Patents by Inventor Tatsuhiko Irie

Tatsuhiko Irie 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).

  • Semiconductor device
    Patent number: 5126818
    Abstract: A semiconductor device includes a circuit pattern of a conductive thin film formed on a ceramic substrate by means of an etching, and an IC chip connected to the etched circuit pattern through a gang-bonding in which respective pads of conduction parts of the circuit pattern and of the IC chip directly contact with each other. The circuit pattern can be thereby provided densely, and contributive to a higher integration of the IC chip.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: June 30, 1992
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Shigenari Takami, Tatsuhiko Irie, Jiro Hashizume, Yoshimasa Himura, Mitsuhiro Kani, Nobolu Yamaguchi
  • Light receiving element
    Patent number: 4805006
    Abstract: A light receiving element is formed by a plurality of light receiving cells connected in series with one another and arranged for optical coupling to a light source, the cells having respectively a surface area varied depending on light input intensity from the light source. The light receiving cells are thereby made to maintain excellent light receiving efficiency without causing optical loss at any one of them.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: February 14, 1989
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Shuichiroh Yamaguchi, Yukio Idaka, Takeshi Matsumoto, Tatsuhiko Irie