Tetsu Yanagisawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Information recording medium and information reproducing apparatus...
- Patent number 5,914,930
- Issue date Jun 22, 1999
- Sony Corporation
- Norimasa Sasaki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
CD-ROM disc reproducing apparatus with means for storing progressio...
- Patent number 5,463,601
- Issue date Oct 31, 1995
- Sony Corporation
- Tetsu Yanagisawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Miniaturized disc player
- Patent number 5,357,500
- Issue date Oct 18, 1994
- Sony Corporation
- Tetsu Yanagisawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Disc chucking mechanism
- Patent number 5,303,098
- Issue date Apr 12, 1994
- Sony Corporation
- Eiji Yamamori
- G11 - INFORMATION STORAGE
Information Patent Grant
Disc player with a pickup feeding apparatus
- Patent number 5,119,362
- Issue date Jun 2, 1992
- Sony Corporation
- Tetsu Yanagisawa
- G11 - INFORMATION STORAGE