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. 27, 2010
Filed:
Jan. 30, 2004
Toshiro Kinoshita, Tokyo, JP;
Akihiko Kobayashi, Saitama, JP;
Noboru Sasaki, Fukuoka, JP;
Makoto Arisawa, Asaka, JP;
Hiroshi Iwase, Oumihachiman, JP;
Mamoru Sekiguchi, Kawaguchi, JP;
Hiroshi Ogawa, Yokohama, JP;
Yoshimori Yamasaki, Kawasaki, JP;
Kiyoshi Osato, Chiba, JP;
Masanobu Yamamoto, Yokohama, JP;
Toshiyuki Kashiwagi, Tokyo, JP;
Toshiro Kinoshita, Tokyo, JP;
Akihiko Kobayashi, Saitama, JP;
Noboru Sasaki, Fukuoka, JP;
Makoto Arisawa, Asaka, JP;
Hiroshi Iwase, Oumihachiman, JP;
Mamoru Sekiguchi, Kawaguchi, JP;
Hiroshi Ogawa, Yokohama, JP;
Yoshimori Yamasaki, Kawasaki, JP;
Kiyoshi Osato, Chiba, JP;
Masanobu Yamamoto, Yokohama, JP;
Toshiyuki Kashiwagi, Tokyo, JP;
Toppan Printing Co., Ltd., Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
An optical disk () of the present invention has a substrate () included a resin-impregnated paper, in which resin is impregnated into paper, or resin-coated paper, in which the paper surface is coated with a resin, and a recording layer () formed on at least one side of the substrate (). This type of optical disk () has performance equal to that of conventional optical disks and has a minimal effect on the environment during disposal. In addition, a manufacturing method of an optical disk of the present invention has a recording layer sheet fabrication step in which a recording layer sheet is fabricated by forming tracks on a recording layer base material, and a recording layer sheet lamination step in which a recording layer () included the recording layer sheet is provided on a substrate () included resin-impregnated paper or resin-coated paper by laminating the recording layer sheet with the resin-impregnated paper in which a resin is impregnated into paper or the resin-coated paper in which the surface of the paper is coated with a resin. This type of manufacturing method of an optical disk allows optical disk () to be produced inexpensively.