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Yoshihisa Kamo
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Perpendicular hard disk drive resistive against external magnetic f...
Patent number
7,486,485
Issue date
Feb 3, 2009
Hitachi Global Storage Technologies Netherlands B.V.
Takehiko Hamaguchi
G11 - INFORMATION STORAGE
Information
Patent Grant
Data reconstruction method and system wherein timing of data of dat...
Patent number
7,434,095
Issue date
Oct 7, 2008
Hitachi, Ltd.
Atsushi Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Storage unit subsystem
Patent number
7,320,089
Issue date
Jan 15, 2008
Hitachi, Ltd.
Akira Yamamoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Disk system and power-on sequence for the same
Patent number
7,242,656
Issue date
Jul 10, 2007
Hitachi, Ltd.
Yoshihisa Kamo
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data reconstruction method and system wherein timing of data of dat...
Patent number
6,966,011
Issue date
Nov 15, 2005
Hitachi, Ltd.
Atsushi Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Storage unit subsystem
Patent number
6,874,101
Issue date
Mar 29, 2005
Hitachi, Ltd.
Akira Yamamoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Storage unit subsystem
Patent number
6,757,839
Issue date
Jun 29, 2004
Hitachi, Ltd.
Akira Yamamoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data reconstruction method and system wherein timing of data recons...
Patent number
6,625,748
Issue date
Sep 23, 2003
Hitachi, Ltd.
Atsushi Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Disk system and power-on sequence for the same
Patent number
6,625,690
Issue date
Sep 23, 2003
Hitachi, Ltd.
Yoshihisa Kamo
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for implementing redundancy on data stored in...
Patent number
6,611,897
Issue date
Aug 26, 2003
Hitachi, Ltd.
Tsunetaka Komachiya
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method for changing raid-level in disk array subsystem
Patent number
6,571,314
Issue date
May 27, 2003
Hitachi, Ltd.
Tsunetaka Komachiya
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Storage unit subsystem
Patent number
6,532,549
Issue date
Mar 11, 2003
Hitachi, Ltd.
Akira Yamamoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Disk system and power-on sequence for the same
Patent number
6,397,294
Issue date
May 28, 2002
Hitachi, Ltd.
Yoshihisa Kamo
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Storage unit subsystem
Patent number
6,327,673
Issue date
Dec 4, 2001
Hitachi, Ltd.
Akira Yamamoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Disk system and power-on sequence for the same
Patent number
6,286,108
Issue date
Sep 4, 2001
Hitachi, Ltd.
Yoshihisa Kamo
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Array disk subsystem
Patent number
6,243,824
Issue date
Jun 5, 2001
Hitachi, Ltd.
Hitoshi Kakuta
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data reconstruction method and system wherein timing of data recons...
Patent number
6,161,194
Issue date
Dec 12, 2000
Hitachi, Ltd.
Atsushi Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Storage unit subsystem
Patent number
6,145,091
Issue date
Nov 7, 2000
Hitachi, Ltd.
Akira Yamamoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Disk system and power-on sequence for the same
Patent number
6,131,142
Issue date
Oct 10, 2000
Hitachi, Ltd.
Yoshihisa Kamo
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Disk system with activation control of disk drive motors
Patent number
6,012,124
Issue date
Jan 4, 2000
Hitachi, Ltd.
Yoshihisa Kamo
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data reconstruction method and system wherein timing of data recons...
Patent number
6,000,039
Issue date
Dec 7, 1999
Hitachi, Ltd.
Atsushi Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data reconstruction method and system wherein timing of data recons...
Patent number
5,941,993
Issue date
Aug 24, 1999
Hitachi, Ltd.
Atsushi Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Storage unit subsystem
Patent number
5,917,999
Issue date
Jun 29, 1999
Hitachi, Ltd.
Akira Yamamoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data reconstruction method and system wherein timing of data recons...
Patent number
5,889,938
Issue date
Mar 30, 1999
Hitachi, Ltd.
Atsushi Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Disc array device and disc control method
Patent number
5,745,771
Issue date
Apr 28, 1998
Hitachi, Ltd.
Mitsuo Ohyama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Control unit in storage subsystem with improvement of redundant dat...
Patent number
5,682,396
Issue date
Oct 28, 1997
Hitachi, Ltd.
Akira Yamamoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Disk system and power-on sequence for the same
Patent number
5,673,412
Issue date
Sep 30, 1997
Hitachi, Ltd.
Yoshihisa Kamo
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
High capacity data storage method and system using independently co...
Patent number
5,574,881
Issue date
Nov 12, 1996
Hitachi, Ltd.
Hiroshi Yasuoka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Variable length data in a parallel disk array
Patent number
5,572,699
Issue date
Nov 5, 1996
Hitachi, Ltd.
Yoshihisa Kamo
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data reconstruction method and system wherein timing of data recons...
Patent number
5,495,572
Issue date
Feb 27, 1996
Hitachi, Ltd.
Atsushi Tanaka
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
Perpendicular hard disk drive resistive against external magnetic f...
Publication number
20060092556
Publication date
May 4, 2006
Hitachi Global Storage Technologies Netherlands B.V.
Takehiko Hamaguchi
G11 - INFORMATION STORAGE
Information
Patent Application
Data reconstruction method and system wherein timing of data of dat...
Publication number
20060010343
Publication date
Jan 12, 2006
Atsushi Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Storage unit subsystem
Publication number
20050050267
Publication date
Mar 3, 2005
Hitachi, Ltd.
Akira Yamamoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Data reconstruction method and system wherein timing of data of dat...
Publication number
20040153730
Publication date
Aug 5, 2004
Atsushi Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Disk system and power-on sequence for the same
Publication number
20040107313
Publication date
Jun 3, 2004
Hitachi, Ltd.
Yoshihisa Kamo
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
STORAGE UNIT SUBSYSTEM
Publication number
20040078645
Publication date
Apr 22, 2004
Hitachi, Ltd.
Akira Yamamoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Storage unit subsystem
Publication number
20030126495
Publication date
Jul 3, 2003
Hitachi, Ltd.
Akira Yamamoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Disk system and power-on sequence for the same
Publication number
20020116574
Publication date
Aug 22, 2002
Hitachi, Ltd.
Yoshihisa Kamo
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method and apparatus for changing raid-level in disk array subsystem
Publication number
20020112118
Publication date
Aug 15, 2002
Tsunetaka Komachiya
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Storage unit subsystem
Publication number
20020023240
Publication date
Feb 21, 2002
Hitachi, Ltd.
Akira Yamamoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Disk system and power-on sequence for the same
Publication number
20010008018
Publication date
Jul 12, 2001
Hitachi, Ltd.
Yoshihisa Kamo
G06 - COMPUTING CALCULATING COUNTING