Tetsuo Sawa

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Tagajyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Micro floppy disc cassette
- Patent number 4,644,435
- Issue date Feb 17, 1987
- Sony Corporation
- Tsuneo Nemoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Flexible magnetic disc cassette with a slidably mounted shutter
- Patent number 4,581,670
- Issue date Apr 8, 1986
- Sony Corporation
- Tsuneo Nemoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disc device
- Patent number 4,544,977
- Issue date Oct 1, 1985
- Sony Corporation
- Kazuo Ozawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Flexible magnetic disc cassette
- Patent number 4,510,546
- Issue date Apr 9, 1985
- Sony Corporation
- Shojiro Asami
- G11 - INFORMATION STORAGE