The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 09, 2013
Filed:
Nov. 04, 2005
Hidekazu Tomaru, Yokohama, JP;
Shinichi Taya, Kudamatsu, JP;
Masahiro Kai, Kudamatsu, JP;
Junichi Tanabe, Kudamatsu, JP;
Etsuro Tsutsumi, Kudamatsu, JP;
Norihito Saiki, Yokohama, JP;
Hidekazu Tomaru, Yokohama, JP;
Shinichi Taya, Kudamatsu, JP;
Masahiro Kai, Kudamatsu, JP;
Junichi Tanabe, Kudamatsu, JP;
Etsuro Tsutsumi, Kudamatsu, JP;
Norihito Saiki, Yokohama, JP;
Toyo Kohan Co., Ltd., Tokyo, JP;
Toyo Seikan Kaisha, Ltd., Tokyo, JP;
Abstract
A method of drawing and ironing a resin film laminated metal sheet for forming a can body having a bottom portion, a can wall portion and a flange-forming portion by drawing the resin film laminated metal sheet obtained by laminating at least one surface of a metal sheet with an organic resin film, followed by ironing by using a punch and a plurality of dies neighboring each other. The can wall is effectively prevented from being broken by a decrease in the thickness of the can wall, and drawn and ironed cans are efficiently formed having a thickness which is decreased as designed.