Satoru Koyahara

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical recording medium and recording system
- Patent number 5,796,708
- Issue date Aug 18, 1998
- Kabushiki Kaisha Toshiba
- Hideki Ohkawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium
- Patent number 4,682,321
- Issue date Jul 21, 1987
- Kabushiki Kaisha Toshiba
- Takashi Takaoka
- G11 - INFORMATION STORAGE