Patents by Inventor Naomasa Masuda

Naomasa Masuda 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).

  • Cassette tape device
    Patent number: 4351498
    Abstract: A cassette tape device includes a tape drive mechanism provided to move between a play position in which the tape is advanced and a release position in which the tape is stopped and released from any tension, a detector for detecting whether or not the tape is driven, a latch element provided for prohibiting the advance of the tape when the tape drive mechanism is in the release position and for allowing the tape to advance when the tape drive mechanism is in the play position, shifting mechanism for shifting the tape drive mechanism from the release position to play position when the detector detects that the tape is not advancing, and retaining member for retaining the tape drive mechanism in the play position.
    Type: Grant
    Filed: September 19, 1980
    Date of Patent: September 28, 1982
    Assignees: Sanyo Electric Co., Ltd., Tottori Sanyo Electric Co., Ltd.
    Inventors: Mitsuo Iwata, Naomasa Masuda, Hideki Uraki, Kunio Tsuchino