Mutsuro Ohta

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Base for protecting external welds of hermetically sealed electroni...
- Patent number 9,747,956
- Issue date Aug 29, 2017
- Western Digital Technologies, Inc.
- Jiro Kaneko
- G11 - INFORMATION STORAGE
Information Patent Grant
Sealed bulkhead electrical feed-through X-Y positioning control
- Patent number 9,672,870
- Issue date Jun 6, 2017
- Western Digital Technologies, Inc.
- Naoshi Mizumoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head drive device with micro-actuators of end arms rotatin...
- Patent number 8,699,166
- Issue date Apr 15, 2014
- HGST Netherlands B.V.
- Kenji Suzuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Flexible-printed-circuit voice-coil assembly configured for integra...
- Patent number 8,514,523
- Issue date Aug 20, 2013
- HGST Netherlands B.V.
- Kenji Suzuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Actuator latching mechanism for magnetic disk drive
- Patent number 8,467,152
- Issue date Jun 18, 2013
- HGST Netherlands B.V.
- Takeshi Chawanya
- G11 - INFORMATION STORAGE
Information Patent Grant
Voice-coil motor with voice coils configured oriented in the same d...
- Patent number 8,305,714
- Issue date Nov 6, 2012
- Hitachi Global Storage Technologies, Netherlands B.V.
- Kenji Suzuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Actuator mechanism for magnetic disk drive
- Patent number 8,289,657
- Issue date Oct 16, 2012
- Hitachi Global Storage Technologies, Netherlands B.V.
- Mutsuro Ohta
- G11 - INFORMATION STORAGE
Information Patent Grant
Head gimbal assembly with recessed portion and manufacturing method...
- Patent number 8,009,390
- Issue date Aug 30, 2011
- Hitachi Global Storage Technologies Netherlands B.V.
- Takaaki Deguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device and disk drive
- Patent number 7,830,639
- Issue date Nov 9, 2010
- Hitachi Global Storage Technologies Netherlands B.V.
- Takaaki Deguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device
- Patent number 7,787,218
- Issue date Aug 31, 2010
- Hitachi Global Storage Technologies Netherlands B.V.
- Takaaki Deguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device with load/unload tab inclined towards a disk
- Patent number 7,609,483
- Issue date Oct 27, 2009
- Hitachi Global Storage Technologies Netherlands B.V.
- Takaaki Deguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device and magnetic disk drive in hermetically sealed...
- Patent number 7,570,455
- Issue date Aug 4, 2009
- Hitachi Global Storage Technologies Netherlands B.V.
- Takaaki Deguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Rotating disk storage device with mounting structure and enhanced f...
- Patent number 7,564,645
- Issue date Jul 21, 2009
- Hitachi Global Storage Technologies Netherlands B.V.
- Shingo Tsuda
- G11 - INFORMATION STORAGE
Information Patent Grant
Head suspension with bridge portion separating apertures near lift tab
- Patent number 7,450,347
- Issue date Nov 11, 2008
- Hitachi Global Storage Technologies Netherlands B.V.
- Kohichi Suzuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Using eddy-currents for releasing actuator suspension assembly of r...
- Patent number 7,203,034
- Issue date Apr 10, 2007
- Hitachi Global Storage Technologies Netherlands, B.V.
- Mutsuro Ohta
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device with mechanism to control rotation of spindle m...
- Patent number 7,030,527
- Issue date Apr 18, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Shingo Tsuda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
System and method of constraining vibration in a disk drive unit an...
- Patent number 6,952,323
- Issue date Oct 4, 2005
- International Business Machines Corporation
- Yoshihiro Hirasaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk device and data-erasing method
- Patent number 6,900,956
- Issue date May 31, 2005
- Hitachi Global Storage Technologies Netherlands B.V.
- Hiroki Kitahori
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive apparatus including a load/unload ramp with different an...
- Patent number 6,639,758
- Issue date Oct 28, 2003
- Hitachi Global Storage Technologies Netherlands B.V.
- Mutsuro Ohta
- G11 - INFORMATION STORAGE
Information Patent Grant
Hard disk drive
- Patent number 6,636,380
- Issue date Oct 21, 2003
- International Business Machines Corporation
- Dale C. Goeke
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive apparatus, hard disk drive, and enclosure for hard disk...
- Patent number 6,633,452
- Issue date Oct 14, 2003
- International Business Machines Corporation
- Yoshihiro Hirasaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Head assembly, disk drive apparatus, hard disk drive and method for...
- Patent number 6,532,137
- Issue date Mar 11, 2003
- International Business Machines Corporation
- Fu-Ying Huang
- G11 - INFORMATION STORAGE
Information Patent Grant
Inertial latch for an actuator in a disk drive device
- Patent number 6,507,461
- Issue date Jan 14, 2003
- International Business Machines Corporation
- Shinichi Kimura
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for guiding and locking a rotary actuator
- Patent number 6,137,658
- Issue date Oct 24, 2000
- International Business Machines Corporation
- Shinichi Matsuzaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Actuator arm assembly and wiring aparatus used in a disk storage sy...
- Patent number 6,034,843
- Issue date Mar 7, 2000
- International Business Machines Corporation
- Hitoshi Tsujino
- G11 - INFORMATION STORAGE
Information Patent Grant
Structure in a disk drive system for attaching a load beam to a hea...
- Patent number 5,896,245
- Issue date Apr 20, 1999
- International Business Machines Corporation
- Akihiko Aoyagi
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive with impulse torque generating element
- Patent number 5,818,657
- Issue date Oct 6, 1998
- International Buisness Machines Corporation
- Sri Muthuthamby Sri-Jayantha
- G11 - INFORMATION STORAGE
Information Patent Grant
Transducer suspension system having bosses with different inner dia...
- Patent number 5,796,555
- Issue date Aug 18, 1998
- International Business Machines Corporation
- Akihiko Aoyagi
- G11 - INFORMATION STORAGE
Information Patent Grant
Bearing structure
- Patent number 5,628,571
- Issue date May 13, 1997
- International Business Machines Corporation
- Mutsuro Ohta
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
BASE FOR PROTECTING EXTERNAL WELDS OF HERMETICALLY SEALED ELECTRONI...
- Publication number 20170248993
- Publication date Aug 31, 2017
- HGST NETHERLANDS B.V.
- Jiro Kaneko
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
HARD DISK DRIVE SPINDLE MOTOR CUP
- Publication number 20150015995
- Publication date Jan 15, 2015
- HGST NETHERLANDS B.V.
- Kimihiko Sudo
- G11 - INFORMATION STORAGE
Information Patent Application
FLEXIBLE-PRINTED-CIRCUIT VOICE-COIL ASSEMBLY CONFIGURED FOR INTEGRA...
- Publication number 20130027814
- Publication date Jan 31, 2013
- Kenji Suzuki
- G11 - INFORMATION STORAGE
Information Patent Application
VOICE-COIL MOTOR WITH VOICE COILS CONFIGURED TO REDUCE HEAD VIBRATI...
- Publication number 20120162827
- Publication date Jun 28, 2012
- Kenji Suzuki
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic Head Drive Device
- Publication number 20110141614
- Publication date Jun 16, 2011
- Kenji Suzuki
- G11 - INFORMATION STORAGE
Information Patent Application
Actuator mechanism for magnetic disk drive
- Publication number 20090086377
- Publication date Apr 2, 2009
- Mutsuro Ohta
- G11 - INFORMATION STORAGE
Information Patent Application
Actuator latching mechanism for magnetic disk drive
- Publication number 20090086376
- Publication date Apr 2, 2009
- Takeshi Chawanya
- G11 - INFORMATION STORAGE
Information Patent Application
Head gimbal assembly and manufacturing method thereof
- Publication number 20070297093
- Publication date Dec 27, 2007
- Hitachi Global Storage Technologies Netherlands B.V.
- Takaaki Deguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Data storage device and disk drive
- Publication number 20070206330
- Publication date Sep 6, 2007
- Hitachi Global Storage Technologies Netherlands B.V.
- Takaaki Deguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Data storage device
- Publication number 20070206331
- Publication date Sep 6, 2007
- Hitachi Global Storage Technologies Netherlands B.V.
- Takaaki Deguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Data storage device with load/unload type disk drive
- Publication number 20070076323
- Publication date Apr 5, 2007
- HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLAND B.V .
- Takaaki Deguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Rotating disk storage device with actuator lock mechanism
- Publication number 20050264941
- Publication date Dec 1, 2005
- Hitachi Global Storage Technologies Netherlands B.V.
- Shingo Tsuda
- G11 - INFORMATION STORAGE
Information Patent Application
Data storage device and magnetic disk drive in hermetically sealed...
- Publication number 20050265113
- Publication date Dec 1, 2005
- Hitachi Global Storage Technologies Netherlands B.V.
- Kanako Abe
- G11 - INFORMATION STORAGE
Information Patent Application
Data storage device and suspension
- Publication number 20050219757
- Publication date Oct 6, 2005
- Hitachi Global Storage Technologies Netherlands B.V.
- Kohichi Suzuki
- G11 - INFORMATION STORAGE
Information Patent Application
Rotating disk storage device with mounting structure
- Publication number 20050180045
- Publication date Aug 18, 2005
- Hitachi Global Storage Technologies Netherlands, B.V.
- Shingo Tsuda
- G11 - INFORMATION STORAGE
Information Patent Application
Data storage device with mechanism to control rotation of spindle m...
- Publication number 20050140220
- Publication date Jun 30, 2005
- Hitachi Global Storage Technologies Netherlands, B.V.
- Shingo Tsuda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Rotary disk storage device and method for releasing actuator suspen...
- Publication number 20050117258
- Publication date Jun 2, 2005
- Hitachi Global Storage Technologies Netherlands, B.V.
- Mutsuro Ohta
- G11 - INFORMATION STORAGE
Information Patent Application
Rotational vibration velocity-based sensor for disk drives
- Publication number 20030218819
- Publication date Nov 27, 2003
- International Business Machines Corporation
- Sri M. Sri-Jayantha
- G11 - INFORMATION STORAGE
Information Patent Application
System and method of constraining vibration in a disk drive unit an...
- Publication number 20030128461
- Publication date Jul 10, 2003
- International Business Machines Corporation
- Yoshihiro Hirasaka
- G11 - INFORMATION STORAGE
Information Patent Application
Disk drive apparatus for reducing disk flutter
- Publication number 20020105754
- Publication date Aug 8, 2002
- Dale C. Goeke
- G11 - INFORMATION STORAGE
Information Patent Application
Head assembly, disk drive apparatus, hard disk drive and method for...
- Publication number 20020063999
- Publication date May 30, 2002
- International Business Machines Corporation
- Fu-Ying Huang
- G11 - INFORMATION STORAGE
Information Patent Application
Disk drive apparatus, hard disk drive, and enclosure for hard disk...
- Publication number 20020044375
- Publication date Apr 18, 2002
- International Business Machines Corporation
- Yoshihiro Hirasaka
- G11 - INFORMATION STORAGE
Information Patent Application
Disk device and data-erasing method
- Publication number 20020021521
- Publication date Feb 21, 2002
- International Business Machines Corporation
- Hiroki Kitahori
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Disk drive apparatus and manufacturing method
- Publication number 20010015875
- Publication date Aug 23, 2001
- International Business Machines Corporation
- Mutsuro Ohta
- G11 - INFORMATION STORAGE

Mutsuro Ohta

Person

Patents Grantslast 30 patents

Base for protecting external welds of hermetically sealed electroni...

Sealed bulkhead electrical feed-through X-Y positioning control

Magnetic head drive device with micro-actuators of end arms rotatin...

Flexible-printed-circuit voice-coil assembly configured for integra...

Actuator latching mechanism for magnetic disk drive

Voice-coil motor with voice coils configured oriented in the same d...

Actuator mechanism for magnetic disk drive

Head gimbal assembly with recessed portion and manufacturing method...

Data storage device and disk drive

Data storage device

Data storage device with load/unload tab inclined towards a disk

Data storage device and magnetic disk drive in hermetically sealed...

Rotating disk storage device with mounting structure and enhanced f...

Head suspension with bridge portion separating apertures near lift tab

Using eddy-currents for releasing actuator suspension assembly of r...

Data storage device with mechanism to control rotation of spindle m...

System and method of constraining vibration in a disk drive unit an...

Disk device and data-erasing method

Disk drive apparatus including a load/unload ramp with different an...

Hard disk drive

Disk drive apparatus, hard disk drive, and enclosure for hard disk...

Head assembly, disk drive apparatus, hard disk drive and method for...

Inertial latch for an actuator in a disk drive device

Apparatus for guiding and locking a rotary actuator

Actuator arm assembly and wiring aparatus used in a disk storage sy...

Structure in a disk drive system for attaching a load beam to a hea...

Disk drive with impulse torque generating element

Transducer suspension system having bosses with different inner dia...

Bearing structure

Patents Applicationslast 30 patents

BASE FOR PROTECTING EXTERNAL WELDS OF HERMETICALLY SEALED ELECTRONI...

HARD DISK DRIVE SPINDLE MOTOR CUP

FLEXIBLE-PRINTED-CIRCUIT VOICE-COIL ASSEMBLY CONFIGURED FOR INTEGRA...

VOICE-COIL MOTOR WITH VOICE COILS CONFIGURED TO REDUCE HEAD VIBRATI...

Magnetic Head Drive Device

Actuator mechanism for magnetic disk drive

Actuator latching mechanism for magnetic disk drive

Head gimbal assembly and manufacturing method thereof

Data storage device and disk drive

Data storage device

Data storage device with load/unload type disk drive

Rotating disk storage device with actuator lock mechanism

Data storage device and magnetic disk drive in hermetically sealed...

Data storage device and suspension

Rotating disk storage device with mounting structure

Data storage device with mechanism to control rotation of spindle m...

Rotary disk storage device and method for releasing actuator suspen...

Rotational vibration velocity-based sensor for disk drives

System and method of constraining vibration in a disk drive unit an...

Disk drive apparatus for reducing disk flutter

Head assembly, disk drive apparatus, hard disk drive and method for...

Disk drive apparatus, hard disk drive, and enclosure for hard disk...

Disk device and data-erasing method

Disk drive apparatus and manufacturing method