Ichiro Miyao

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Sakai, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rotary blade and a rotary substrate for use in the rotary blade
- Patent number 5,012,792
- Issue date May 7, 1991
- Osaka Diamond Industrial Co., Ltd.
- Azuma Kawata
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Method for welding cutter segments
- Patent number 4,689,919
- Issue date Sep 1, 1987
- Osaka Diamond Industrial Co.
- Takao Kawakita
- B28 - WORKING CEMENT, CLAY, OR STONE