Tetsuya Yasuda

Follow

Person

Tokyo, JA

People

Patents Grantslast 30 patents

Information Patent Grant
Liquid crystal display wrist watch
- Patent number 4,083,177
- Issue date Apr 11, 1978
- Citizen Watch Co. Ltd.
- Katsuo Nishimura
- G02 - OPTICS
Information Patent Grant
Electronic timepiece with electro-optical display
- Patent number 4,064,689
- Issue date Dec 27, 1977
- Citizen Watch Co., Ltd.
- Tetsuya Yasuda
- G04 - HOROLOGY
Information Patent Grant
Switch mechanism for electronic timepiece
- Patent number 3,945,190
- Issue date Mar 23, 1976
- Citizen Watch Co., Ltd.
- Satoshi Kimura
- G04 - HOROLOGY