Patents by Inventor Yoshifumi Katsuya

Yoshifumi Katsuya 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).

  • Publication number: 20040151078
    Abstract: In a recording medium such as a magneto-optical disc in which playback and recording data is managed with management information, the recording medium and recorded data are relieved by correcting or updating the management information. In a management information correction device for a recording medium, if an abnormality occurs in the management information of a recording medium, the user manipulates a management information correction/updating manipulation section 23 to output correction or updating instruction information. A management information correction/updating control section 22 corrects an abnormal portion of the current management information read from the recording medium and temporarily held in a management information holding section 19, by referring to management information in the initial state stored in a system controller 10.
    Type: Application
    Filed: January 22, 2004
    Publication date: August 5, 2004
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventor: Yoshifumi Katsuya