Takao Yoshitsugu

Person

Tottori, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Hydrodynamic bearing device, and spindle motor and information appa...
- Patent number 8,013,487
- Issue date Sep 6, 2011
- Panasonic Corporation
- Koji Hirata
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing device, spindle motor, and recording and repro...
- Patent number 7,940,492
- Issue date May 10, 2011
- Panasonic Corporation
- Koji Hirata
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Spindle motor, and recording and reproducing apparatus equipped wit...
- Patent number 7,898,129
- Issue date Mar 1, 2011
- Panasonic Corporation
- Yoichi Oki
- G11 - INFORMATION STORAGE
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 device and spindle motor having the bearing de...
- Patent number 7,622,837
- Issue date Nov 24, 2009
- Panasonic Corporation
- Hiroaki Saito
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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
Spindle motor, and recording and reproducing apparatus equipped wit...
- Patent number 7,535,134
- Issue date May 19, 2009
- Panasonic Corporation
- Yoichi Oki
- G11 - INFORMATION STORAGE
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, motor, and disk driving apparatus
- Patent number 7,473,034
- Issue date Jan 6, 2009
- Panasonic Corporation
- Hiroaki Saito
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Spindle motor
- Patent number 7,420,309
- Issue date Sep 2, 2008
- Matsushita Electric Industrial Co., Ltd.
- Akihiko Wakitani
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Spindle motor
- Patent number 7,321,178
- Issue date Jan 22, 2008
- Matsushita Electric Industrial Co., Ltd.
- Akihiko Wakitani
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Spindle motor
- Patent number 6,787,954
- Issue date Sep 7, 2004
- Matsushita Electric Industrial Co., Ltd.
- Takao Yoshitsugu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Spindle motor and method for assembling the same
- Patent number 6,717,310
- Issue date Apr 6, 2004
- Matsushita Electric Industrial Co., Ltd.
- Shoichi Yoshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Fluid bearing equipment
- Patent number 6,467,963
- Issue date Oct 22, 2002
- Matsushita Electric Industrial Co., Ltd.
- Katsunori Sakuragi
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing and motor having the same
- Patent number 6,364,532
- Issue date Apr 2, 2002
- Matsushita Electric Industrial Co., Ltd.
- Shoichi Yoshikawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing device
- Patent number 6,357,916
- Issue date Mar 19, 2002
- Matsushita Electric Industrial Co., Ltd.
- Yasuo Saeki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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
Motor and hard disk drive having a reduced vibration motor
- Patent number 6,188,152
- Issue date Feb 13, 2001
- Matsushita Electric Industrial Co., Ltd.
- Akihiko Wakitani
- G11 - INFORMATION STORAGE
Information Patent Grant
Dynamic pressure type fluid bearing device
- Patent number 5,906,440
- Issue date May 25, 1999
- Matsushita Electric Industrial Co., Ltd.
- Takao Yoshitsugu
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Rotating polygon mirror driving apparatus
- Patent number 5,708,520
- Issue date Jan 13, 1998
- Matsushita Electric Industrial Co., Ltd.
- Takao Yoshitsugu
- G02 - OPTICS
Information Patent Grant
Rotating polygon mirror driving apparatus
- Patent number 5,555,124
- Issue date Sep 10, 1996
- Matsushita Electric Industrial Co., Ltd.
- Takao Yoshitsugu
- G02 - OPTICS

Patents Applicationslast 30 patents

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, AND SPINDLE MOTOR AND INFORMATION APPA...
- Publication number 20100079022
- Publication date Apr 1, 2010
- Koji HIRATA
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
SPINDLE MOTOR, AND RECORDING AND REPRODUCING APPARATUS EQUIPPED WIT...
- Publication number 20090261680
- Publication date Oct 22, 2009
- Yoichi Oki
- G11 - INFORMATION STORAGE
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
Spindle motor
- Publication number 20080129139
- Publication date Jun 5, 2008
- Akihiko Wakitani
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
HYDRODYNAMIC BEARING DEVICE, SPINDLE MOTOR, AND RECORDING AND REPRO...
- Publication number 20080112306
- Publication date May 15, 2008
- Koji HIRATA
- G11 - INFORMATION STORAGE
Information Patent Application
Spindle motor, and recording and reproducing apparatus equipped wit...
- Publication number 20070090716
- Publication date Apr 26, 2007
- Yoichi Oki
- G11 - INFORMATION STORAGE
Information Patent Application
Hydrodynamic bearing device, motor, and disk driving apparatus
- Publication number 20070024136
- Publication date Feb 1, 2007
- Hiroaki Saito
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Spindle motor
- Publication number 20070013255
- Publication date Jan 18, 2007
- Akihiko Wakitani
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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 and spindle motor having the bearing de...
- Publication number 20060255675
- Publication date Nov 16, 2006
- Matsushita Electric Industrial Co., Ltd.
- Hiroaki Saito
- 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
Spindle motor and method of assembling the same
- Publication number 20020185925
- Publication date Dec 12, 2002
- Shoichi Yoshikawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Spindle motor
- Publication number 20020175577
- Publication date Nov 28, 2002
- Takao Yoshitsugu
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
HYDRODYNAMIC BEARING DEVICE
- Publication number 20010046336
- Publication date Nov 29, 2001
- MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- YASUO SAEKI
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
FLUID BEARING EQUIPMENT
- Publication number 20010014188
- Publication date Aug 16, 2001
- MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- KATSUNORI SAKURAGI
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Takao Yoshitsugu

Person

Patents Grantslast 30 patents

Hydrodynamic bearing device, and spindle motor and information appa...

Hydrodynamic bearing device, spindle motor, and recording and repro...

Spindle motor, and recording and reproducing apparatus equipped wit...

Hydrodynamic bearing device and disk rotation apparatus

Hydrodynamic bearing device and spindle motor having the bearing de...

Hydrodynamic bearing device and disk rotating apparatus

Spindle motor, and recording and reproducing apparatus equipped wit...

Hydrodynamic bearing device and disk rotating apparatus

Hydrodynamic bearing device, motor, and disk driving apparatus

Spindle motor

Spindle motor

Spindle motor

Spindle motor and method for assembling the same

Fluid bearing equipment

Hydrodynamic bearing and motor having the same

Hydrodynamic bearing device

Hydrodynamic bearing

Motor and hard disk drive having a reduced vibration motor

Dynamic pressure type fluid bearing device

Rotating polygon mirror driving apparatus

Rotating polygon mirror driving apparatus

Patents Applicationslast 30 patents

HYDRODYNAMIC BEARING DEVICE AND DISK ROTATION APPARATUS

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

SPINDLE MOTOR, AND RECORDING AND REPRODUCING APPARATUS EQUIPPED WIT...

HYDRODYNAMIC BEARING DEVICE AND DISK ROTATING APPARATUS

Spindle motor

HYDRODYNAMIC BEARING DEVICE, SPINDLE MOTOR, AND RECORDING AND REPRO...

Spindle motor, and recording and reproducing apparatus equipped wit...

Hydrodynamic bearing device, motor, and disk driving apparatus

Spindle motor

Hydrodynamic bearing device and disk rotating apparatus

Hydrodynamic bearing device and spindle motor having the bearing de...

Hydrodynamic bearing device, motor and disc driving apparatus

Spindle motor and method of assembling the same

Spindle motor

HYDRODYNAMIC BEARING DEVICE

FLUID BEARING EQUIPMENT