Ryo Hirayama

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Kamakura, JP

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Patents Grantslast 30 patents

Information Patent Grant
Video signal emphasis and deemphasis method and apparatus
- Patent number 5,771,333
- Issue date Jun 23, 1998
- Victor Company of Japan
- Ryo Hirayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for recording and reproducing video signals with preempha...
- Patent number 5,671,066
- Issue date Sep 23, 1997
- Victor Company of Japan, Ltd.
- Ryo Hirayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for reproducing a video signal subject to pre-...
- Patent number 5,526,136
- Issue date Jun 11, 1996
- Victor Company of Japan, Ltd.
- Hirofumi Hisikura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for recording and reproducing video signals with preempha...
- Patent number 5,517,322
- Issue date May 14, 1996
- Victor Company of Japan, Ltd.
- Ryo Hirayama
- G11 - INFORMATION STORAGE