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:
Jan. 19, 2010
Filed:
Sep. 30, 2004
Shinya Sakamoto, Kimitsu, JP;
Yoshio Terada, Kimitsu, JP;
Motofumi Koyuba, Tokyo, JP;
Fumihiko Niiyama, Kimitsu, JP;
Eizaburo Nakanishi, Yokohama, JP;
Masamoto Ono, Zama, JP;
Shinya Sakamoto, Kimitsu, JP;
Yoshio Terada, Kimitsu, JP;
Motofumi Koyuba, Tokyo, JP;
Fumihiko Niiyama, Kimitsu, JP;
Eizaburo Nakanishi, Yokohama, JP;
Masamoto Ono, Zama, JP;
Nippon Steel Corporation, Tokyo, JP;
Abstract
An automobile strength member, having a cross-sectional shape giving a high bending repulsion at the beginning of impact and able to reduce the production cost and lighten the weight and achieve a greater improvement in safety and a reduction of cost of an automobile, that is, an automobile strength member comprised of a rectangular steel tube with a square cross-section, simultaneously satisfying the following relations (1) to (3), and having a strength of at least 690 MPa in terms of tensile strength:R≦1.5t  (1)t≧1.1t  (2)R≧R  (3)