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Sadamu Hirakawa
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Chiba, JP
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last 30 patents
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Patent Grant
Polyolefin resin composition
Patent number
6,448,357
Issue date
Sep 10, 2002
Mitsui Chemicals, Inc.
Naoshi Hamada
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Sealant resin composition for use in retort film and sealant film
Patent number
6,110,549
Issue date
Aug 29, 2000
Mitsui Chemicals Inc.
Naoshi Hamada
B32 - LAYERED PRODUCTS
Information
Patent Grant
Method of molding a fuel tank having baffle plates
Patent number
5,308,573
Issue date
May 3, 1994
Mitsui Petrochemical Industries, Ltd.
Sadamu Hirakawa
B60 - VEHICLES IN GENERAL