Koichi Yokosuka

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Buckle for a watch band
- Patent number 4,539,736
- Issue date Sep 10, 1985
- Seiko Instruments & Electronics Ltd.
- Koichi Yokosuka
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Band attachment assembly for attaching a watchband to a watchcase
- Patent number 4,432,476
- Issue date Feb 21, 1984
- Seiko Instruments & Electronics Ltd.
- Koichi Yokosuka
- A44 - HABERDASHERY JEWELLERY