Patents by Inventor Katsuya Tonosaki

Katsuya Tonosaki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Recording medium and method for manufacturing recording medium
    Patent number: 8574699
    Abstract: A recording medium includes a substrate having a label-side surface on one side and a recording layer for recording and reproducing information on the other side. The label-side surface of the substrate has a mirror surface portion and a rough surface portion, a step having a step height of 10 ?m or less is formed between the mirror surface portion and the rough surface portion, and an average roughness of the rough surface portion is between 10 ?m and 2 ?m, inclusive. Visible information is formed on the label-side surface by using the mirror surface portion and the rough surface portion.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: November 5, 2013
    Assignee: Sony Corporation
    Inventors: Katsuya Tonosaki, Takeshi Gouko
  • RECORDING MEDIUM AND METHOD FOR MANUFACTURING RECORDING MEDIUM
    Publication number: 20120189799
    Abstract: A recording medium includes a substrate having a label-side surface on one side and a recording layer for recording and reproducing information on the other side. The label-side surface of the substrate has a mirror surface portion and a rough surface portion, a step having a step height of 10 ?m or less is formed between the mirror surface portion and the rough surface portion, and an average roughness of the rough surface portion is between 10 ?m and 2 ?m, inclusive. Visible information is formed on the label-side surface by using the mirror surface portion and the rough surface portion.
    Type: Application
    Filed: December 14, 2011
    Publication date: July 26, 2012
    Applicant: SONY CORPORATION
    Inventors: Katsuya Tonosaki, Takeshi Gouko