Yoshihito Owa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Time signal clock
- Patent number 4,522,506
- Issue date Jun 11, 1985
- Seikosha Co., Ltd.
- Yoshihito Owa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electronic timepiece with electro-optic display
- Patent number 4,355,381
- Issue date Oct 19, 1982
- Seikosha Co., Ltd.
- Masanori Fujita
- G04 - HOROLOGY