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:
Oct. 16, 2018

Filed:

Nov. 24, 2015
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Inventors:

Hirofumi Inoshita, Nagoya, JP;

Akinori Tomioka, Nagoya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 53/02 (2006.01); B21H 7/00 (2006.01); H01L 21/48 (2006.01); H01L 23/367 (2006.01); B21J 5/00 (2006.01); B21K 23/00 (2006.01); F28F 3/02 (2006.01);
U.S. Cl.
CPC ...
B21D 53/022 (2013.01); B21H 7/00 (2013.01); B21J 5/008 (2013.01); B21K 23/00 (2013.01); H01L 21/4882 (2013.01); H01L 23/3677 (2013.01); F28F 3/022 (2013.01); F28F 2255/00 (2013.01); H01L 2924/0002 (2013.01);
Abstract

A pin fin forming method is a method of forming a plurality of pin fins on a surface of a metal plate by subjecting the metal plate to extrusion using a die having a plurality of through-holes and a roll. The pin fin forming method includes placing the metal plate between the die and the roll, and pressing the metal plate from a first end of the metal plate to a second end of the metal plate, by moving the roll relative to the die. The metal plate is pressed from the first end of the metal plate to the second end of the metal plate, in a state where a side surface of the second end of the metal plate and an upper surface of the second end of the metal plate are fixed.


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