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Toshiro Kojima
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Ibaraki, JP
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last 30 patents
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Crystalline polypropylene and crystalline polypropylene composition
Patent number
5,141,994
Issue date
Aug 25, 1992
Sumitomo Chemical Co., Ltd.
Masahiro Kakugo
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...