Yasuhiko Ichikawa

Person

Fussa-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of refreshing data stored on a disk
- Patent number 8,154,814
- Issue date Apr 10, 2012
- Kabushiki Kaisha Toshiba
- Takao Aoki
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk controller, disk drive device, and disk control method
- Patent number 7,986,489
- Issue date Jul 26, 2011
- Kabushiki Kaisha Toshiba
- Takanori Sumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk drive refreshing data written to disk and data refres...
- Patent number 7,925,828
- Issue date Apr 12, 2011
- Kabushiki Kaisha Toshiba
- Takao Aoki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk drive capable of refreshing data written to disk and...
- Patent number 7,870,460
- Issue date Jan 11, 2011
- Kabushiki Kaisha Toshiba
- Taro Iketaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Hard disc apparatus and head alignment method
- Patent number 7,864,486
- Issue date Jan 4, 2011
- Kabushiki Kaisha Toshiba
- Yuma Aso
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus and method for accessing a disk containing an alternate s...
- Patent number 7,085,965
- Issue date Aug 1, 2006
- Kabushiki Kaisha Toshiba
- Yutaka Arakawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk storage apparatus and power supply control method for the same
- Patent number 6,332,196
- Issue date Dec 18, 2001
- Kabushiki Kaisha Toshiba
- Makoto Kawasaki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Data access control for disk system using a limit value and count v...
- Patent number 6,018,788
- Issue date Jan 25, 2000
- Kabushiki Kaisha Toshiba
- Yasuhiko Ichikawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Magnetic disk apparatus and command processing method thereof
- Patent number 5,890,210
- Issue date Mar 30, 1999
- Kabushiki Kaisha Toshiba
- Shuichi Ishii
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method for buffer management in a disk drive having a first segment...
- Patent number 5,758,191
- Issue date May 26, 1998
- Kabushiki Kaisha Toshiba
- Tasuku Kasebayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Disk system having buffer with designated area to be used for repea...
- Patent number 5,727,232
- Issue date Mar 10, 1998
- Kabushiki Kaisha Toshiba
- Ikuko Iida
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF REFRESHING DATA STORED ON A DISK
- Publication number 20110019302
- Publication date Jan 27, 2011
- Kabushiki Kaisha Toshiba
- Takao Aoki
- G11 - INFORMATION STORAGE
Information Patent Application
DISK CONTROLLER, DISK DRIVE DEVICE, AND DISK CONTROL METHOD
- Publication number 20100290150
- Publication date Nov 18, 2010
- Kabushiki Kaisha Toshiba
- Takanori SUMI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MAGNETIC DISK DRIVE CAPABLE OF REFRESHING DATA WRITTEN TO DISK AND...
- Publication number 20100165502
- Publication date Jul 1, 2010
- Kabushiki Kaisha Toshiba
- Taro Iketaki
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DRIVE REFRESHING DATA WRITTEN TO DISK AND DATA REFRES...
- Publication number 20100014183
- Publication date Jan 21, 2010
- Kabushiki Kaisha Toshiba
- Takao Aoki
- G11 - INFORMATION STORAGE
Information Patent Application
HARD DISC APPARATUS AND HEAD ALIGNMENT METHOD
- Publication number 20090195917
- Publication date Aug 6, 2009
- Kabushiki Kaisha Toshiba
- Yuma Aso
- G11 - INFORMATION STORAGE
Information Patent Application
Disk storage apparatus capable of concurrently processing data streams
- Publication number 20050015648
- Publication date Jan 20, 2005
- Kabushiki Kaisha Toshiba
- Fuyuki Tawada
- G11 - INFORMATION STORAGE
Information Patent Application
Apparatus and method for accessing a disk containing an alternate s...
- Publication number 20030191982
- Publication date Oct 9, 2003
- Kabushiki Kaisha Toshiba
- Yutaka Arakawa
- G11 - INFORMATION STORAGE

Yasuhiko Ichikawa

Person

Patents Grantslast 30 patents

Method of refreshing data stored on a disk

Disk controller, disk drive device, and disk control method

Magnetic disk drive refreshing data written to disk and data refres...

Magnetic disk drive capable of refreshing data written to disk and...

Hard disc apparatus and head alignment method

Apparatus and method for accessing a disk containing an alternate s...

Disk storage apparatus and power supply control method for the same

Data access control for disk system using a limit value and count v...

Magnetic disk apparatus and command processing method thereof

Method for buffer management in a disk drive having a first segment...

Disk system having buffer with designated area to be used for repea...

Patents Applicationslast 30 patents

METHOD OF REFRESHING DATA STORED ON A DISK

DISK CONTROLLER, DISK DRIVE DEVICE, AND DISK CONTROL METHOD

MAGNETIC DISK DRIVE CAPABLE OF REFRESHING DATA WRITTEN TO DISK AND...

MAGNETIC DISK DRIVE REFRESHING DATA WRITTEN TO DISK AND DATA REFRES...

HARD DISC APPARATUS AND HEAD ALIGNMENT METHOD

Disk storage apparatus capable of concurrently processing data streams

Apparatus and method for accessing a disk containing an alternate s...