Koji Watanabe

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Kiyose-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Measuring apparatus and measuring method for concrete-forming mater...
- Patent number 7,735,356
- Issue date Jun 15, 2010
- Obayashi Corporation
- Shigeyuki Sogo
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Measuring apparatus and measuring method for concrete-forming mater...
- Patent number 7,578,207
- Issue date Aug 25, 2009
- Obayashi Corporation
- Shigeyuki Sogo
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Device and method for weighing concrete material
- Patent number 7,207,212
- Issue date Apr 24, 2007
- Obayashi Corporation
- Shigeyuki Sogo
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Weighing equipment for concrete material
- Patent number 7,000,458
- Issue date Feb 21, 2006
- Obayashi Corporation
- Shigeyuki Sogo
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Measuring apparatus and measuring method for concrete-forming mater...
- Publication number 20070186697
- Publication date Aug 16, 2007
- Shigeyuki Sogo
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
Measuring apparatus and measuring method for concrete-forming mater...
- Publication number 20070163333
- Publication date Jul 19, 2007
- Shigeyuki Sogo
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
Weighing equipment for concrete material
- Publication number 20050073904
- Publication date Apr 7, 2005
- Shigeyuki Sogo
- G01 - MEASURING TESTING
Information Patent Application
Device and method for weighing concrete material
- Publication number 20040133383
- Publication date Jul 8, 2004
- Shigeyuki Sogo
- B28 - WORKING CEMENT, CLAY, OR STONE