Patents by Inventor Takahiko Mutsukura

Takahiko Mutsukura 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).

  • Pixel circuit, image display device and drive method for the same, and electronic device
    Patent number: 7830342
    Abstract: A pixel circuit is disclosed. The pixel circuit includes, at least a drive transistor; an input transistor; a first switching transistor; a second switching transistor; a retention capacity; and an electro-optic device. The retention capacity is connected, at both ends, to a gate node and a source node, respectively, of the drive transistor. The electro-optic device has rectification properties, and is determined in intensity by a value of a drive current coming from the drive transistor whose source node is connected to an anode thereof. The input transistor is connected, at one current end, to the gate node of the drive transistor, and samples a video signal to the retention capacity during a predetermined sampling period. The first switching transistor is turned on before the sampling period, and connects the gate node of the drive transistor at a predetermined reference voltage.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: November 9, 2010
    Assignee: Sony Corporation
    Inventors: Takahiko Mutsukura, Mitsuru Asano, Seiichiro Jinta, Masatsugu Tomida
  • Pixel circuit, image display device and drive method for the same, and electronic device
    Publication number: 20080042945
    Abstract: A pixel circuit is disclosed. The pixel circuit includes, at least a drive transistor; an input transistor; a first switching transistor; a second switching transistor; a retention capacity; and an electro-optic device. The retention capacity is connected, at both ends, to a gate node and a source node, respectively, of the drive transistor. The electro-optic device has rectification properties, and is determined in intensity by a value of a drive current coming from the drive transistor whose source node is connected to an anode thereof. The input transistor is connected, at one current end, to the gate node of the drive transistor, and samples a video signal to the retention capacity during a predetermined sampling period. The first switching transistor is turned on before the sampling period, and connects the gate node of the drive transistor at a predetermined reference voltage.
    Type: Application
    Filed: August 8, 2007
    Publication date: February 21, 2008
    Applicant: Sony Corporation
    Inventors: Takahiko Mutsukura, Mitsuru Asano, Seiichiro Jinta, Masatsugu Tomida