Patents by Inventor Katsuhiko Yaguchi

Katsuhiko Yaguchi 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 changer for tape player
    Patent number: 5115362
    Abstract: A novel cassette changer for a tape player wherein a tape cassette accommodating member and a tape driving mechanism are fixed relative to each other during selection of a tape cassette and which has a comparatively small overall size and requires a comparatively low power for moving a tape cassette between the tape cassette accommodating member and tape driving mechanism.
    Type: Grant
    Filed: February 2, 1990
    Date of Patent: May 19, 1992
    Assignee: Pioneer Electronic Corporation
    Inventors: Tamotsu Harada, Gen Kumagai, Kiyoshi Yanagida, Katsuhiko Yaguchi, Nagaki Fujioka, Akiharu Yagi, Koji Yanoguchi, Satoru Kodaira
  • Frequency/voltage conversion circuit
    Patent number: 4446439
    Abstract: A frequency/voltage conversion circuit is provided with a detection circuit for determining when the input frequency rises above a predetermined level which threatens to inhibit operation of flip-flop devices in the circuit. In response to the detection, a capacitor of a first charging/discharging circuit is forcibly charged to a value above a predetermined level.
    Type: Grant
    Filed: March 11, 1982
    Date of Patent: May 1, 1984
    Assignee: Pioneer Electronic Corporation
    Inventors: Kastuji Mizumoto, Katsuhiko Yaguchi