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:
May. 05, 2009
Filed:
Sep. 06, 2007
Nobue Fujibayashi, Kanagawa, JP;
Akira Matsuzaki, Chiba, JP;
Satoru Ando, Hiroshima, JP;
Syuji Nomura, Hiroshima, JP;
Takahiro Kubota, Hiroshima, JP;
Yoshikazu Morohoshi, Kanagawa, JP;
Takashi Nakano, Kanagawa, JP;
Takashi Okubo, Kanagawa, JP;
Jun Akui, Kanagawa, JP;
Nobue Fujibayashi, Kanagawa, JP;
Akira Matsuzaki, Chiba, JP;
Satoru Ando, Hiroshima, JP;
Syuji Nomura, Hiroshima, JP;
Takahiro Kubota, Hiroshima, JP;
Yoshikazu Morohoshi, Kanagawa, JP;
Takashi Nakano, Kanagawa, JP;
Takashi Okubo, Kanagawa, JP;
Jun Akui, Kanagawa, JP;
JFE Steel Corporation, Tokyo, JP;
Kansai Paint Co., Ltd., Amagasaki-Shi, JP;
Abstract
A surface-treated steel sheet is disclosed, including a zinc based plated steel sheet having thereon a surface-treated film containing titanium, nickel, aluminum and fluorine and having a film thickness of from 0.05 to 1.0 μm, the surface-treated film having a titanium deposition amount of from 0.01 to 0.5 g/mand containing from 0.01 to 5 parts by mass of nickel, from 0.1 to 25 parts by mass of aluminum and from 1 to 500 parts by mass of fluorine relative to 100 parts by mass of titanium. This surface-treated steel sheet does not contain hexavalent chromium in the film thereof at all and has excellent heat discoloration resistance, corrosion resistance and resistance to blackening.