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Koichi Sudo
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Fujisawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Gamma correction circuit
Patent number
6,344,857
Issue date
Feb 5, 2002
Hitachi, Ltd.
Takaaki Matono
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Noise reduction signal processing circuit and display apparatus
Patent number
6,195,132
Issue date
Feb 27, 2001
Hitachi, Ltd.
Katsunobu Kimura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Image display apparatus having a circuit for magnifying and process...
Patent number
6,151,079
Issue date
Nov 21, 2000
Hitachi, Ltd.
Tatsuo Nagata
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Image display apparatus
Patent number
6,078,702
Issue date
Jun 20, 2000
Hitachi, Ltd.
Takaaki Matono
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Video signal processing apparatus with means for magnifying and pro...
Patent number
5,953,075
Issue date
Sep 14, 1999
Hitachi, Ltd.
Tatsuo Nagata
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Image display apparatus capable of displaying personal computer sig...
Patent number
5,838,381
Issue date
Nov 17, 1998
Hitachi, Ltd.
Yasuhiro Kasahara
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS