Daisuke Yamaya

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electronic timepiece and method of driving the electronic timepiece
- Patent number 6,580,666
- Issue date Jun 17, 2003
- Seiko Instruments Inc.
- Daisuke Yamaya
- G04 - HOROLOGY
Information Patent Grant
Electronic watch
- Patent number 6,327,222
- Issue date Dec 4, 2001
- Seiko Instruments Inc.
- Daisuke Yamaya
- G04 - HOROLOGY