Norimasa Arai

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Magnetooptical disk drive having improved features for reducing the...
- Patent number 5,229,900
- Issue date Jul 20, 1993
- Victor Company of Japan, Ltd.
- Norimasa Arai
- G11 - INFORMATION STORAGE
Information Patent Grant
Signal-pickup cartridge for a rotary recording medium reproducing a...
- Patent number 4,488,286
- Issue date Dec 11, 1984
- Victor Company of Japan, Ltd.
- Takashi Saito
- G11 - INFORMATION STORAGE
Information Patent Grant
Rotary recording medium clamping mechanism
- Patent number 4,433,406
- Issue date Feb 21, 1984
- Victor Company of Japan, Ltd.
- Takashi Saito
- G11 - INFORMATION STORAGE