Yoshio Shibai

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Kyoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Grindstone adapter
- Patent number 6,179,697
- Issue date Jan 30, 2001
- Sanwa Kenma Kogyo Co., Ltd.
- Yoshio Shibai
- B24 - GRINDING POLISHING
Information Patent Grant
Grinding chip fitting type grinding plate
- Patent number 5,586,930
- Issue date Dec 24, 1996
- Sanwa Kenma Kogyo Co., Ltd.
- Teruoki Hayashi
- B24 - GRINDING POLISHING