Kiyoshi Hashimoto

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Chiba-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Breathing device for diving
- Patent number 5,960,793
- Issue date Oct 5, 1999
- Grand Bleu Inc.
- Shunsuke Matsuoka
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Mouthpiece unit for semiclosed-circuit breathing apparatus
- Patent number 5,839,435
- Issue date Nov 24, 1998
- Grand Bleu, Inc.
- Shunsuke Matsuoka
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT