Hirohiko Sakashita

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Nara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of generating information used for the copy protecting signa...
- Patent number 6,018,608
- Issue date Jan 25, 2000
- Matsushita Electric Industrial Co., Ltd.
- Hirohiko Sakashita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Picture quality improving circuit using a cumulative histogram
- Patent number 5,388,168
- Issue date Feb 7, 1995
- Matsushita Electric Industrial Co., Ltd.
- Hirohiko Sakashita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Image compression processing apparatus having means for removing ji...
- Patent number 5,270,815
- Issue date Dec 14, 1993
- Matsushita Electric Industrial Co., Ltd.
- Naoji Okumura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Comb filter
- Patent number 5,231,477
- Issue date Jul 27, 1993
- Matsushita Electric Industrial Co., Ltd.
- Naoji Okumura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Video chroma signal processing circuit
- Patent number 5,192,996
- Issue date Mar 9, 1993
- Matsushita Electric Industrial Co., Ltd.
- Hirohiko Sakashita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Video signal processing circuit for compressed picture insertion fu...
- Patent number 5,138,455
- Issue date Aug 11, 1992
- Matsushita Electric Industrial Co., Ltd.
- Naoji Okumura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE