Norio Hasegawa

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Plural disk cartridge arrangement
- Patent number 4,734,814
- Issue date Mar 29, 1988
- Sony Corporation
- Toyomi Fujino
- G11 - INFORMATION STORAGE
Information Patent Grant
Disc players fitted for automatic change of discs
- Patent number 4,701,900
- Issue date Oct 20, 1987
- Sony Corporation
- Norio Hasegawa
- G11 - INFORMATION STORAGE