Patents by Inventor Koh Koyata

Koh Koyata 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).

  • Interface circuit and, electronic device and communication system provided with same
    Patent number: 6597229
    Abstract: An interface circuit includes a signal sending section having a first MOS transistor and a second MOS transistor which are alternately turned ON in accordance with a binary input signal. A signal receiving section has a third MOS transistor connected through a first signal transmission path to the first MOS transistor mounted in the signal sending section to feed a current with a predetermined value through the first signal transmission path when the first MOS transistor mounted in the signal sending section is turned ON. A fourth MOS transistor connected through a second signal transmission path to the second MOS transistor mounted in the signal sending section feeds a current with a predetermined value to the second signal transmission path when the second MOS transistor mounted in the signal sending section is turned ON.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: July 22, 2003
    Assignee: NEC Electronics Corporation
    Inventors: Koh Koyata, Masayuki Yamaguchi, Katsumi Abe, Akimitsu Tajima