Patents by Inventor Hirayuki Tsujita

Hirayuki Tsujita 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).

  • Disc player having locking mechanism for pickup
    Patent number: 5012462
    Abstract: An improved disc player which is capable of preventing unnecessary movement of a pickup through simple construction so as to protect the pickup against any damage.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: April 30, 1991
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Hirayuki Tsujita