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Hiroyuki IKAWA
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Tsukuba-shi, Ibaraki, JP
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Patents Grants
last 30 patents
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Patent Grant
Method for producing honeycomb structure, jig, and honeycomb structure
Patent number
9,782,912
Issue date
Oct 10, 2017
Sumitomo Chemical Company, Limited
Masashi Inoue
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Method for producing honeycomb structures
Patent number
9,700,820
Issue date
Jul 11, 2017
Sumitomo Chemical Company, Limited
Hiroyuki Ikawa
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Particulate filter
Patent number
D733276
Issue date
Jun 30, 2015
Sumitomo Chemical Company, Limited
Masashi Inoue
D23 - Environmental heating and cooling
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR PRODUCING HONEYCOMB STRUCTURES AND CLOSING TOOL FOR GREE...
Publication number
20160271831
Publication date
Sep 22, 2016
Sumitomo Chemical Company, Limited
Masashi INOUE
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Application
METHOD FOR PRODUCING HONEYCOMB STRUCTURES
Publication number
20160263507
Publication date
Sep 15, 2016
Sumitomo Chemical Company, Limited
Hiroyuki IKAWA
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Application
METHOD FOR PRODUCING HONEYCOMB STRUCTURES
Publication number
20160185010
Publication date
Jun 30, 2016
Sumitomo Chemical Company, Limited
Hiroyuki IKAWA
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Application
METHOD FOR PRODUCING HONEYCOMB STRUCTURE, JIG, AND HONEYCOMB STRUCTURE
Publication number
20160158965
Publication date
Jun 9, 2016
SUMITOMO CHEMICAL COMPANY, LIMTED
Masashi INOUE
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Application
METHOD FOR PRODUCING HONEYCOMB STRUCTURES AND CLOSING TOOL FOR GREE...
Publication number
20160136842
Publication date
May 19, 2016
Sumitomo Chemical Company, Limited
Masashi INOUE
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
METHOD FOR MANUFACTURING HONEYCOMB STRUCTURE
Publication number
20150376072
Publication date
Dec 31, 2015
Sumitomo Chemical Company, Limited
Masashi INOUE
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES