Patents by Inventor Toyohiko HIGASHIDA

Toyohiko HIGASHIDA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Formed body of Cu—Al—Mn-based shape-memory alloy and method for producing same
    Patent number: 11953047
    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 L21-type crystal structure. The screw portion can be formed with good working property, and has excellent fatigue resistance and breaking resistance.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: April 9, 2024
    Assignee: FURUKAWA TECHNO MATERIAL CO., LTD.
    Inventors: Sumio Kise, Toyonobu Tanaka, Kenji Uruma, Kouji Ishikawa, Nanami Kataoka, Shigekazu Yokoyama, Toyohiko Higashida, Yoshitaka Azuma
  • FORMED BODY OF Cu-Al-Mn-BASED SHAPE-MEMORY ALLOY AND METHOD FOR PRODUCING SAME
    Publication number: 20220120308
    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 L21-type crystal structure. The screw portion can be formed with good working property, and has excellent fatigue resistance and breaking resistance.
    Type: Application
    Filed: January 27, 2020
    Publication date: April 21, 2022
    Applicant: FURUKAWA TECHNO MATERIAL CO., LTD.
    Inventors: Sumio KISE, Toyonobu TANAKA, Kenji URUMA, Kouji ISHIKAWA, Nanami KATAOKA, Shigekazu YOKOYAMA, Toyohiko HIGASHIDA, Yoshitaka AZUMA