding power providing member may be used to stop the rotation of movable unit 3, or image pickup device 15 may be stopped at any positions in the direction of optical axis by stopping movement of image pickup device holder 5 using an image pickup device holder stopper such as a plunger.
Next, configuration of image pickup device driving apparatus 170 and imaging apparatus 101 according to a second embodiment of the invention will be described.
Image pickup device driving apparatus 170 and imaging apparatus 101 using the same in the second embodiment of the invention use driving unit 120 to automatically move image pickup device 15 in the direction of optical axis, like image pickup device driving apparatus 70 and imaging apparatus 1 using the same in the first embodiment, while manually move image pickup device 15 in the direction of optical axis.
Image pickup device driving apparatus 170 and imaging apparatus 101 using the same in the second embodiment of the invention are different from image pickup device driving apparatus 70 and imaging apparatus 1 using the same in the first embodiment of the invention in that the former includes knob 12 having male screw 921 for manually rotating movable unit 103, projection 422 having female screw 23 which is formed at one end on the circumference of movable unit 103 and engages with male screw 921 of knob 12, and slip plate 121 as driving unit 120. Referring to
Referring to
With the above configuration, in image pickup device driving apparatus 170 and imaging apparatus 101 in the second embodiment of the invention, when a user moves knob 12, movable unit 103 is rotated, and as a result, image pickup device 15 can be manually moved in the direction of optical axis. At this time, in driving unit 120, since a space between slip plate 121 and slip receiving part 122 is slipped, it is possible to move image pickup device 15 manually in the direction of optical axis without imposing load to stepping motor 129 of driving unit 120.
On the other hand, in image pickup device driving apparatus 170 and imaging apparatus 101 in the second embodiment of the invention, image pickup device 15 can be automatically moved in the direction of optical axis. When stepping motor 129 is rotated, slip receiving part 122 fixed on shaft 127 by means of screw 123 is rotated, and according to the rotation, gear 125 of slip plate 121 is rotated by a friction force of friction material 124. Accordingly, movable unit 103 is rotated, thereby moving image pickup device 15 in the direction of optical axis.
Next, image pickup device driving apparatus 270 according to a third embodiment of the invention will be described.
Referring to
In image pickup device driving apparatus 270 according to the third embodiment of the invention, worm gear 221 is rotated when driving unit 220 is rotated, and movable unit 203 is rotated by engaging a saw-toothed wheel provided in worm gear 221 with a saw-toothed wheel provided on the circumference of movable unit 203. As a result, image pickup device 15 attached to image pickup device holder 5 can be automatically moved in the direction of optical axis.
In image pickup device driving apparatus 270 according to the third embodiment of the invention, using worm gear 221 as a means for rotating movable unit 203 makes it possible to rotate movable unit 203 more smoothly since worm gear 221 contacts saw-toothed portion 232 provided on the circumference of movable unit 203 in a wider range. In addition, biasing worm gear 221 to movable unit 203 by means of elastic member or the like makes it possible to rotate movable unit 203 more smoothly.
If the rotation of movable unit 203 is to be stopped at a desired position, like the above, a stepping motor as driving unit 220 may be used to stop a magnetic core at a desired position, or a movable unit stopping unit such as a plunger as a separate mechanical position holding power providing member may be used to stop the rotation of movable unit 203, or image pickup device 15 may be stopped at any positions in the direction of optical axis by stopping movement of image pickup device holder 5 using an image pickup device holder stopper such as a plunger.
Next, image pickup device driving apparatus 370 according to a fourth embodiment of the invention will be described.
As shown in
With this configuration, in image pickup device driving apparatus 370 of the fourth embodiment of the invention, worm gear 321 is rotated when driving unit 220 is rotated, and, since worm gear 321 is biased to movable unit 303, movable unit 303 is rotated by engaging a saw-toothed wheel provided in worm gear 321 with a saw-toothed wheel provided on the circumference of movable unit 303. As a result, image pickup device 15 attached to image pickup device holder 5 can be automatically moved in the direction of optical axis.
In addition, in image pickup device driving apparatus 370 of the fourth embodiment of the invention, since a two-line screw is provided as a saw-toothed portion 232 of worm gear 321, it is possible to rotate worm gear 321 by rotating movable unit 303. Accordingly, in image pickup device driving apparatus 370 of the fourth embodiment of the invention, since movable unit 303 can be rotated by moving knob 12 manually, it is also possible to move image pickup device 15 manually in the direction of optical axis. Although it has been illustrate in the fourth embodiment that the saw-toothed wheel of worm gear 321 is the two-line screw, the invention is not limited to this, but encompasses all saw-toothed wheels that can rotate worm gear 321 by moving movable unit 303 manually. For example, a three or more-line screw may be used to rotate worm gear 321 by rotation of movable unit 303.
As described above, image pickup device driving apparatus 370 of the fourth embodiment of the invention which employs the simple configuration that worm gear 321 is used and the three or more-line screw is used as its saw-toothed wheel makes it possible to move image pickup device 15 either automatically or manually in the direction of optical axis.
Next, image pickup device driving apparatus 470 according to a fifth embodiment of the invention will be described.
As shown in
In image pickup device driving apparatus 470 of the fifth embodiment of the invention, when shaft 408 of driving unit 420 presses pressing member 409, movable unit 403 can be rotated (in a clockwise direction in
Accordingly, in image pickup device driving apparatus 470 of the fifth embodiment of the invention, since movable unit 403 can be rotated with no need to provide a saw-toothed wheel on the circumference of movable unit 403, image pickup device 15 can be moved in the direction of optical axis.
If the rotation of movable unit 403 is to be stopped at a desired position, a stepping motor as driving unit 420 may be used to stop a magnetic core at a desired position, or a movable unit stopping unit such as a separate mechanical plunger may be used to stop the rotation of movable unit 403, or image pickup device 15 may be stopped at any positions in the direction of optical axis by stopping movement of image pickup device holder 5 using an image pickup device holder stopper such as a plunger.
Next, image pickup device driving apparatus 570 according to a sixth embodiment of the invention will be described.
As shown in
With this configuration, in image pickup device driving apparatus 570 of the sixth embodiment of the invention, driving unit 420 is driven to press pressing member 508, movable unit 503 is rotated to move image pickup device 15 automatically in the direction of optical axis. In addition, when projection 522 is manually operated to rotate manual movable unit 510, it is possible to move image pickup device 15 manually in the direction of optical axis.
Next, image pickup device driving apparatus 670 according to a seventh embodiment of the invention will be described.
As shown in
Bearing 605 of shaft 607 of driving direction changing member 606 is provided at projection 689 provided at one end of movable unit 603. Since a position at which shaft 607 contacts bearing 605 is moved in a Z axis direction when a leading end of shaft 607 is moved in the Y axis direction, bearing 605 is set as a hole extending in the Z axis direction.
As described above, in image pickup device driving apparatus 670 of the seventh embodiment of the invention, when driving unit 620 is driven, image pickup device 15 can be automatically moved in the direction of optical axis. In addition, in image pickup device driving apparatus 670 of the seventh embodiment of the invention, since the direction of the biasing force given by shaft 621 of driving unit 620 is changed by driving direction changing member 606 and then applied to movable unit 603, it is possible to raise a degree of freedom in arrangement of driving unit 620. For example, in the example shown in
If the rotation of movable unit 603 is to be stopped at a desired position, a stepping motor as driving unit 620 may be used to stop a magnetic core at a desired position, or a movable unit stopping unit such as a separate mechanical plunger may be used to stop the rotation of movable unit 603, or image pickup device 15 may be stopped at any positions in the direction of optical axis by stopping movement of image pickup device holder 5 using an image pickup device holder stopper such as a plunger.
Next, image pickup device driving apparatus 770 according to an eighth embodiment of the invention will be described.
As shown in
With this configuration, in image pickup device driving apparatus 7700 of the eighth embodiment of the invention, driving unit 620 is driven to rotate movable unit 703 to move image pickup device 15 automatically in the direction of optical axis. In addition, when projection 722 is manually operated to rotate manual movable unit 710, it is possible to move image pickup device 15 manually in the direction of optical axis.
Next, image pickup device driving apparatus 870 and imaging apparatus 801 according to a ninth embodiment of the invention will be described.
In image pickup device driving apparatus 870 and imaging apparatus 801 using the same according to the ninth embodiment of the invention, a direct-driven motor is used as driving unit 820 is used, and driving unit 820 is attached to a side opposite to a side at which image pickup device 15 of base 804 is arranged. Movable unit 803 is arranged at a side at which image pickup device holder 5 of base 804 is arranged, and is movably arranged in a predetermined direction (Y axis direction in
In the ninth embodiment of the invention, movable unit 803 remains biased toward a predetermined direction (−Y axis direction in
In this manner, in image pickup device driving apparatus 870 and imaging apparatus 801 according to the ninth embodiment of the invention, when driving unit 820 is driven, it is possible to move image pickup device 15 automatically in the direction of optical axis.
As shown in
It is possible to construct a monitoring camera apparatus using image pickup device driving apparatuses and the imaging apparatuses using the same in the above-described embodiments of the invention.
In detail, the image pickup device driving apparatus is applied to a monitoring camera apparatus that takes a photograph of a color image in a visible light region in bright surroundings by arranging an infrared cut filter on an optical axis, while taking a photograph of a monochrome image using a light ray having a wavelength including an infrared ray region in dark surroundings by removing the infrared cut filter arranged on the optical axis. In such a monitoring camera apparatus, since the infrared cut filter is arranged on the optical axis or removed therefrom depending on change of illumination and wavelengths of light used for photographing are different, an optical path is changed, and accordingly, an optimal focusing position between a lens and an image pickup surface on which a photoelectric converting element is arranged in an image pickup device is changed. When a controller drives a driving unit in arrangement or removal of the infrared cut filter using the image pickup device driving apparatuses of the embodiments, it is possible to automatically set the image pickup device to be in a position having the highest focusing value in the direction of optical axis, thereby obtaining a focused sharp image irrespective of ambient brightness.
Although it has been illustrated in the above embodiments of the invention that three projections are provided in the image pickup device holder holding the image pickup device and there slopes corresponding to the three projections are provided in the movable unit, the image pickup device driving apparatus and the imaging apparatus of the invention are not limited to this configuration. For example, three slopes may be arranged at the image pickup device holder and three projections may be provided in the movable unit.
Although it has been illustrated in the above embodiments of the invention that the image pickup device holder holding the image pickup device is provided at the side of lens unit and the movable unit is arranged at the side opposite to the side of lens unit, in the image pickup device holder, the image pickup device driving apparatus and the imaging apparatus of the invention are not limited to this configuration. For example, the movable unit may be arranged at the side of lens unit and the image pickup device holder may be arranged at the side of lens unit and the side opposite to the movable unit. In this case, it is required to prepare a hole through which a light ray passes, at the vicinity of the center of the movable unit.
The image pickup device driving apparatus and the imaging apparatus of the invention are not limited in use to monitoring camera apparatuses, but, for example, may be applied to all imaging apparatuses known in the art, such as a video camera, a digital camera and so on.
As apparent from the above description, the image pickup device driving apparatus and the imaging apparatus of the invention have an advantage in that an image pickup device can be smoothly moved in an optical axis direction even by a relatively weak driving force, and the image pickup device can be stopped at a desired position even when an external force such as impact is applied to the image pick device. The image pickup device driving apparatus and the imaging apparatus of the invention are useful for imaging apparatuses such as monitoring camera apparatuses, video camera apparatuses and so on, in particular, in moving an image pickup device in an optical axis direction of a lens unit.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2005-184308 | Jun 2005 | JP | national |
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/JP2006/311987 | 6/15/2006 | WO | 00 | 11/29/2007 |
