Takashi Sekijima

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Iida-City, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cutter wheel, manufacturing method for same, manual scribing tool a...
- Patent number 8,881,633
- Issue date Nov 11, 2014
- Mitsuboshi Diamond Industrial Co., Ltd.
- Haruo Wakayama
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Cutter wheel, manufacturing method for same, manual scribing tool a...
- Patent number 8,707,842
- Issue date Apr 29, 2014
- Mitsuboshi Diamond Industrial Co., Ltd.
- Haruo Wakayama
- B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents

Information Patent Application
CUTTER WHEEL, MANUFCTURING METHOD FOR SAME, MANUAL SCRIBING TOOL AN...
- Publication number 20110138986
- Publication date Jun 16, 2011
- Haruo Wakayama
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
Cutter Wheel, Manufacturing Method for Same, Manual Scribing Tool a...
- Publication number 20080022834
- Publication date Jan 31, 2008
- Haruo Wakayama
- B28 - WORKING CEMENT, CLAY, OR STONE