Katsuya Ishikawa

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Takatsuki-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Gradation correcting apparatus gradation correcting method and vide...
- Patent number 7,113,227
- Issue date Sep 26, 2006
- Matsushita Electric Industrial Co., Ltd.
- Yuki Kakuya
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Signal processor
- Patent number 6,965,417
- Issue date Nov 15, 2005
- Matsushita Electric Industrial Co., Ltd.
- Hidetoshi Suzuki
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Gradation correction circuit, and γ correction apparatus
- Patent number 6,636,229
- Issue date Oct 21, 2003
- Matsushita Electric Industrial Co., Ltd.
- Katsuya Ishikawa
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Dynamic gamma correction apparatus
- Patent number 6,633,343
- Issue date Oct 14, 2003
- Matsushita Electric Industrial Co., Ltd.
- Keiichi Ito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Color difference signal correction apparatus
- Patent number 6,580,464
- Issue date Jun 17, 2003
- Matsushita Electric Industrial Co., Ltd.
- Hisao Kunitani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Signal processor
- Publication number 20030020837
- Publication date Jan 30, 2003
- Hidetoshi Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Dynamic gamma correction apparatus
- Publication number 20020036716
- Publication date Mar 28, 2002
- Keiichi Ito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Gradation correction circuit, and gamma correction apparatus
- Publication number 20010043183
- Publication date Nov 22, 2001
- Katsuya Ishikawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE