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:
Sep. 23, 2003
Filed:
May. 03, 2002
Hidetoshi Shindou, Hyogo, JP;
Kiyokazu Isizuka, Hyogo, JP;
Nippon Steel Corporation, Tokyo, JP;
Abstract
A galvanized steel plate for use in a vehicle body, having corrosion resistance and workability that are well-balanced and being suitable for outer plates of a vehicle body is provided. The plate includes a galvanized steel plate having a zinc coating plated on both surfaces thereof; a zinc phosphate coating layer formed on one of the surfaces of the plate that serves as an outer surface of a vehicle body; and a phosphate-containing composite coating formed on the other of the surfaces that serves as an inner surface of a vehicle body, the composite coating being composed of a zinc phosphate coating layer and a phosphate coating containing Mg. The phosphate-containing composite coating preferably contains 2 wt % or more of Mg, and is preferably applied in an amount greater than or equal to 0.5 g/m .