Kouhei Toyama

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Nishi-shirakawa-gun, JP

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Patents Grantslast 30 patents

Information Patent Grant
Wire saw apparatus
- Patent number 5,907,988
- Issue date Jun 1, 1999
- Shin-Etsu Handotai Co., Ltd.
- Etsuo Kiuchi
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Method for cutting a workpiece with a wire saw
- Patent number 5,839,425
- Issue date Nov 24, 1998
- Shin-Etsu Handotai Co., Ltd.
- Kouhei Toyama
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Wire saw
- Patent number 5,715,807
- Issue date Feb 10, 1998
- Shin-Etsu Handotai Co., Ltd.
- Kouhei Toyama
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Roller having grooves for wire saw
- Patent number 5,575,189
- Issue date Nov 19, 1996
- Shin-Etsu Handotai Co., Ltd.
- Etsuo Kiuchi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR