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:
Jul. 21, 2015
Filed:
May. 16, 2011
Kishiro Abe, Ayase, JP;
Takamitsu Takano, Ayase, JP;
Koji Takeuchi, Ayase, JP;
Katsuki Kato, Atsugi, JP;
Takayuki Nonaka, Tahara, JP;
Satoru Miyashita, Ebina, JP;
Tsuneo Watanabe, Ayase, JP;
Kenji Taguchi, Chigasaki, JP;
Akira Nakamura, Ayase, JP;
Yuji Iwakura, Toyokawa, JP;
Kishiro Abe, Ayase, JP;
Takamitsu Takano, Ayase, JP;
Koji Takeuchi, Ayase, JP;
Katsuki Kato, Atsugi, JP;
Takayuki Nonaka, Tahara, JP;
Satoru Miyashita, Ebina, JP;
Tsuneo Watanabe, Ayase, JP;
Kenji Taguchi, Chigasaki, JP;
Akira Nakamura, Ayase, JP;
Yuji Iwakura, Toyokawa, JP;
Topy Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A method of manufacturing a tubular member having a non-constant thickness by ironing at least a portion of the tubular material. The ironing apparatus can have a punch and a die, and the die can have a convex and concave side surface opposing the punch. The method can include bending an axial end portion of the tubular material to form a bent portion. The tubular material can then axially engage the die at the bent portion, and then the punch can be moved relative to the die to iron at least a portion of the tubular material.