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:
Mar. 06, 2007
Filed:
Jan. 30, 2004
Hiroki Nakamaru, Fukuyama, JP;
Yuuzo Ootuka, Chiba, JP;
Takeshi Sakuma, Chiba, JP;
Hiroyuki Ogata, Kawasaki, JP;
Shigeru Umino, Chiba, JP;
Chiyoko Tada, Chiba, JP;
Hiroki Nakamaru, Fukuyama, JP;
Yuuzo Ootuka, Chiba, JP;
Takeshi Sakuma, Chiba, JP;
Hiroyuki Ogata, Kawasaki, JP;
Shigeru Umino, Chiba, JP;
Chiyoko Tada, Chiba, JP;
JFE Steel Corporation, Tokyo, JP;
Abstract
A black galvanized steel sheet including a composite coating layer formed on a surface of a blackened galvanized steel sheet by applying a treatment solution containing a phosphate ion, a vanadate ion, a metal ion, an α,β-unsaturated carboxylic acid and a glycoluril resin; and an organic resin layer formed on the composite coating layer, is provided. The black galvanized steel sheet is excellent in heat absorption and heat dissipation, electrical conductance, and corrosion resistance in a worked portion. Furthermore, the black galvanized steel sheet does not include hexavalent chromium.