Masamichi Yamauchi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
LCD having light interceptive members for shielding light from exte...
- Patent number 5,745,202
- Issue date Apr 28, 1998
- Citizen Watch Co., Ltd.
- Masamichi Yamauchi
- G02 - OPTICS
Information Patent Grant
Illumination level/musical tone converter
- Patent number 4,483,230
- Issue date Nov 20, 1984
- Citizen Watch Company Limited
- Masamichi Yamauchi
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Correction signal generating system for an electronic timepiece
- Patent number 4,367,958
- Issue date Jan 11, 1983
- Citizen Watch Company Limited
- Hisashi Kawahara
- G04 - HOROLOGY
Information Patent Grant
Digital electronic timepiece
- Patent number 4,247,927
- Issue date Jan 27, 1981
- Citizen Watch Company Limited
- Mituo Oooka
- G04 - HOROLOGY