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:
Apr. 12, 2011
Filed:
Mar. 26, 2008
Masayoshi Uehira, Osaka, JP;
Yuzo Nakatsuka, Tachikawa, JP;
Masayoshi Uehira, Osaka, JP;
Yuzo Nakatsuka, Tachikawa, JP;
Konica Minolta Opto, Inc., Tokyo, JP;
Abstract
A method of forming an optical element forming metal mold to form an optical element, having steps of: laminating a heat insulation layeron a surface of the base memberwhere the optical element is formed; laminating an intermediate metal layeron a surface of the heat insulation layerby thermal spraying; laminating a surface forming layer, on which a surface shape to be transferred to the optical element is formed, on the intermediate metal layer; wherein the intermediate metal layeris laminated in a way that parts of the heat insulation layerare exposed substantially evenly from the intermediate layer