Ikuo Hattori

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Mitsukaido, JP

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Patents Grantslast 30 patents

Information Patent Grant
Outer-diameter blade, inner-diameter blade, core drill and processi...
- Patent number 6,595,844
- Issue date Jul 22, 2003
- Atock Co., Ltd.
- Toru Mizuno
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Outer-diameter blade, inner-diameter blade, core drill and processi...
- Patent number 6,595,845
- Issue date Jul 22, 2003
- Atock Co., Ltd.
- Toru Mizuno
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Outer-diameter blade, inner-diameter blade, core drill and processi...
- Patent number 6,203,416
- Issue date Mar 20, 2001
- Atock Co., Ltd.
- Toru Mizuno
- B28 - WORKING CEMENT, CLAY, OR STONE