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:
Dec. 18, 2012
Filed:
Nov. 05, 2007
Yasuhiro Matsumoto, Okazaki, JP;
Yasuhiro Matsumoto, Okazaki, JP;
Konica Minolta Opto, Inc., Tokyo, JP;
Abstract
There are provided a method of manufacturing a metal mold suitable for forming, for example, a reflection mirror for a projection optical system and a reflection mirror for the projection optical system manufactured by the method thereof. The method includes a first process of cutting or grinding a metal mold material MM to trim the shape of the transfer optical surface and a second process of radiating the electron beam onto the transfer optical surface so as to perform smoothing process. By radiation of the electron beam, tool makes and the like created on the metal mold material MM in the first process can be erased so that the surface can be smoothed while maintaining the shape of the transfer optical surface.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile