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:
Mar. 05, 2013
Filed:
Jul. 03, 2008
Hideyuki Miyahara, Nagano-ken, JP;
Hideyuki Miyahara, Nagano-ken, JP;
Nakamura Seisakusho Kabushikigaisha, Nagano, JP;
Abstract
A gouging tool is introduced at a slope angle θ to form small, low fins at a position shifted inward from an edge of a surface of a metal plate having a high coefficient of thermal conductivity; and the small fins are sequentially formed in a plural number at a fixed pitch until a blade section of the gouging tool reaches a prescribed depth. A fin formation step in which plate-shaped heat-radiating fins are integrally formed upright by the gouging tool is subsequently repeated in sequential manner following formation of the small fins, and the heat-radiating fins are continuously formed in a plural number in the metal plate. Heat-radiating fins of a heat radiator can be formed by a gouging tool without generating scrap.