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Tsuyoshi Aoyama
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Houya, JP
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last 30 patents
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Patent Grant
Rubber modified asphalt type of water-proofing compositions
Patent number
5,891,224
Issue date
Apr 6, 1999
Obayashi Corporation
Tsuyoshi Aoyama
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Rubber modified asphalt type of water-proofing compositions
Patent number
5,866,211
Issue date
Feb 2, 1999
Obayashi Corporation
Tsuyoshi Aoyama
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Rubber modified asphalt type of water-proofing composition
Patent number
5,674,313
Issue date
Oct 7, 1997
Obayashi Corporation
Tsuyoshi Aoyama
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for fabricating fiber-reinforced slag gypsum cement-based, l...
Patent number
5,366,549
Issue date
Nov 22, 1994
Kyowa Giken Co., Ltd.
Shokichi Imaizumi
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Flame retardant coating compositions and coated articles
Patent number
5,283,279
Issue date
Feb 1, 1994
Shin-Etsu Chemical Co., Ltd.
Yasuaki Hara
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Exposed aggregate finishing method for concrete
Patent number
4,205,040
Issue date
May 27, 1980
Ohbayashi-Gumi, Ltd.
Tsuyoshi Aoyama
B28 - WORKING CEMENT, CLAY, OR STONE