Takafumi Asada

Person

Hirakata, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Hydrodynamic bearing device, and spindle motor equipped with same
- Patent number 8,033,732
- Issue date Oct 11, 2011
- Panasonic Corporation
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing type rotary device and recording and reproduci...
- Patent number 7,950,854
- Issue date May 31, 2011
- Panasonic Corporation
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing type rotary device
- Patent number 7,901,139
- Issue date Mar 8, 2011
- Panasonic Corporation
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing type rotary device and recording and reproduci...
- Patent number 7,883,270
- Issue date Feb 8, 2011
- Panasonic Corporation
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing rotary device and information apparatus
- Patent number 7,862,238
- Issue date Jan 4, 2011
- Panasonic Corporation
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing device and disk rotation apparatus
- Patent number 7,830,637
- Issue date Nov 9, 2010
- Panasonic Corporation
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing type rotary device and recording and reproduct...
- Patent number 7,740,407
- Issue date Jun 22, 2010
- Panasonic Corporation
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing device
- Patent number 7,726,881
- Issue date Jun 1, 2010
- Panasonic Corporation
- Tsutomu Hamada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing rotary device
- Patent number 7,674,043
- Issue date Mar 9, 2010
- Panasonic Corporation
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing device and disk rotating apparatus
- Patent number 7,589,934
- Issue date Sep 15, 2009
- Panasonic Corporation
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing type rotary device and recording and reproduct...
- Patent number 7,527,432
- Issue date May 5, 2009
- Panasonic Corporation
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing device
- Patent number 7,513,689
- Issue date Apr 7, 2009
- Panasonic Corporation
- Tsutomu Hamada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing device and disk rotating apparatus
- Patent number 7,492,548
- Issue date Feb 17, 2009
- Matsushita Electric Industrial Co., Ltd.
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing device
- Patent number 7,241,050
- Issue date Jul 10, 2007
- Matsushita Electric Industrial Co., Ltd.
- Kaoru Uenosono
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing and disc rotation apparatus using the same
- Patent number 7,237,956
- Issue date Jul 3, 2007
- Matsushita Electric Industrial Co., Ltd.
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing and disc rotation apparatus using the same
- Patent number 7,237,955
- Issue date Jul 3, 2007
- Matsushita Electric Industrial Co., Ltd.
- Takafumi Asada
- G11 - INFORMATION STORAGE
Information Patent Grant
Hydrodynamic bearing device, spindle motor and hard disk driving ap...
- Patent number 7,210,850
- Issue date May 1, 2007
- Matsushita Electric Industrial Col, Ltd.
- Keigo Kusaka
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing and disk recording/reproducing apparatus havin...
- Patent number 7,196,868
- Issue date Mar 27, 2007
- Matsushita Electric Industrial Co., Ltd.
- Takafumi Asada
- G11 - INFORMATION STORAGE
Information Patent Grant
Hydrodynamic bearing device
- Patent number 7,186,028
- Issue date Mar 6, 2007
- Matsushita Electric Industrial Co., Ltd.
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing and disk recording/reproducing apparatus
- Patent number 7,102,851
- Issue date Sep 5, 2006
- Matsushita Electric Industrial Co., Ltd.
- Takafumi Asada
- G11 - INFORMATION STORAGE
Information Patent Grant
Fluid dynamic bearing device and motor including the device
- Patent number 7,011,450
- Issue date Mar 14, 2006
- Matsushita Electric Industrial Co., Ltd.
- Keigo Kusaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Hydrodynamic gas bearing
- Patent number 6,933,642
- Issue date Aug 23, 2005
- Matsushita Electric Industrial Co., Ltd.
- Keigo Kusaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Hydrodynamic bearing and disk apparatus
- Patent number 6,760,187
- Issue date Jul 6, 2004
- Matsushita Electric Industrial Co., Ltd.
- Takafumi Asada
- G11 - INFORMATION STORAGE
Information Patent Grant
Hydro dynamic gas bearing and disk drive using the same
- Patent number 6,604,858
- Issue date Aug 12, 2003
- Matsushita Electric Industrial Co., Ltd.
- Keigo Kusaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Hydrodynamic bearing
- Patent number 6,196,722
- Issue date Mar 6, 2001
- Matsushita Electric Industrial Co., Ltd.
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Vertical hydrodynamic bearing apparatus
- Patent number 5,810,480
- Issue date Sep 22, 1998
- Matsushita Electric Industrial Co., Ltd.
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Sleeve bore machining apparatus and sleeve bore machining method
- Patent number 5,797,303
- Issue date Aug 25, 1998
- Matsushita Electric Industrial Co., Ltd.
- Takafumi Asada
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for manufacturing fluid bearing
- Patent number 5,758,421
- Issue date Jun 2, 1998
- Matsushita Electric Industrial Co., Ltd.
- Takafumi Asada
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Sleeve bore machining apparatus and sleeve bore machining method
- Patent number 5,718,155
- Issue date Feb 17, 1998
- Matsushita Electric Industrial Co., Ltd.
- Takafumi Asada
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Workpiece-bore processing apparatus and method
- Patent number 5,524,464
- Issue date Jun 11, 1996
- Matsushita Electric Industrial Co., Ltd.
- Takafumi Asada
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
SLEEVE FOR HYDRODYNAMIC BEARING DEVICE, HYDRODYNAMIC BEARING DEVICE...
- Publication number 20110044837
- Publication date Feb 24, 2011
- NIDEC CORPORATION
- Tsutomu HAMADA
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
HYDRODYNAMIC BEARING DEVICE AND DISK ROTATION APPARATUS
- Publication number 20100085661
- Publication date Apr 8, 2010
- PANASONIC CORPORATION
- Takafumi ASADA
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
HYDRODYNAMIC BEARING DEVICE, SPINDLE MOTOR, AND INFORMATION DEVICE
- Publication number 20100052447
- Publication date Mar 4, 2010
- Yosuke KADOYA
- G11 - INFORMATION STORAGE
Information Patent Application
HYDRODYNAMIC BEARING DEVICE
- Publication number 20090154851
- Publication date Jun 18, 2009
- Tsutomu Hamada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
HYDRODYNAMIC BEARING DEVICE, SPINDLE MOTOR, AND INFORMATION RECORDI...
- Publication number 20090154852
- Publication date Jun 18, 2009
- Takafumi Asada
- G11 - INFORMATION STORAGE
Information Patent Application
HYDRODYNAMIC BEARING DEVICE
- Publication number 20090155116
- Publication date Jun 18, 2009
- Tsutomu Hamada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
HYDRODYNAMIC BEARING DEVICE, AND SPINDLE MOTOR AND INFORMATION PROC...
- Publication number 20090073596
- Publication date Mar 19, 2009
- Takafumi Asada
- G11 - INFORMATION STORAGE
Information Patent Application
SLEEVE FOR HYDRODYNAMIC BEARING DEVICE, HYDRODYNAMIC BEARING DEVICE...
- Publication number 20090060403
- Publication date Mar 5, 2009
- Tsutomu Hamada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
HYDRODYNAMIC BEARING DEVICE, AND SPINDLE MOTOR EQUIPPED WITH SAME
- Publication number 20090028474
- Publication date Jan 29, 2009
- Takafumi ASADA
- G11 - INFORMATION STORAGE
Information Patent Application
HYDRODYNAMIC BEARING DEVICE, AND RECORDING AND REPRODUCING APPARATU...
- Publication number 20080304775
- Publication date Dec 11, 2008
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
HYDRODYNAMIC BEARING DEVICE AND DISK ROTATING APPARATUS
- Publication number 20080304776
- Publication date Dec 11, 2008
- Matsushita Electric Industrial Co., Ltd.
- Takafumi ASADA
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
HYDRODYNAMIC BEARING, AND HYDRODYNAMIC BEARING-TYPE ROTARY DEVICE A...
- Publication number 20080212907
- Publication date Sep 4, 2008
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Hydrodynamic bearing type rotary device and recording and reproduci...
- Publication number 20080124013
- Publication date May 29, 2008
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Hydrodynamic bearing type rotary device and recording and reproduci...
- Publication number 20080080797
- Publication date Apr 3, 2008
- Takafumi Asada
- G11 - INFORMATION STORAGE
Information Patent Application
Hydrodynamic bearing type rotary device
- Publication number 20080008408
- Publication date Jan 10, 2008
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Hydrodynamic bearing type rotary device and recording and reproduct...
- Publication number 20070253650
- Publication date Nov 1, 2007
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Hydrodynamic bearing rotary device and information apparatus
- Publication number 20070230840
- Publication date Oct 4, 2007
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Hydrodynamic bearing type rotary device
- Publication number 20070217721
- Publication date Sep 20, 2007
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Hydrodynamic bearing type rotary device and recording and reproduct...
- Publication number 20070140605
- Publication date Jun 21, 2007
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Hydrodynamic bearing device and manufacturing method thereof
- Publication number 20070092171
- Publication date Apr 26, 2007
- Takafumi Asada
- G11 - INFORMATION STORAGE
Information Patent Application
Hydrodynamic bearing type rotary device and recording and reproduct...
- Publication number 20070047859
- Publication date Mar 1, 2007
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Sleeve for hydrodynamic bearing device, hydrodynamic bearing device...
- Publication number 20070047857
- Publication date Mar 1, 2007
- Tsutomu Hamada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Hydrodynamic bearing device and disk rotating apparatus
- Publication number 20060274448
- Publication date Dec 7, 2006
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Hydrodynamic bearing device, motor and disc driving apparatus
- Publication number 20060029312
- Publication date Feb 9, 2006
- Hiroyuki Kiriyama
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Hydrodynamic bearing device
- Publication number 20060029313
- Publication date Feb 9, 2006
- Tsutomu Hamada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Hydrodynamic bearing device
- Publication number 20060023982
- Publication date Feb 2, 2006
- Matsushita Electric Industrial Co., Ltd.
- Kaoru Uenosono
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Hydrodynamic bearing device, spindle motor and hard disk driving ap...
- Publication number 20060018576
- Publication date Jan 26, 2006
- Keigo Kusaka
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Fluid dynamic bearing device
- Publication number 20060008190
- Publication date Jan 12, 2006
- MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- Tsutomu Hamada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Hydrodynamic bearing device
- Publication number 20050201645
- Publication date Sep 15, 2005
- Matsushita Elec. Ind. Co., Ltd.
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Fluid bearing device
- Publication number 20050169561
- Publication date Aug 4, 2005
- Matsushita Electric Industrial Co., Ltd.
- Takafumi Asada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Takafumi Asada

Person

Patents Grantslast 30 patents

Hydrodynamic bearing device, and spindle motor equipped with same

Hydrodynamic bearing type rotary device and recording and reproduci...

Hydrodynamic bearing type rotary device

Hydrodynamic bearing type rotary device and recording and reproduci...

Hydrodynamic bearing rotary device and information apparatus

Hydrodynamic bearing device and disk rotation apparatus

Hydrodynamic bearing type rotary device and recording and reproduct...

Hydrodynamic bearing device

Hydrodynamic bearing rotary device

Hydrodynamic bearing device and disk rotating apparatus

Hydrodynamic bearing type rotary device and recording and reproduct...

Hydrodynamic bearing device

Hydrodynamic bearing device and disk rotating apparatus

Hydrodynamic bearing device

Hydrodynamic bearing and disc rotation apparatus using the same

Hydrodynamic bearing and disc rotation apparatus using the same

Hydrodynamic bearing device, spindle motor and hard disk driving ap...

Hydrodynamic bearing and disk recording/reproducing apparatus havin...

Hydrodynamic bearing device

Hydrodynamic bearing and disk recording/reproducing apparatus

Fluid dynamic bearing device and motor including the device

Hydrodynamic gas bearing

Hydrodynamic bearing and disk apparatus

Hydro dynamic gas bearing and disk drive using the same

Hydrodynamic bearing

Vertical hydrodynamic bearing apparatus

Sleeve bore machining apparatus and sleeve bore machining method

Method for manufacturing fluid bearing

Sleeve bore machining apparatus and sleeve bore machining method

Workpiece-bore processing apparatus and method

Patents Applicationslast 30 patents

SLEEVE FOR HYDRODYNAMIC BEARING DEVICE, HYDRODYNAMIC BEARING DEVICE...

HYDRODYNAMIC BEARING DEVICE AND DISK ROTATION APPARATUS

HYDRODYNAMIC BEARING DEVICE, SPINDLE MOTOR, AND INFORMATION DEVICE

HYDRODYNAMIC BEARING DEVICE

HYDRODYNAMIC BEARING DEVICE, SPINDLE MOTOR, AND INFORMATION RECORDI...

HYDRODYNAMIC BEARING DEVICE

HYDRODYNAMIC BEARING DEVICE, AND SPINDLE MOTOR AND INFORMATION PROC...

SLEEVE FOR HYDRODYNAMIC BEARING DEVICE, HYDRODYNAMIC BEARING DEVICE...

HYDRODYNAMIC BEARING DEVICE, AND SPINDLE MOTOR EQUIPPED WITH SAME

HYDRODYNAMIC BEARING DEVICE, AND RECORDING AND REPRODUCING APPARATU...

HYDRODYNAMIC BEARING DEVICE AND DISK ROTATING APPARATUS

HYDRODYNAMIC BEARING, AND HYDRODYNAMIC BEARING-TYPE ROTARY DEVICE A...

Hydrodynamic bearing type rotary device and recording and reproduci...

Hydrodynamic bearing type rotary device and recording and reproduci...

Hydrodynamic bearing type rotary device

Hydrodynamic bearing type rotary device and recording and reproduct...

Hydrodynamic bearing rotary device and information apparatus

Hydrodynamic bearing type rotary device

Hydrodynamic bearing type rotary device and recording and reproduct...

Hydrodynamic bearing device and manufacturing method thereof

Hydrodynamic bearing type rotary device and recording and reproduct...

Sleeve for hydrodynamic bearing device, hydrodynamic bearing device...

Hydrodynamic bearing device and disk rotating apparatus

Hydrodynamic bearing device, motor and disc driving apparatus

Hydrodynamic bearing device

Hydrodynamic bearing device

Hydrodynamic bearing device, spindle motor and hard disk driving ap...

Fluid dynamic bearing device

Hydrodynamic bearing device

Fluid bearing device