Patents by Inventor Yoshiaki Obama

Yoshiaki Obama 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 cassette loading apparatus
    Patent number: 4573093
    Abstract: In a floppy disc cassette loading apparatus, a cassette holder is moved between loading and unloading positions. In order to prevent an erroneous ejection of a floppy disc cassette from the cassette holder, a cassette ejection arm is unlocked after the cassette holder is lifted up to a predetermined position.
    Type: Grant
    Filed: August 5, 1982
    Date of Patent: February 25, 1986
    Assignee: Sony Corporation
    Inventors: Yoshiaki Obama, Shojiro Asami