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:
Nov. 09, 2010
Filed:
Jan. 17, 2007
Minoru Fujita, Tokyo, JP;
Mikiharu Hibi, Tokyo, JP;
Minoru Fujita, Tokyo, JP;
Mikiharu Hibi, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A stamper is formed so that a thickness between a concave/convex pattern formation surface, where a concave/convex pattern is formed, and a rear surface gradually decreases in a predetermined area of the stamper. The predetermined area corresponds to an area where pressure is likely to be concentrated when the concave/convex pattern of the stamper is used to form a concave/convex pattern on a substrate. A method of forming a concave/convex pattern uses such stamper, and a method of manufacturing an information recording medium uses a concave/convex pattern formed by such method.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile