Patents by Inventor Kazuhirio Satoh

Kazuhirio Satoh 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).

  • Driving apparatus and driving method of light emitting display panel
    Publication number: 20060176253
    Abstract: A measurement current whose value is lower compared to a light emission drive current If for allowing light emitting elements to emit light for display is supplied to an anode line, and a forward voltage value of the light emitting element of this time is obtained by a sample and hold circuit. This information is sent to a light emission control circuit, and the light emission control circuit obtains information corresponding to a forward voltage value of the light emitting element of when the light emission drive current is supplied to the light emitting element, out of a data table 11, based on information of the forward voltage value Vs. The output voltage VH of a DC-DC converter is controlled based on the information of this forward voltage value Vf.
    Type: Application
    Filed: February 2, 2006
    Publication date: August 10, 2006
    Applicant: TOHOKU PIONEER CORPORATION
    Inventors: Naoki Yazawa, Kazuhirio Satoh, Shinobu Adachi, Toshihiko Aoki