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Tetsuya Hisayama
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Bartlesville, OK, US
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last 30 patents
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Patent Grant
High-rigidity ethylene/propylene block copolymer and process for th...
Patent number
6,204,336
Issue date
Mar 20, 2001
Sumitomo Chemical Company
Manabu Hirakawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...