Masamichi Yamauchi

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Ichikawa, JA

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Patents Grantslast 30 patents

Information Patent Grant
Adjustable circuit for an electronic timepiece
- Patent number 4,075,827
- Issue date Feb 28, 1978
- Citizen Watch Co., Ltd.
- Makoto Yoshida
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece
- Patent number 3,998,044
- Issue date Dec 21, 1976
- Citizen Watch Co., Ltd.
- Masamichi Yamauchi
- G04 - HOROLOGY
Information Patent Grant
Wristwatch with a time display control switch means
- Patent number 3,935,701
- Issue date Feb 3, 1976
- Citizen Watch Co., Ltd.
- Masamichi Yamauchi
- G04 - HOROLOGY