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Koji Ozawa
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Ninomiya, JP
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Patents Grants
last 30 patents
Information
Patent Grant
External storage control device and data transfer method between ex...
Patent number
RE43600
Issue date
Aug 21, 2012
Hitachi, Ltd.
Koji Ozawa
711 - Electrical computers and digital processing systems: memory
Information
Patent Grant
Data processing system and copy processing method thereof
Patent number
7,870,423
Issue date
Jan 11, 2011
Hitachi, Ltd.
Masamitsu Takahashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Storage system with mainframe and open host performing remote copyi...
Patent number
7,610,461
Issue date
Oct 27, 2009
Hitachi, Ltd.
Masamitsu Takahashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data processing system and copy processing method thereof
Patent number
7,370,228
Issue date
May 6, 2008
Hitachi, Ltd.
Masamitsu Takahashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Storage system, method of controlling storage system, and storage d...
Patent number
7,287,132
Issue date
Oct 23, 2007
Hitachi, Ltd.
Masamitsu Takahashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Storage system, method of controlling storage system, and storage d...
Patent number
7,185,152
Issue date
Feb 27, 2007
Hitachi, Ltd.
Masamitsu Takahashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Storage system, method of controlling storage system, and storage d...
Patent number
7,114,044
Issue date
Sep 26, 2006
Hitachi, Ltd.
Masamitsu Takahashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Subsystem and method of organizing multiplexed data
Patent number
6,993,636
Issue date
Jan 31, 2006
Hitachi, Ltd.
Hitoshi Shiozawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Clustering storage system
Patent number
6,922,762
Issue date
Jul 26, 2005
Hitachi, Ltd.
Yusuke Hirakawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Subsystem and method of reorganizing multiplexed data
Patent number
6,742,093
Issue date
May 25, 2004
Hitachi, Ltd.
Hitoshi Shiozawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Subsystem and method of reorganizing multiplexed data
Patent number
6,615,328
Issue date
Sep 2, 2003
Hitachi, Ltd.
Hitoshi Shiozawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
External storage control device and data transfer method between ex...
Patent number
6,470,432
Issue date
Oct 22, 2002
Hitachi, Ltd.
Koji Ozawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
External storage control device and data transfer method between ex...
Patent number
6,321,292
Issue date
Nov 20, 2001
Hitachi, Ltd.
Koji Ozawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Controller limiting modification of cache based upon amount of dirt...
Patent number
6,148,367
Issue date
Nov 14, 2000
Hitachi, Ltd.
Toshiaki Tsuboi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
External storage control device and data transfer method between ex...
Patent number
5,978,890
Issue date
Nov 2, 1999
Hitachi, Ltd.
Koji Ozawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Graphics display system including parallel graphics processors exec...
Patent number
5,847,715
Issue date
Dec 8, 1998
Hitachi, Ltd.
Ryo Fujita
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Parallel processing method for use with graphics processor
Patent number
5,781,199
Issue date
Jul 14, 1998
Hitachi, Ltd.
Kazunori Oniki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Graphic display apparatus and display method thereof
Patent number
5,757,364
Issue date
May 26, 1998
Hitachi, Ltd.
Koji Ozawa
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Graphics display system including graphics processor having a regis...
Patent number
5,666,520
Issue date
Sep 9, 1997
Hitachi, Ltd.
Ryo Fujita
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Limiting modification of cache entries in a write-back cache based...
Patent number
5,623,631
Issue date
Apr 22, 1997
Hitachi, Ltd.
Toshiaki Tsuboi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Controller for storage unit and method of controlling storage unit
Patent number
5,418,929
Issue date
May 23, 1995
Hitachi, Ltd.
Toshiaki Tsuboi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method of and apparatus for automatic recovery of a cache in a stor...
Patent number
5,375,227
Issue date
Dec 20, 1994
Hitachi, Ltd.
Masaharu Akatsu
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Controller for storage unit and method of controlling storage unit
Patent number
5,307,473
Issue date
Apr 26, 1994
Hitachi, Ltd.
Toshiaki Tsuboi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Address translation circuit including two translation buffers
Patent number
4,849,876
Issue date
Jul 18, 1989
Hitachi, Ltd.
Koji Ozawa
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
STORAGE SYSTEM, METHOD OF CONTROLLING STORAGE SYSTEM, AND STORAGE D...
Publication number
20100017574
Publication date
Jan 21, 2010
Hitachi, Ltd
Masamitsu Takahashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
DATA PROCESSING SYSTEM AND COPY PROCESSING METHOD THEREOF
Publication number
20080178041
Publication date
Jul 24, 2008
Masamitsu Takahashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Storage system, method of controlling storage system, and storage d...
Publication number
20080052479
Publication date
Feb 28, 2008
Hitachi, Ltd.
Masamitsu Takahashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Storage system, method of controlling storage system, and storage d...
Publication number
20080034177
Publication date
Feb 7, 2008
Masamitsu Takahashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Storage system performing remote copying
Publication number
20080028172
Publication date
Jan 31, 2008
Masamitsu Takahashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Storage system, method of controlling storage system, and storage d...
Publication number
20070022266
Publication date
Jan 25, 2007
Hitachi, Ltd.
Masamitsu Takahashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Data processing system and copy processing method thereof
Publication number
20060048014
Publication date
Mar 2, 2006
Masamitsu Takahashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Storage system, method of controlling storage system, and storage d...
Publication number
20060004894
Publication date
Jan 5, 2006
Hitachi, Ltd.
Masamitsu Takahashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Storage system, method of controlling storage system, and storage d...
Publication number
20050050288
Publication date
Mar 3, 2005
Masamitsu Takahashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Subsystem and method of organizing multiplexed data
Publication number
20040093473
Publication date
May 13, 2004
Hitachi, Ltd
Hitoshi Shiozawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Clustering storage system
Publication number
20030185064
Publication date
Oct 2, 2003
Hitachi, Ltd
Yusuke Hirakawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Subsystem and method of reorganizing multiplexed data
Publication number
20030110362
Publication date
Jun 12, 2003
Hitachi, Ltd
Hitoshi Shiozawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
External storage control device and data transfer method between ex...
Publication number
20020032834
Publication date
Mar 14, 2002
Hitachi, Ltd.
Koji Ozawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Subsystem and method of reorganizing multiplexed data
Publication number
20020026559
Publication date
Feb 28, 2002
Hitachi, Ltd
Hitoshi Shiozawa
G06 - COMPUTING CALCULATING COUNTING