Kenji Ogasawara

Person

Machida, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Disk device for serial communication and method of controlling the...
- Patent number 7,613,525
- Issue date Nov 3, 2009
- Hitachi Global Storage Technologies Netherlands B.V.
- Kenji Ogasawara
- G11 - INFORMATION STORAGE
Information Patent Grant
Systems and methods for hard disk drive optimization and manufacturing
- Patent number 7,457,065
- Issue date Nov 25, 2008
- Hitachi Global Storage Technologies Netherlands B.V.
- Kenji Ogasawara
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for inspecting track pitch in a magnetic disk
- Patent number 7,242,551
- Issue date Jul 10, 2007
- Hitachi Global Storage Technologies Netherlands B.V.
- Shuhsuke Kurihara
- G11 - INFORMATION STORAGE
Information Patent Grant
Servo information write method, data storage device, and programs
- Patent number 7,133,237
- Issue date Nov 7, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Masaomi Ikeda
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device, recording medium, servo writing method, and da...
- Patent number 7,054,090
- Issue date May 30, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Masaomi Ikeda
- G11 - INFORMATION STORAGE
Information Patent Grant
Servo information write method, servo control method, data storage...
- Patent number 7,019,933
- Issue date Mar 28, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Kaoru Iseri
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive apparatus, head position control method, and hard disk d...
- Patent number 6,891,692
- Issue date May 10, 2005
- Hitachi Global Storage Technologies Netherlands B.V.
- Nobuyuki Kitazaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for controlling servo information detection timing and rotat...
- Patent number 6,515,813
- Issue date Feb 4, 2003
- International Business Machines Corporation
- Nobuyuki Kitazaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Data recording disk and disk drive device for reducing wasted space...
- Patent number 6,466,387
- Issue date Oct 15, 2002
- International Business Machines Corporation
- Kenji Ogasawara
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive with actuator load/unload controller
- Patent number 6,236,527
- Issue date May 22, 2001
- International Business Machines Corporation
- Hiroshi Uchiike
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive loading/unloading apparatus and method for controlling t...
- Patent number 6,229,663
- Issue date May 8, 2001
- International Business Machines Corporation
- Isao Yoneda
- G11 - INFORMATION STORAGE
Information Patent Grant
Head mechanism control apparatus, disk drive, and head unload contr...
- Patent number 6,108,157
- Issue date Aug 22, 2000
- International Business Machines Corporation
- Isao Yoneda
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetoresistive head and hard drive system having offsets from cen...
- Patent number 6,091,566
- Issue date Jul 18, 2000
- International Business Machines Corporation
- Takao Matsui
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium magnetic head positioning method, and mag...
- Patent number 5,905,603
- Issue date May 18, 1999
- International Business Machines Corporation
- Kenji Ogasawara
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording medium having improved servo compensation and method for...
- Patent number 5,815,332
- Issue date Sep 29, 1998
- International Business Machines Coporation
- Hiroaki Suzuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for indicating start of servo information on a...
- Patent number 5,812,338
- Issue date Sep 22, 1998
- International Business Machines Corporation
- Kenji Ogasawara
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive apparatus and read error recovery method in a disk drive...
- Patent number 5,754,355
- Issue date May 19, 1998
- International Business Machines Corporation
- Takashi Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive apparatus and read error recovery method in a disk drive...
- Patent number 5,696,643
- Issue date Dec 9, 1997
- International Business Machines Corporation
- Kazushi Tsuwako
- G11 - INFORMATION STORAGE
Information Patent Grant
Servo method and device for controlling head position for a hard di...
- Patent number 5,687,038
- Issue date Nov 11, 1997
- International Business Machines Corporation
- Takashi Sugawara
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording disk and drive system using no sector ID to i...
- Patent number 5,561,566
- Issue date Oct 1, 1996
- International Business Machines Corporation
- Yuji Kigami
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetostrictive head with d.c. bias magnetic field
- Patent number 5,117,320
- Issue date May 26, 1992
- International Business Machines Corporation
- Kenji Ogasawara
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Disk device for serial communication and method of controlling the...
- Publication number 20060080483
- Publication date Apr 13, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Kenji Ogasawara
- G11 - INFORMATION STORAGE
Information Patent Application
Method for inspecting track pitch in a magnetic disk
- Publication number 20060023344
- Publication date Feb 2, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Shuhsuke Kurihara
- G11 - INFORMATION STORAGE
Information Patent Application
Servo information write method, data storage device, and programs
- Publication number 20040201914
- Publication date Oct 14, 2004
- Hitachi Global Storage Technologies
- Masaomi Ikeda
- G11 - INFORMATION STORAGE
Information Patent Application
Systems and methods for hard disk drive optimization and manufacturing
- Publication number 20040179285
- Publication date Sep 16, 2004
- Hitachi Global Storage Technologies Netherlands, B.V.
- Kenji Ogasawara
- G11 - INFORMATION STORAGE
Information Patent Application
Servo information write method, servo control method, data storage...
- Publication number 20040125491
- Publication date Jul 1, 2004
- Hitachi Global Storage Technologies
- Kaoru Iseri
- G11 - INFORMATION STORAGE
Information Patent Application
Data storage device, recording medium, servo writing method, and da...
- Publication number 20040095671
- Publication date May 20, 2004
- Hitachi Global Storage Technologies
- Masaomi Ikeda
- G11 - INFORMATION STORAGE
Information Patent Application
Disk drive apparatus, head position control method, and hard disk d...
- Publication number 20020118484
- Publication date Aug 29, 2002
- International Business Machines Corporation
- Nobuyuki Kitazaki
- G11 - INFORMATION STORAGE
Information Patent Application
Method for controlling servo information detection timing, method f...
- Publication number 20010021075
- Publication date Sep 13, 2001
- Nobuyuki Kitazaki
- G11 - INFORMATION STORAGE

Kenji Ogasawara

Person

Patents Grantslast 30 patents

Disk device for serial communication and method of controlling the...

Systems and methods for hard disk drive optimization and manufacturing

Method for inspecting track pitch in a magnetic disk

Servo information write method, data storage device, and programs

Data storage device, recording medium, servo writing method, and da...

Servo information write method, servo control method, data storage...

Disk drive apparatus, head position control method, and hard disk d...

Method for controlling servo information detection timing and rotat...

Data recording disk and disk drive device for reducing wasted space...

Disk drive with actuator load/unload controller

Disk drive loading/unloading apparatus and method for controlling t...

Head mechanism control apparatus, disk drive, and head unload contr...

Magnetoresistive head and hard drive system having offsets from cen...

Magnetic recording medium magnetic head positioning method, and mag...

Recording medium having improved servo compensation and method for...

Method and apparatus for indicating start of servo information on a...

Disk drive apparatus and read error recovery method in a disk drive...

Disk drive apparatus and read error recovery method in a disk drive...

Servo method and device for controlling head position for a hard di...

Information recording disk and drive system using no sector ID to i...

Magnetostrictive head with d.c. bias magnetic field

Patents Applicationslast 30 patents

Disk device for serial communication and method of controlling the...

Method for inspecting track pitch in a magnetic disk

Servo information write method, data storage device, and programs

Systems and methods for hard disk drive optimization and manufacturing

Servo information write method, servo control method, data storage...

Data storage device, recording medium, servo writing method, and da...

Disk drive apparatus, head position control method, and hard disk d...

Method for controlling servo information detection timing, method f...