Hiroyuki Koike

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Nerima-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electronic timepiece with calendar device
- Patent number 6,477,114
- Issue date Nov 5, 2002
- Citizen Watch Co., Ltd.
- Takeo Mutoh
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece with calendar month-end non-correction device
- Patent number 6,385,136
- Issue date May 7, 2002
- Citizen Watch Co., Ltd.
- Haruhiko Higuchi
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece with calendar month-end non-correction device
- Patent number 6,278,661
- Issue date Aug 21, 2001
- Citizen Watch Co., Ltd.
- Haruhiko Higuchi
- G04 - HOROLOGY
Information Patent Grant
Electronic watch with calendar
- Patent number 6,240,052
- Issue date May 29, 2001
- Citizen Watch Co., Ltd.
- Yasuo Kitajima
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece provided with a calendar
- Patent number 6,046,964
- Issue date Apr 4, 2000
- Citizen Watch Co., Ltd.
- Haruhiko Higuchi
- G04 - HOROLOGY

Patents Applicationslast 30 patents

Information Patent Application
Electronic timepiece with calendar month-end non-correction device
- Publication number 20010028605
- Publication date Oct 11, 2001
- CITIZEN WATCH CO., LTD.
- Haruhiko Higuchi
- G04 - HOROLOGY