Youichi Wakai

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Suwa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electronic watch with demonstration display mode
- Patent number 4,398,834
- Issue date Aug 16, 1983
- Kabushiki Kaisha Suwa Seikosha
- Youichi Wakai
- G04 - HOROLOGY
Information Patent Grant
Time-correcting mechanism for electronic timepiece
- Patent number 4,365,898
- Issue date Dec 28, 1982
- Kabushiki Kaisha Suwa Seikosha
- Youichi Wakai
- G04 - HOROLOGY