AOI Chemical Inc.

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Shiroshima, JP

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Patents Grantslast 30 patents

Information Patent Grant
Sealant injection method and an apparatus therefor
- Patent number 4,986,862
- Issue date Jan 22, 1991
- AOI Chemical Inc.
- Takayoshi Matsufuru
- E04 - BUILDING
Information Patent Grant
Method for manufacture of waterproof fibrous plate
- Patent number 4,587,070
- Issue date May 6, 1986
- Aoi Chemical, Inc.
- Hajime Niwa
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Concrete joint sealant plate and process for manufacturing thereof
- Patent number 4,464,424
- Issue date Aug 7, 1984
- Aoi Chemical, Inc.
- Hazime Niwa
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Concrete joint sealant
- Patent number 4,374,946
- Issue date Feb 22, 1983
- Aoi Chemical Inc.
- Yoshifumi Takemura
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Concrete joint sealant
- Patent number 4,288,354
- Issue date Sep 8, 1981
- AOI Chemical Inc.
- Kiyozo Shiomoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

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