Liquid storage member for coating tools

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United States of America Patent

PATENT NO 11780258
APP PUB NO 20220355612A1
SERIAL NO

17624091

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Abstract

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Provided is a liquid storage member for coating tools which successfully reduces plastic consumption and reduces environmental loads, by making use of materials based on paper in place of plastics such as polypropylene that has been used for liquid (e.g., ink) storage members. A liquid storage member for coating tools having at least three layers of a paper base laminate composed of an inner layer made of paper base material, and a middle layer of a metal layer or a silica deposition layer, formed on the outer peripheral side of the inner layer; and an outer layer made of the paper base material formed on the outer peripheral side of the middle layer, wherein the paper base material of the inner layer has a density of 0.8 g/cm3 or more.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI PENCIL COMPANY LIMITED5-23-37 HIGASHI-OHI SHINAGAWA-KU TOKYO 1408537 ?1408537

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ichikawa, Shuji Tokyo, JP 36 219
Iimori, Takeshi Tokyo, JP 15 199
Kajiyama, Shinobu Tokyo, JP 1 0
Yamaguchi, Takayuki Osaka, JP 81 830

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