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:
Jan. 15, 2019
Filed:
Sep. 28, 2016
Applicant:
Dowa Metaltech Co., Ltd., Tokyo, JP;
Inventors:
Tomotsugu Aoyama, Tokyo, JP;
Akira Sugawara, Tokyo, JP;
Assignee:
DOWA METALTECH CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B 3/00 (2006.01); C22C 9/02 (2006.01); C22F 1/08 (2006.01); F28F 21/08 (2006.01); H01L 21/48 (2006.01); H01L 23/367 (2006.01); H01L 23/373 (2006.01);
U.S. Cl.
CPC ...
F28F 21/085 (2013.01); B21B 3/00 (2013.01); C22C 9/02 (2013.01); C22F 1/08 (2013.01); H01L 21/4878 (2013.01); H01L 23/367 (2013.01); H01L 23/3736 (2013.01); B21B 2003/005 (2013.01); B21B 2261/22 (2013.01);
Abstract
A method for producing a heat radiating plate, the method containing the steps of: finish cold-rolling an annealed material to obtain a strip; causing the strip to wind in the shape of a coil to prepare a coil stock; unwinding the coil stock by means of an uncoiler to obtain a strip; causing the strip to pass through a gap between the rolls of a leveler to correct the shape thereof; progressively feeding the corrected strip to a progressive die via a feeder to progressively press-working the strip to produce a heat radiating plate.