Yukio Hamasaki

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for controlling movement of an optical memory card for da...
- Patent number 4,994,658
- Issue date Feb 19, 1991
- CSK Corporation
- Shunzo Takahashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Apparatus for controlling movement of an optical memory card for da...
- Patent number 4,933,537
- Issue date Jun 12, 1990
- CSK Corporation
- Shunzo Takahashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and device for reading out optically recorded data and compe...
- Patent number 4,855,981
- Issue date Aug 8, 1989
- Computer Services Corporation
- Fumio Kimura
- G06 - COMPUTING CALCULATING COUNTING