Akira Azuma

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Tokorozawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing solar-cell watch dial
- Patent number 6,099,761
- Issue date Aug 8, 2000
- Citizen Watch Co., Ltd.
- Akio Aoki
- G04 - HOROLOGY
Information Patent Grant
Solar-cell watch dial and process for producing the same
- Patent number 6,021,099
- Issue date Feb 1, 2000
- Citizen Watch Co., Ltd.
- Akio Aoki
- G04 - HOROLOGY
Information Patent Grant
Dial plate for solar battery powered watch
- Patent number 5,912,064
- Issue date Jun 15, 1999
- Citizen Watch Co., Ltd.
- Akira Azuma
- G04 - HOROLOGY
Information Patent Grant
Solar battery powered watch
- Patent number 5,761,158
- Issue date Jun 2, 1998
- Citizen Watch Co., Ltd.
- Akira Azuma
- G04 - HOROLOGY