Layers Improving Adhesion Between Layers [n0505] {g11b 7/256} Patents (Class G9B/7.185)
  • Patent number: 8012560
    Abstract: An optical disc (10) includes a substrate (11), 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 (13), 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 (20) 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 (13) formed from the recording layer sheet on the substrate (11).
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: September 6, 2011
    Assignees: Toppan Printing Co., Ltd., Sony Corporation
    Inventors: Toshiro Kinoshita, Masayuki Taniguchi, Hiroshi Umeyama, Takeshi Yamasaki, Tomomi Yukumoto