Gravure roll, method of fabricating a separator, and separator

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United States of America Patent

PATENT NO 10403873
APP PUB NO 20160226047A1
SERIAL NO

14888115

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Abstract

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A gravure roll, in which the outside peripheral surface of a metal roll main body has a plurality of oblique line shaped protrusions forming a prescribed angle with the center axis of the roll main body and the coating liquid can be held in a plurality of oblique line shaped recesses formed between each of the plurality of protrusions, is configured such that the roll main body has a diamond-like carbon layer on the entire outer peripheral surface thereof, a head part for each of the plurality of protrusions is cut down, and each of the plurality of protrusions has a trapezoidal cross-sectional shape that becomes gradually narrower in width moving in direction toward the head part. A separator with a uniform weight per unit area can be manufactured wherein the coating liquid is coated onto a base material film using this gravure roll.

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO CHEMICAL COMPANY LIMITED27-1 SHINKAWA 2-CHOME CHUO-KU TOKYO 1048260

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kimura, Shinya Kawasaki, JP 34 297
Minemoto, Yasutoshi Ehime, JP 10 3
Wang, Jian Ehime, JP 1069 10121
Watanabe, Koichiro Ehime, JP 80 690

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