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. 04, 2008
Filed:
Oct. 17, 2003
Zinc hot dip galvanized steel plate excellent in press formability and method for production thereof
Shoichiro Taira, Tokyo, JP;
Masaki Tada, Tokyo, JP;
Yoshiharu Sugimoto, Tokyo, JP;
Masayasu Nagoshi, Tokyo, JP;
Takashi Kawano, Tokyo, JP;
Etsuo Hamada, Tokyo, JP;
Satoru Ando, Tokyo, JP;
Shinji Ootsuka, Tokyo, JP;
Masaaki Yamashita, Tokyo, JP;
Shoichiro Taira, Tokyo, JP;
Masaki Tada, Tokyo, JP;
Yoshiharu Sugimoto, Tokyo, JP;
Masayasu Nagoshi, Tokyo, JP;
Takashi Kawano, Tokyo, JP;
Etsuo Hamada, Tokyo, JP;
Satoru Ando, Tokyo, JP;
Shinji Ootsuka, Tokyo, JP;
Masaaki Yamashita, Tokyo, JP;
JFE Steel Corporation, Tokyo, JP;
Abstract
A hot-dip galvanized steel sheet includes a plating layer substantially composed of the η phase and an oxide layer disposed on a surface of the plating layer. The oxide layer has an average thickness of 10 nm or more and includes a Zn-based oxide layer and an Al-based oxide layer. A method for producing the hot-dip galvanized steel sheet includes a hot-dip galvanization step, a temper rolling step, and an oxidation step.