Kiyoaki Sugiyama

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Akashi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Circular door operating method and apparatus
- Patent number 4,785,579
- Issue date Nov 22, 1988
- Nippon Air Brake Co., Ltd.
- Kiyoaki Sugiyama
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Automatic tension adjusting mechanism for winding and transmitting...
- Patent number 4,708,695
- Issue date Nov 24, 1987
- Nippon Air Brake Co., Ltd.
- Kiyoaki Sugiyama
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES