Tsuyoshi Kawahara

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Yokohama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Abrasive and boring method using the same
- Patent number 6,959,771
- Issue date Nov 1, 2005
- Mitsubishi Materials Corporation
- Shigeru Mazaki
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
DRESSER FEEDING DEVICE
- Publication number 20090264057
- Publication date Oct 22, 2009
- MITSUBISHI MATERIALS CORPORATION
- Tsuyoshi Kawahara
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
Abrasive and boring method using the same
- Publication number 20020182018
- Publication date Dec 5, 2002
- Shigeru Mazaki
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
Drive pulley and the wire saw equipment using it and the cutting me...
- Publication number 20010029939
- Publication date Oct 18, 2001
- MITSUBISHI MATERIALS CORPORATION
- Shigeru Mazaki
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR