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Chiuhei Otsuki
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Kanagawa, JP
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last 30 patents
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Patent Grant
Hollow fiber having inner wall into which comb polymer is introduce...
Patent number
7,718,260
Issue date
May 18, 2010
Mitsubishi Rayon Co., Ltd.
Chiuhei Otsuki
G01 - MEASURING TESTING
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last 30 patents
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Patent Application
Hollow fiber having inner wall into which comb polymer is introduce...
Publication number
20040258897
Publication date
Dec 23, 2004
Chiuhei Otsuki
G01 - MEASURING TESTING