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. 25, 1980
Filed:
Sep. 24, 1975
Applicant:
Inventors:
Assignee:
Nippon Steel Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427226 ; 72 42 ; 148-616 ; 427229 ;
Abstract
A complex film is formed on a steel sheet by coating thereto an aqueous solution of ammonium phosphate, ammonium molybdate, nickel aceptate, etc., heating the same and further coating a lubrication oil containing an animal or vegetable oil or fat or a mineral oil with a high molecular compound and a higher fatty acid, whereby a steel sheet showing excellent lubricity in ironing is given. The effect can be improved by adding cobalt, nickel, chrome salts to the aqueous solutions.
Asano, Hidejiro. (1980). Method for the manufacture of a steel sheet adapted for use in ironing (U.S. Patent No. 4235947). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4235947
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