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:
Aug. 04, 2009
Filed:
Nov. 16, 2004
Tsukasa Morita, Ebina, JP;
Noriaki Kawauchi, Ebina, JP;
Toshihiro Seki, Oyama, JP;
Akihiko Satou, Yokohama, JP;
Tsukasa Morita, Ebina, JP;
Noriaki Kawauchi, Ebina, JP;
Toshihiro Seki, Oyama, JP;
Akihiko Satou, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
In a press-forming method, a plurality of plates are prepared and end faces of the plurality of plates are butt joined to obtain a blank having joined portions. The blank has deformed-shape sections formed in a vicinity of the joined portion so as to deform in a direction along which peripheral lengths of the deformed-shape sections are stretched. Press-forming, involving stretch-flange formation, is carried out on the blank so as to allow the joined portions to be included in stretching regions, respectively. Also, the stretch-flange formation is carried out on the blank while restraining ends of the joined portion of the blank.