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Hadano-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Information storing device and method for controlling same to recor...
Patent number
8,345,371
Issue date
Jan 1, 2013
Hitachi Global Storage Technologies Japan, Ltd.
Yuichi Koizumi
G11 - INFORMATION STORAGE
Information
Patent Grant
Information storing device and method for controlling same to recor...
Patent number
7,982,999
Issue date
Jul 19, 2011
Hitachi Global Storage Technologies Japan, Ltd.
Yuichi Koizumi
G11 - INFORMATION STORAGE
Information
Patent Grant
Information storing device and method for controlling same to recor...
Patent number
6,865,048
Issue date
Mar 8, 2005
Hitachi, Ltd.
Yuichi Koizumi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information storing device and method for controlling same to recor...
Patent number
6,563,658
Issue date
May 13, 2003
Hitachi, Ltd.
Yuichi Koizumi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Program correcting method and system
Patent number
6,557,166
Issue date
Apr 29, 2003
Hitachi, Ltd.
Makiko Shinohara
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information storing device and method for controlling same to recor...
Patent number
6,476,994
Issue date
Nov 5, 2002
Hitachi, Ltd.
Yuichi Koizumi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information storing device and method for controlling same to recor...
Patent number
6,381,087
Issue date
Apr 30, 2002
Hitachi, Ltd.
Yuichi Koizumi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Program correcting method and system
Patent number
6,205,577
Issue date
Mar 20, 2001
Hitachi, Ltd.
Makiko Shinohara
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information storing device and method for controlling same to recor...
Patent number
6,151,182
Issue date
Nov 21, 2000
Hitachi, Ltd.
Yuichi Koizumi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information storing device and method for controlling same to recor...
Patent number
5,982,570
Issue date
Nov 9, 1999
Hitachi, Ltd.
Yuichi Koizumi
G06 - COMPUTING CALCULATING COUNTING
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
Magnetic disk apparatus
Patent number
5,953,178
Issue date
Sep 14, 1999
Hitachi, Ltd.
Akio Takatsuka
G11 - INFORMATION STORAGE
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...
Information
Patent Grant
Magnetic disc apparatus and magnetic disc
Patent number
5,636,081
Issue date
Jun 3, 1997
Hitachi, Ltd.
Teruyoshi Higashiya
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of parallel purging of translation lookaside buffer in a mul...
Patent number
5,574,878
Issue date
Nov 12, 1996
Hitachi, Ltd.
Osamu Onodera
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Disk device with auxiliary battery and start method thereof
Patent number
5,532,563
Issue date
Jul 2, 1996
Hitachi, Ltd.
Kouji Kodama
G11 - INFORMATION STORAGE
Information
Patent Grant
Rotary information recording/reproducing apparatus carriage actuato...
Patent number
5,486,965
Issue date
Jan 23, 1996
Hitachi, Ltd.
Takeshi Yoshida
G11 - INFORMATION STORAGE
Information
Patent Grant
Spindle unit having pre-load mechanism
Patent number
5,463,511
Issue date
Oct 31, 1995
Hitachi, Ltd.
Masaaki Nakano
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk apparatus and its control method
Patent number
5,404,255
Issue date
Apr 4, 1995
Hitachi, Ltd.
Masahito Kobayashi
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk unit and manufacturing method of carriage structure t...
Patent number
5,301,078
Issue date
Apr 5, 1994
Hitachi, Ltd.
Toshiaki Makino
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk device including humidity controller in disk enclosure
Patent number
5,075,807
Issue date
Dec 24, 1991
Hitachi, Ltd.
Yoichi Inoue
G11 - INFORMATION STORAGE
Information
Patent Grant
Head arm structure mounting a circuit element in a magnetic disc de...
Patent number
5,014,145
Issue date
May 7, 1991
Hitachi, Ltd.
Haruhiko Hosokawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Actuator for positioning heads in magnetic disc apparatus
Patent number
4,855,853
Issue date
Aug 8, 1989
Hitachi, Ltd.
Toshio Matsushita
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disc unit system
Patent number
4,727,439
Issue date
Feb 23, 1988
Hitachi, Ltd.
Toshiyuki Haruna
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
INFORMATION STORING DEVICE AND METHOD FOR CONTROLLING SAME TO RECOR...
Publication number
20110205664
Publication date
Aug 25, 2011
Hitachi Global Storage Technologies Japan, Ltd.
Yuichi KOIZUMI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Information storing device and method for controlling same to recor...
Publication number
20050146806
Publication date
Jul 7, 2005
Yuichi Koizumi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Information storing device and method for controlling same to recor...
Publication number
20030218820
Publication date
Nov 27, 2003
Hitachi, Ltd
Yuichi Koizumi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Information storing device and method for controlling same to recor...
Publication number
20030026030
Publication date
Feb 6, 2003
Hitachi, Ltd
Yuichi Koizumi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Information storing device and method for controlling same to recor...
Publication number
20020101679
Publication date
Aug 1, 2002
Hitachi, Ltd
Yuichi Koizumi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Program correcting method and system
Publication number
20010000825
Publication date
May 3, 2001
Makiko Shinohara
G06 - COMPUTING CALCULATING COUNTING