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:
Feb. 10, 2026

Filed:

Mar. 19, 2021
Applicant:

Nippon Steel Corporation, Tokyo, JP;

Inventors:

Naruhiko Nomura, Tokyo, JP;

Toshiya Suzuki, Tokyo, JP;

Kenta Uenishi, Tokyo, JP;

Tohru Yoshida, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 37/16 (2006.01); B21D 22/02 (2006.01);
U.S. Cl.
CPC ...
B21D 37/16 (2013.01); B21D 22/022 (2013.01);
Abstract

A die includes a die body and a removable shell. The die body includes a supply flow channel formed inside the die body. One end of the supply flow channel opens at the surface of the die body. The supply flow channel is to be supplied with a fluid for temperature adjustment. The removable shell is mounted removably to the surface of the die body. The removable shell includes an outer surface that constitutes at least a part of the forming surface of the die. A temperature adjustment space is provided in the surface of the die body or in the removable shell. The temperature adjustment space is in communication with the supply flow channel. The removable shell is divided into a plurality of shell pieces. The plurality of shell pieces are arranged in a direction intersecting the longitudinal direction of the die on the surface of the die body.


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