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Hisayoshi Kikkawa
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Natori, JP
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Patents Grants
last 30 patents
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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
Patents Applications
last 30 patents
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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
Device and method for weighing concrete material
Publication number
20040133383
Publication date
Jul 8, 2004
Shigeyuki Sogo
B28 - WORKING CEMENT, CLAY, OR STONE