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Yasuo Kamiyama
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Sayama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Electronic timepiece having power generating function
Patent number
6,580,665
Issue date
Jun 17, 2003
Citizen Watch Co., Ltd.
Yasuo Kamiyama
G04 - HOROLOGY
Information
Patent Grant
Display unit structure for electronic device
Patent number
5,841,738
Issue date
Nov 24, 1998
Citizen Watch Co., Ltd.
Yuichi Kamei
G04 - HOROLOGY
Information
Patent Grant
Watch with hands for multiple time displays
Patent number
5,339,293
Issue date
Aug 16, 1994
Citizen Watch Co., Ltd.
Yasuo Kamiyama
G04 - HOROLOGY
Information
Patent Grant
Electronic timepiece
Patent number
4,788,669
Issue date
Nov 29, 1988
Citizen Watch Co., Ltd.
Yasuo Kamiyama
G04 - HOROLOGY
Information
Patent Grant
Method and apparatus for stabilizing measured values for display
Patent number
4,780,841
Issue date
Oct 25, 1988
Citizen Watch Co.
Singo Ichikawa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Watch with hand in form of circular film and provided with electros...
Patent number
4,737,941
Issue date
Apr 12, 1988
Citizen Watch Co., Ltd.
Yasuo Kamiyama
G04 - HOROLOGY
Information
Patent Grant
Electronic timepiece with a chronograph system
Patent number
4,623,260
Issue date
Nov 18, 1986
Citizen Watch Co., Ltd.
Yasuo Kamiyama
G04 - HOROLOGY
Information
Patent Grant
Correction system for hands display type of electronic timepiece
Patent number
4,526,476
Issue date
Jul 2, 1985
Citizen Watch Company Limited
Yasuaki Nakayama
G04 - HOROLOGY
Information
Patent Grant
Arrangement of analog-type electronic wristwatch
Patent number
4,478,524
Issue date
Oct 23, 1984
Citizen Watch Company Limited
Mitsuo Saitoh
G04 - HOROLOGY
Information
Patent Grant
Arrangement of analog-type electronic wristwatch
Patent number
4,477,195
Issue date
Oct 16, 1984
Citizen Watch Company Limited
Mitsuo Saitoh
G04 - HOROLOGY
Information
Patent Grant
Wristwatch movement
Patent number
4,223,521
Issue date
Sep 23, 1980
Citizen Watch Co., Ltd.
Mituo Saitoh
G04 - HOROLOGY
Information
Patent Grant
Watch movement mounting structure
Patent number
4,184,317
Issue date
Jan 22, 1980
Citizen Watch Co., Ltd.
Nobuyuki Kanda
G04 - HOROLOGY