Method of drawn and ironed processing of resin coated metal sheet and resin coated drawn and ironed can produced thereby

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7878040
APP PUB NO 20090013751A1
SERIAL NO

11661687

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method of drawn and ironed processing of a resin coated metal sheet, in which in the drawn and ironed processing of resin coated metal sheet, there can be obtained a can body of satisfactorily small wall thickness and at an opening edge part of the can body, the coating resin is free from any defect; and a resin coating drawn and ironed processed can produced thereby.There is provided a method of drawn and ironed processing of a resin coated metal sheet, comprising performing drawn and ironed processing of a resin coated metal sheet composed of a metal sheet having at least one major surface thereof coated with an organic resin with the use of a punch and a die into a can body, characterized in that ironing is conducted with the use of a punch having a small-diameter portion at its rear end so that the ratio of ironing at an opening edge part of the can body after shaping falls within the range of 0 to 15%. Further, there is provided a drawn and ironed processed can of resin coated metal sheet produced through the processing method.

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Patent Owner(s)

Patent OwnerAddress
TOYO SEIKAN GROUP HOLDINGS LTDJAPAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kai, Masahiro Yamaguchi, JP 3 19
Saiki, Norihito Kanagawa, JP 4 48
Tanabe, Junichi Yamaguchi, JP 56 2005
Taya, Shinichi Yamaguchi, JP 10 38
Tutsumi, Etsuro Yamaguchi, JP 1 9

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