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:
Oct. 14, 2014
Filed:
Feb. 01, 2010
Masaaki Kondo, Nagoya, JP;
Shinichi Suzuki, Tokyo, JP;
Toshimasa Tomokiyo, Tokyo, JP;
Koichi Nishizawa, Tokyo, JP;
Takayuki Suzuki, Okazaki, JP;
Yuki Ishiguro, Chiryu, JP;
Hideyuki Kai, Nagoya, JP;
Masaaki Kondo, Nagoya, JP;
Shinichi Suzuki, Tokyo, JP;
Toshimasa Tomokiyo, Tokyo, JP;
Koichi Nishizawa, Tokyo, JP;
Takayuki Suzuki, Okazaki, JP;
Yuki Ishiguro, Chiryu, JP;
Hideyuki Kai, Nagoya, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Aisin Takaoka Co., Ltd., Aichi-ken, JP;
Abstract
A high-strength quenched formed article has a zinc plating layer which is formed at a post-quenching formed steel sheet surface, and which contains 30 g/mor more of a phase that contains 5% or more by mass but 30% or less by mass of Fe, and which also contains 0.15% or more by mass but less than 2% by mass of at least one of Al and Si in a separate fashion or a composite fashion, and contains Zn, which makes up substantially a rest portion of the zinc plating layer, and an inevitable impurity, wherein the high-strength quenched formed article has a high-strength portion having a post-quenching-formation tensile strength of 1000 MPa or more, and a low-strength portion having a post-quenching-formation tensile strength of 800 MPa or less.