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:
Apr. 09, 2024

Filed:

Jan. 27, 2020
Applicant:

Furukawa Techno Material Co., Ltd., Hiratsuka, JP;

Inventors:

Sumio Kise, Hiratsuka, JP;

Toyonobu Tanaka, Hiratsuka, JP;

Kenji Uruma, Hiratsuka, JP;

Kouji Ishikawa, Hiratsuka, JP;

Nanami Kataoka, Osaka, JP;

Shigekazu Yokoyama, Osaka, JP;

Toyohiko Higashida, Osaka, JP;

Yoshitaka Azuma, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B 35/00 (2006.01); B21H 3/02 (2006.01); C22C 9/05 (2006.01); C22F 1/08 (2006.01);
U.S. Cl.
CPC ...
F16B 35/00 (2013.01); B21H 3/02 (2013.01); C22C 9/05 (2013.01); C22F 1/08 (2013.01);
Abstract

A formed body of Cu—Al—Mn-based shape-memory alloy may include a screw portion, wherein the screw portion is a form-rolled portion. A method for producing a formed body of Cu—Al—Mn-based shape-memory alloy may involve forming a screw portion having superelasticity by plastically working at least a portion of a material for the formed body with form-rolling in a state that a crystal structure is an A2-type structure and then, subjecting heat-treatment so as to convert the A2-type crystal structure into an L-type crystal structure. The screw portion can be formed with good working property, and has excellent fatigue resistance and breaking resistance.


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