Yoichi Seki

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Shisui, JA

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Patents Grantslast 30 patents

Information Patent Grant
Driving mechanism for a timepiece
- Patent number 4,084,403
- Issue date Apr 18, 1978
- Seiko Koki Kabushiki Kaisha
- Kiyoshi Kitai
- G04 - HOROLOGY
Information Patent Grant
Exposure multiple setting device for programming electric shutter
- Patent number 4,053,908
- Issue date Oct 11, 1977
- Seiko Koki Kabushiki Kaisha
- Takeo Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Drive device for electric clock
- Patent number 4,037,400
- Issue date Jul 26, 1977
- Seiko Koki Kabushiki Kaisha
- Kiyoshi Kitai
- G04 - HOROLOGY