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:
Dec. 14, 2021

Filed:

Jan. 13, 2020
Applicant:

Mazda Motor Corporation, Hiroshima, JP;

Inventors:

Yuri Takahashi, Hiroshima, JP;

Takeshi Matsuda, Hiroshima, JP;

Kenji Nakamura, Higashihiroshima, JP;

Chie Okawa, Hiroshima, JP;

Ichirou Ino, Hiroshima, JP;

Naoyuki Irie, Hatsukaichi, JP;

Assignee:

MAZDA MOTOR CORPORATION, Hiroshima, JP;

Attorney:
Primary Examiner:
Assistant 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 lower mold includes: refrigerant ejection ports in its press-molding surface; and three or more independent refrigerant guide grooves extending in the press-molding surface from the refrigerant ejection ports to guide the refrigerant ejected from the refrigerant ejection port to an outer portion of the press-molding surface with the refrigerant being in contact with a workpiece. Each of the refrigerant guide grooves neither branches halfway nor merges with the others of the refrigerant guide grooves to extend from the refrigerant ejection ports to the outer portion of the press-molding surface.


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