Patents by Inventor Yoji Takamura

Yoji Takamura 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).

  • Charge-coupled device having on-chip lens
    Patent number: 5592223
    Abstract: In a color CCD (charge-coupled device) imaging device where chromatic filter components are formed on sensor units functioning as pixels, respectively, and small condenser lenses are provided on the respective chromatic filter components, it is so constructed that areas of the small condenser lenses are varied, depending upon film thickness of the respective chromatic filter components. Then, the sensitivity increasing rates for the respective pixels of the color CCD imaging device are uniformed.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: January 7, 1997
    Assignee: Sony Corporation
    Inventors: Yoji Takamura, Hiroki Endo
  • Solid state imager wherein the horizontal transfer is accomplished with first and second clock voltages and the cross-over point between the voltages is above the medium level between the peak values of the voltages
    Patent number: 5233430
    Abstract: A solid state imager is comprised of an imager unit composed of a plurality of sensitive units arrayed in the unit of pixels in a two-dimensional manner in the horizontal and vertical directions and vertical transfer units for transferring electric charges read-out from the sensitive units in the vertical direction at every vertical column, and a horizontal transfer unit formed of charge transfer unit group (8.sub.1, 8.sub.2, 8.sub.3, . . . ) of a plurality of bits in which a clock voltage (.phi..sub.H1) is applied to a first charge transfer unit group (8.sub.1, 8.sub.3. . . ) at every other bit including the charge transfer unit (8.sub.1) of a final bit and a clock voltage (.phi..sub.H2) is applied to a second charge transfer unit group (8.sub.2, 8.sub.4, . . . ) at every other bit of the remaining bit to transfer the electric charges supplied from the image unit in the horizontal direction, wherein a cross point between a leading edge of the clock voltage (.phi..sub.
    Type: Grant
    Filed: January 17, 1992
    Date of Patent: August 3, 1993
    Assignee: Sony Corporation
    Inventors: Yoji Takamura, Kazuya Yonemoto, Naoki Nishi, Manabu Ishibashi