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:
Nov. 25, 2025
Filed:
Mar. 26, 2019
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Takeshi Yamada, Tokyo, JP;
Akira Kono, Tokyo, JP;
Atsushi Sugai, Tokyo, JP;
Yu Matsunaga, Tokyo, JP;
Takeshi Hoshino, Tokyo, JP;
Shota Hosoi, Tokyo, JP;
Suguru Kondo, Tokyo, JP;
Satoshi Kamata, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Toyko, JP;
Abstract
A workpiece processing method includes: a section roll forming step of subjecting a flat plate shaped workpiece to forming to impart a prescribed cross-sectional shape thereto; a solution heat treatment step of subjecting the workpiece, after the section roll forming step has been performed, to solution heat treatment; a contour roll forming step of subjecting the workpiece, after the solution heat treatment step has been performed, to forming to bend the workpiece into an arcuate shape; and a stretch forming step of subjecting the workpiece, after the contour roll forming step has been performed, to forming to impart a curved shape, following a curved surface of a die, to the workpiece by bringing the workpiece into contact with the curved surface and inputting a tension load to the workpiece.