Kiyoshi Tsuboi deceased

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late of Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical memory for storing and retrieving information by light expo...
- Patent number 4,969,141
- Issue date Nov 6, 1990
- Kabushiki Kaisha Toshiba
- Takashi Takaoka
- G11 - INFORMATION STORAGE