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.

Date of Patent:
Sep. 12, 2023

Filed:

Feb. 12, 2021
Applicant:

Sumitomo Heavy Industries, Ltd., Tokyo, JP;

Inventors:

Kei Yamauchi, Ehime, JP;

Eiji Kouyama, Ehime, JP;

Kiyomasa Koukami, Ehime, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 26/10 (2006.01); B21D 26/041 (2011.01);
U.S. Cl.
CPC ...
B21D 26/10 (2013.01); B21D 26/041 (2013.01);
Abstract

An expansion forming apparatus that shapes a metal material with a die includes an electrode that comes into contact with the metal material and performs energization heating, and an electrode mounting unit having an electrode movement actuator that moves the electrode along an extension direction of the metal material during heating.


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