Kenji Tomida

Person

Matsuda, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Disk drive device and magnetic disk drive
- Patent number 8,125,739
- Issue date Feb 28, 2012
- Hitachi Global Storage Technologies, Netherlands B.V.
- Takao Suzuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device and head stack assembly
- Patent number 8,094,412
- Issue date Jan 10, 2012
- Hitachi Global Storage Technologies, Netherlands B.V.
- Noritaka Otake
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive and method for head servo control of the disk drive
- Patent number 8,059,356
- Issue date Nov 15, 2011
- Hitachi Global Storage Technologies, Netherlands B.V.
- Chikako Sakagami
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk drive with line contact
- Patent number 7,545,601
- Issue date Jun 9, 2009
- Hitachi Global Storage Technologies Netherlands B.V.
- Kazuyoshi Hanada
- G11 - INFORMATION STORAGE
Information Patent Grant
Servo pattern writing method and apparatus thereof
- Patent number 6,947,244
- Issue date Sep 20, 2005
- Hitachi Global Storage Technologies Japan, Ltd.
- Hiroshi Kawaguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Spindle motor and magnetic disc device using thereof having radial...
- Patent number 6,771,460
- Issue date Aug 3, 2004
- Hitachi, Ltd.
- Katsutoshi Nii
- G11 - INFORMATION STORAGE
Information Patent Grant
Information storage and retrieval device
- Patent number 6,697,218
- Issue date Feb 24, 2004
- Hitachi, Ltd.
- Takeshi Yoshida
- G11 - INFORMATION STORAGE
Information Patent Grant
Spindle motor and magnetic disc device with hydrodynamic bearings
- Patent number 6,680,814
- Issue date Jan 20, 2004
- Hitachi, Ltd.
- Katsutoshi Nii
- G11 - INFORMATION STORAGE
Information Patent Grant
Information storage and retrieval device provided with shock-absorb...
- Patent number 6,583,950
- Issue date Jun 24, 2003
- Hitachi, Ltd.
- Takeshi Yoshida
- G11 - INFORMATION STORAGE
Information Patent Grant
Spindle motor and magnetic disc device with hydrodynamic bearing
- Patent number 6,469,866
- Issue date Oct 22, 2002
- Hitachi, Ltd.
- Katsutoshi Nii
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Disc device
- Patent number 6,407,883
- Issue date Jun 18, 2002
- Hitachi, Ltd.
- Takashi Kohno
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive unit with hydrodynamic fluid bearing unit and disk devic...
- Patent number 6,369,980
- Issue date Apr 9, 2002
- Hitachi, Ltd.
- Katsutoshi Nii
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Disk drive unit with hydrodynamic fluid bearing unit and disk devic...
- Patent number 6,369,981
- Issue date Apr 9, 2002
- Hitachi, Ltd.
- Katsutoshi Nii
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Magnetic disk apparatus, including spindle motor having air flow pa...
- Patent number 6,356,408
- Issue date Mar 12, 2002
- Hitachi, Ltd.
- Katsutoshi Nii
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Information storage and retrieval device
- Patent number 6,243,228
- Issue date Jun 5, 2001
- Hitachi, Ltd.
- Takeshi Yoshida
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive unit with hydrodynamic fluid bearing unit and disk devic...
- Patent number 6,243,230
- Issue date Jun 5, 2001
- Hitachi, Ltd.
- Katsutoshi Nii
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Disc device
- Patent number 6,195,224
- Issue date Feb 27, 2001
- Hitachi, Ltd.
- Takashi Kohno
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording disk apparatus and rotational supporting structure theref...
- Patent number 5,973,878
- Issue date Oct 26, 1999
- Hitachi, Ltd.
- Takashi Yoshida
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Bearing device and spindle motor provided with the bearing device
- Patent number 5,885,005
- Issue date Mar 23, 1999
- Hitachi, Ltd.
- Masaaki Nakano
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Recording disk apparatus and rotational supporting structure theref...
- Patent number 5,659,445
- Issue date Aug 19, 1997
- Hitachi, Ltd.
- Takashi Yoshida
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
DISK DRIVE AND METHOD FOR HEAD SERVO CONTROL OF THE DISK DRIVE
- Publication number 20100142082
- Publication date Jun 10, 2010
- Chikako Sakagami
- G11 - INFORMATION STORAGE
Information Patent Application
Disk drive device and magnetic disk drive
- Publication number 20090207530
- Publication date Aug 20, 2009
- Takao Suzuki
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic disk device and head stack assembly
- Publication number 20090147406
- Publication date Jun 11, 2009
- Noritaka Otake
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic disk drive with line contact
- Publication number 20060126219
- Publication date Jun 15, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Kazuyoshi Hanada
- G11 - INFORMATION STORAGE
Information Patent Application
Information storage and retrieval device
- Publication number 20030174436
- Publication date Sep 18, 2003
- Hitachi, Ltd.
- Takeshi Yoshida
- G11 - INFORMATION STORAGE
Information Patent Application
Servo pattern writing method and apparatus thereof
- Publication number 20030142436
- Publication date Jul 31, 2003
- Hitachi, Ltd
- Hiroshi Kawaguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Spindle motor and magnetic disc device using thereof
- Publication number 20030011929
- Publication date Jan 16, 2003
- Katsutoshi Nii
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Spindle motor and magnetic disc device using thereof
- Publication number 20020196582
- Publication date Dec 26, 2002
- Katsutoshi Nii
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Magnetic disk apparatus
- Publication number 20020071204
- Publication date Jun 13, 2002
- Hitachi, Ltd.
- Katsutoshi Nii
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Information storage and retrieval device
- Publication number 20020030922
- Publication date Mar 14, 2002
- Hitachi, Ltd.
- Takeshi Yoshida
- G11 - INFORMATION STORAGE
Information Patent Application
Disk drive unit with hydrodynamic fluid bearing unit and disk devic...
- Publication number 20020018315
- Publication date Feb 14, 2002
- Katsutoshi Nii
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Disk drive unit with hydrodynamic fluid bearing unit and disk devic...
- Publication number 20010021080
- Publication date Sep 13, 2001
- Katsutoshi Nii
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Disc device
- Publication number 20010002868
- Publication date Jun 7, 2001
- Takashi Kohno
- G11 - INFORMATION STORAGE

Kenji Tomida

Person

Patents Grantslast 30 patents

Disk drive device and magnetic disk drive

Magnetic disk device and head stack assembly

Disk drive and method for head servo control of the disk drive

Magnetic disk drive with line contact

Servo pattern writing method and apparatus thereof

Spindle motor and magnetic disc device using thereof having radial...

Information storage and retrieval device

Spindle motor and magnetic disc device with hydrodynamic bearings

Information storage and retrieval device provided with shock-absorb...

Spindle motor and magnetic disc device with hydrodynamic bearing

Disc device

Disk drive unit with hydrodynamic fluid bearing unit and disk devic...

Disk drive unit with hydrodynamic fluid bearing unit and disk devic...

Magnetic disk apparatus, including spindle motor having air flow pa...

Information storage and retrieval device

Disk drive unit with hydrodynamic fluid bearing unit and disk devic...

Disc device

Recording disk apparatus and rotational supporting structure theref...

Bearing device and spindle motor provided with the bearing device

Recording disk apparatus and rotational supporting structure theref...

Patents Applicationslast 30 patents

DISK DRIVE AND METHOD FOR HEAD SERVO CONTROL OF THE DISK DRIVE

Disk drive device and magnetic disk drive

Magnetic disk device and head stack assembly

Magnetic disk drive with line contact

Information storage and retrieval device

Servo pattern writing method and apparatus thereof

Spindle motor and magnetic disc device using thereof

Spindle motor and magnetic disc device using thereof

Magnetic disk apparatus

Information storage and retrieval device

Disk drive unit with hydrodynamic fluid bearing unit and disk devic...

Disk drive unit with hydrodynamic fluid bearing unit and disk devic...

Disc device