Isamu Takehara

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of magnetizing permanent magnet for a motor
- Patent number 7,921,547
- Issue date Apr 12, 2011
- Seiko Instruments Inc.
- Isamu Takehara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Information recording and playback apparatus and method of manufact...
- Patent number 7,796,357
- Issue date Sep 14, 2010
- Seiko Instruments Inc.
- Isamu Takehara
- G11 - INFORMATION STORAGE
Information Patent Grant
Motor and recording medium drive device
- Patent number 7,307,364
- Issue date Dec 11, 2007
- Seiko Instruments Inc.
- Isamu Takehara
- G11 - INFORMATION STORAGE
Information Patent Grant
Armature of motor, manufacturing method of the same and motor using...
- Patent number 6,598,288
- Issue date Jul 29, 2003
- Seiko Seiki Kabushiki Kaisha
- Isamu Takehara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method for lubricating a fluid dynamic pressure bearing
- Patent number 6,371,649
- Issue date Apr 16, 2002
- Seiko Instruments Inc.
- Naoki Kawawada
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Hydraulic dynamic bearing and spindle motor and rotary assembly pro...
- Patent number 6,371,650
- Issue date Apr 16, 2002
- Seiko Instruments Inc.
- Hiromitsu Goto
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydraulic dynamic bearing and spindle motor
- Patent number 6,354,742
- Issue date Mar 12, 2002
- Seiko Instruments Inc.
- Tadao Iwaki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydraulic dynamic bearing and spindle motor and rotary assembly pro...
- Patent number 6,307,291
- Issue date Oct 23, 2001
- Seiko Instruments Inc.
- Tadao Iwaki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydraulic dynamic bearing and spindle motor utilizing hydraulic dyn...
- Patent number 6,247,848
- Issue date Jun 19, 2001
- Seiko Instruments Inc.
- Tadao Iwaki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Dynamic pressure bearing, spindle motor using dynamic pressure bear...
- Patent number 6,176,618
- Issue date Jan 23, 2001
- Seiko Instruments Inc.
- Naoki Kawawada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method of manufacturing armature of motor using hoop member
- Patent number 6,163,952
- Issue date Dec 26, 2000
- Seiko Seiki Kabushiki Kaisha
- Isamu Takehara
- G01 - MEASURING TESTING
Information Patent Grant
Spindle motor and rotator device
- Patent number 6,040,648
- Issue date Mar 21, 2000
- Seiko Instruments Inc.
- Naoki Kawawada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Spindle motor
- Patent number 5,821,647
- Issue date Oct 13, 1998
- Seiko Seiki Kabushiki Kaisha
- Isamu Takehara
- G02 - OPTICS
Information Patent Grant
High speed spindle motor and apparatus equipped with high speed spi...
- Patent number 5,804,896
- Issue date Sep 8, 1998
- Seiko Seiki Kabushiki Kaisha
- Isamu Takehara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Brushless motor
- Patent number 5,394,045
- Issue date Feb 28, 1995
- Seiko Instruments Inc.
- Isamu Takehara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Direct current motor
- Patent number 5,391,954
- Issue date Feb 21, 1995
- Seiko Instruments Inc.
- Isamu Takehara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Coreless motor
- Patent number 5,374,867
- Issue date Dec 20, 1994
- Seiko Instruments Inc.
- Isamu Takehara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Corless motor
- Patent number 5,270,602
- Issue date Dec 14, 1993
- Seiko Instruments Inc.
- Isamu Takehara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
Magnetic member, motor device, magnetizing method, and storage device
- Publication number 20100259122
- Publication date Oct 14, 2010
- Isamu Takehara
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Permanent magnet for a motor, motor, and magnetizing method
- Publication number 20080111436
- Publication date May 15, 2008
- Isamu Takehara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Permanent magnet for a motor, motor, and magnetizing method
- Publication number 20080061650
- Publication date Mar 13, 2008
- Isamu Takehara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Information Recording and Playback Apparatus and Method of Manufact...
- Publication number 20070291406
- Publication date Dec 20, 2007
- Isamu Takehara
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic member, motor device, magnetizing method and storage device
- Publication number 20060255677
- Publication date Nov 16, 2006
- Isamu Takehara
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Motor and recording medium drive device
- Publication number 20060220480
- Publication date Oct 5, 2006
- Isamu Takehara
- G11 - INFORMATION STORAGE
Information Patent Application
Permanent magnet for motor, motor and magnetizing method
- Publication number 20050174004
- Publication date Aug 11, 2005
- Isamu Takehara
- H01 - BASIC ELECTRIC ELEMENTS

Isamu Takehara

Person

Patents Grantslast 30 patents

Method of magnetizing permanent magnet for a motor

Information recording and playback apparatus and method of manufact...

Motor and recording medium drive device

Armature of motor, manufacturing method of the same and motor using...

Method for lubricating a fluid dynamic pressure bearing

Hydraulic dynamic bearing and spindle motor and rotary assembly pro...

Hydraulic dynamic bearing and spindle motor

Hydraulic dynamic bearing and spindle motor and rotary assembly pro...

Hydraulic dynamic bearing and spindle motor utilizing hydraulic dyn...

Dynamic pressure bearing, spindle motor using dynamic pressure bear...

Method of manufacturing armature of motor using hoop member

Spindle motor and rotator device

Spindle motor

High speed spindle motor and apparatus equipped with high speed spi...

Brushless motor

Direct current motor

Coreless motor

Corless motor

Patents Applicationslast 30 patents

Magnetic member, motor device, magnetizing method, and storage device

Permanent magnet for a motor, motor, and magnetizing method

Permanent magnet for a motor, motor, and magnetizing method

Information Recording and Playback Apparatus and Method of Manufact...

Magnetic member, motor device, magnetizing method and storage device

Motor and recording medium drive device

Permanent magnet for motor, motor and magnetizing method