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. 12, 2002
Filed:
Apr. 06, 1999
Hiroshi Maeda, Minamiashigara, JP;
Mamoru Fujisawa, Minamiashigara, JP;
Yoshikazu Hanada, Minamiashigara, JP;
Fuji Photo Film Co., Ltd., Kanagawa-Ken, JP;
Abstract
Heat sinks for semiconductor laser devices are manufactured by processing a surface of a panel into a mirror surface, forming a plurality of substantially parallel photomasks spaced at predetermined intervals on the mirror surface, etching the mirror surface through the photomasks to define grooves, the grooves and the mirror surface jointly providing edges therebetween, removing the photomasks from the panel, and thereafter, cutting the panel along the grooves into a plurality of heat sinks. Each of the heat sinks has a surface having a desired ultrahigh level of surface finish accuracy up its edge, and can be manufactured relatively inexpensively.