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Satoshi Itami
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Kawasaki-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical information recording/reproducing apparatus
Patent number
6,339,564
Issue date
Jan 15, 2002
Fujitsu Limited
Koichi Tezuka
G11 - INFORMATION STORAGE
Information
Patent Grant
Software processing apparatus writing software to a medium only if...
Patent number
6,278,984
Issue date
Aug 21, 2001
Fujitsu Limited
Satoshi Itami
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Optical information recording/reproducing apparatus
Patent number
6,185,166
Issue date
Feb 6, 2001
Fujitsu Limited
Koichi Tezuka
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disk and optical disk apparatus
Patent number
6,011,764
Issue date
Jan 4, 2000
Fujitsu Limited
Satoshi Itami
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Unauthorized use preventing method for optical disks, optical disk...
Patent number
5,982,886
Issue date
Nov 9, 1999
Fujitsu Limited
Satoshi Itami
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
System for decrypting encrypted software
Patent number
5,875,247
Issue date
Feb 23, 1999
Fujitsu Limited
Kazuo Nakashima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Removable storage medium and computer system using the same
Patent number
5,809,300
Issue date
Sep 15, 1998
Fujitsu Limited
Kenichi Utsumi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Optical information recording/reproducing apparatus having a compos...
Patent number
5,793,725
Issue date
Aug 11, 1998
Fujitsu Limited
Koichi Tezuka
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disk having an erased-state indicator and optical disk appa...
Patent number
5,777,965
Issue date
Jul 7, 1998
Fujitsu Limited
Satoshi Itami
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Optical disk and method of preventing fraudulent use of optical dis...
Patent number
5,684,785
Issue date
Nov 4, 1997
Fujitsu Limited
Satoshi Itami
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical information recording/reproducing apparatus
Patent number
5,623,462
Issue date
Apr 22, 1997
Fujitsu Limited
Koichi Tezuka
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disk having an erased-state indicator and optical disk appa...
Patent number
5,617,393
Issue date
Apr 1, 1997
Fujitsu Limited
Satoshi Itami
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Unauthorized use prevention method for optical disks, optical disk...
Patent number
5,418,852
Issue date
May 23, 1995
Fujitsu Limited
Satoshi Itami
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Character string retrieval system using index and unit for making t...
Patent number
5,357,431
Issue date
Oct 18, 1994
Fujitsu Limited
Masahiro Nakada
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
Optical information recording/reproducing apparatus
Publication number
20010001264
Publication date
May 17, 2001
FUJITSU LIMITED
Koichi Tezuka
G11 - INFORMATION STORAGE