Patents by Inventor Katsumi Hishiyama

Katsumi Hishiyama 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).

  • Display device
    Patent number: 8208272
    Abstract: A display device of the invention is provided with: a display panel; a lower frame that covers the lower side of the display panel, and includes a front wall and a bottom wall; a drain hole formed to the bottom wall; and a water-absorbing porous member provided to the inner surface of the bottom wall in such a manner as to cover the drain hole. With such a configuration, the resulting display device can swiftly drain any liquid entering inside thereof.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: June 26, 2012
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Nagatoshi Kurahashi, Tomohiro Maeyama, Katsumi Hishiyama
  • DISPLAY DEVICE
    Publication number: 20100246157
    Abstract: A display device of the invention is provided with: a display panel; a lower frame that covers the lower side of the display panel, and includes a front wall and a bottom wall; a drain hole formed to the bottom wall; and a water-absorbing porous member provided to the inner surface of the bottom wall in such a manner as to cover the drain hole. With such a configuration, the resulting display device can swiftly drain any liquid entering inside thereof.
    Type: Application
    Filed: February 5, 2010
    Publication date: September 30, 2010
    Inventors: Nagatoshi Kurahashi, Tomohiro Maeyama, Katsumi Hishiyama
  • Image control apparatus for a television receiver
    Patent number: 5272533
    Abstract: An image control apparatus includes a waveform equalizer, a distorted waveform extraction control unit, a noise reduction circuit, and an image quality control unit. The waveform equalizer receives an input video signal, equalizes the waveform of the video signal, and outputs the waveform equalized video signal. The distorted waveform extraction control unit detects a distorted waveform from the output of the waveform equalizer and controls the waveform equalizer to perform waveform equalization suitable for the input video signal.
    Type: Grant
    Filed: January 14, 1992
    Date of Patent: December 21, 1993
    Assignees: Hitachi, Ltd., Hitachi Video & Information System, Inc.
    Inventors: Moriyoshi Akiyama, Toshiyuki Kurita, Hiroshi Sekiya, Sunao Suzuki, Katsumi Hishiyama, Toshinori Murata