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. 06, 2007
Filed:
Feb. 14, 2003
Okai Kazuhisa, Tokyo, JP;
Akira Matsuzaki, Tokyo, JP;
Naoto Yoshimi, Tokyo, JP;
Takahiro Kubota, Tokyo, JP;
Masaaki Yamashita, Tokyo, JP;
Hisato Noro, Tokyo, JP;
Haruo Nakamichi, Tokyo, JP;
Kaoru Sato, Tokyo, JP;
Hiroyasu Matsuki, Hiratsuka, JP;
Reijiro Nishida, Hiratsuka, JP;
Masahiro Murata, Hiratsuka, JP;
Shoichi Tanaka, Hiratsuka, JP;
Yoshikazu Morohoshi, Hiratsuka, JP;
Shingo Amaki, Hiratsuka, JP;
Okai Kazuhisa, Tokyo, JP;
Akira Matsuzaki, Tokyo, JP;
Naoto Yoshimi, Tokyo, JP;
Takahiro Kubota, Tokyo, JP;
Masaaki Yamashita, Tokyo, JP;
Hisato Noro, Tokyo, JP;
Haruo Nakamichi, Tokyo, JP;
Kaoru Sato, Tokyo, JP;
Hiroyasu Matsuki, Hiratsuka, JP;
Reijiro Nishida, Hiratsuka, JP;
Masahiro Murata, Hiratsuka, JP;
Shoichi Tanaka, Hiratsuka, JP;
Yoshikazu Morohoshi, Hiratsuka, JP;
Shingo Amaki, Hiratsuka, JP;
JFE Steel Corporation, Tokyo, JP;
Kansai Paint Co., Ltd., Hyogo, JP;
Abstract
The invention is to provide a surface-treated steel sheet of good white rust resistance with no chromium in its surface treatment film, and it has realized a surface-treated steel sheet of higher-level corrosion resistance by forming a reaction layer of plating metal with a barrier layer effective for anticorrosion not in a two-layered film but in a single-layered film. The surface-treated steel sheet is fabricated by applying a surface-treating composition that contains: