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by Nobuko Makishima legal representative
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Tokyo, JP
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last 30 patents
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Patent Grant
Process for producing a modified styrene polymer
Patent number
4,912,170
Issue date
Mar 27, 1990
Toa Nenryo Kogyo K.K.
Tadashi Niwa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Block copolymer containing block from tetrahydrofuran
Patent number
4,801,654
Issue date
Jan 31, 1989
Toa Nenryo Kogyo K.K.
Tokuo Makishima
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Block copolymer containing tetrahydrofuran block
Patent number
4,705,830
Issue date
Nov 10, 1987
Toa Nenryo Kogyo Kabushiki Kaisha
Tokuo Makishima
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...