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:
Nov. 11, 1997
Filed:
Sep. 07, 1994
Applicant:
Inventors:
Keiichi Shimizu, Hikari, JP;
Humio Kunishige, Kudamatsu, JP;
Junichi Tanabe, Yanai, JP;
Atsuo Tanaka, Tokuyama, JP;
Assignee:
Toyo Kohan Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428626 ; 428667 ; 428684 ; 428 358 ; 428141 ; 428215 ; 428337 ; 428458 ; 420-8 ; 420103 ; 420126 ; 420127 ;
Abstract
A laminated steel sheet for dry forming drawn and ironed cans wherein the steel sheet comprises a steel containing iron, carbon, manganese, aluminum, silicon, phosphorus, sulfur and optionally titanium and/or niobium and wherein the steel sheet is electrolytically chromium-coated and covered on both sides with a 10-50 .mu.m thick thermoplastic resin layer. The sheet sheet has a crystal grain size of 8-30 .mu.m, a surface roughness of 0.05-0.6 .mu.m and a thickness of 0.15-0.3 mm.