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:
Sep. 06, 2011
Filed:
Apr. 13, 2005
Toshiro Kinoshita, Tokyo, JP;
Masayuki Taniguchi, Tokyo, JP;
Hiroshi Umeyama, Saitama, JP;
Takeshi Yamasaki, Yokohama, JP;
Tomomi Yukumoto, Chiba, JP;
Toshiro Kinoshita, Tokyo, JP;
Masayuki Taniguchi, Tokyo, JP;
Hiroshi Umeyama, Saitama, JP;
Takeshi Yamasaki, Yokohama, JP;
Tomomi Yukumoto, Chiba, JP;
Toppan Printing Co., Ltd., Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
An optical disc () includes a substrate (), which is formed from either a resin-impregnated paper produced by impregnating a paper with a resin, or a resin-coated paper produced by coating a surface of a paper with a resin, and a recording layer (), wherein the resin contains at least one resin selected from the group consisting of polycarbonates, bisphenol A epoxy resins, copolymers of methyl methacrylate and styrene, and copolymers of acrylonitrile and styrene. Furthermore, a method of manufacturing an optical disc () includes: providing a recording layer sheet by forming tracks on a recording base material; and bonding the recording layer sheet to a resin-impregnated paper or a resin-coated paper, thereby providing a recording layer () formed from the recording layer sheet on the substrate ().