Kuniharu Natori

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Nagano, JP

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Patents Grantslast 30 patents

Information Patent Grant
Gear train structure of an electronic watch
- Patent number 5,617,376
- Issue date Apr 1, 1997
- Seiko Epson Corporation
- Toyoshige Honzawa
- G04 - HOROLOGY
Information Patent Grant
Gear train structure of an electronic watch
- Patent number 5,506,820
- Issue date Apr 9, 1996
- Seiko Epson Corporation
- Toyoshige Honzawa
- G04 - HOROLOGY
Information Patent Grant
Electronic timekeeping apparatus with temperature compensation and...
- Patent number 4,761,771
- Issue date Aug 2, 1988
- Seiko Epson Corporation
- Tatsuo Moriya
- G04 - HOROLOGY