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:
Jun. 23, 2015

Filed:

Dec. 13, 2013
Applicant:

Topre Corporation, Tokyo, JP;

Inventor:

Masanori Kobayashi, Kanagawa, JP;

Assignee:

Topre Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 37/16 (2006.01); B21D 22/20 (2006.01);
U.S. Cl.
CPC ...
B21D 37/16 (2013.01); B21D 22/208 (2013.01);
Abstract

A hot-pressing device includes a forming surface having a shape corresponding to a predetermined shape into which a workpiece is to be formed and a plurality of coolant channels formed therein so as to be arranged side by side and each having an opening in a side surface thereof when the forming surface is viewed from above or below. The forming surface includes a plurality of grooves formed therein so as to correspond to the coolant channels, a plurality of connection holes formed in each of the grooves so as to be connected to one of the coolant channels corresponding to the groove, the connection holes having openings at positions separated from each other, and a first connection groove connecting a portion of one of the grooves located between two adjacent connection holes to another one of the grooves located adjacent to the one of the grooves.


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