Film production method and film production device

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United States of America Patent

PATENT NO 10177358
APP PUB NO 20170307971A1
SERIAL NO

15517818

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Abstract

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A method for film production includes the steps of obtaining information on the position of a defect (D) in a separator (12a) and providing marks (LA, LB) at the respective positions in the vicinity of the defect (D), the marks indicating the position of the defect.

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Patent Owner(s)

  • SUMITOMO CHEMICAL COMPANY, LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kashu, Koji Niihama, JP 20 23
Kon, Yusuke Daegu, KR 13 12
Sakamoto, Tatsuya Niihama, JP 33 312
Wang, Jian Daegu, KR 1690 15934

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