Patents by Inventor Sigeru Kondo

Sigeru Kondo 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).

  • Method of increasing the amplification of a transistor through use of organic compounds
    Patent number: 4210498
    Abstract: A method of treating a semiconductor device comprising the step of dipping said semiconductor device into a solution of chelating agent selected from the group consisting of .gamma.-pyrones, nitrated catechols, flavones and combinations thereof.
    Type: Grant
    Filed: November 7, 1975
    Date of Patent: July 1, 1980
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tooru Tamura, Nobuyuki Ojima, Sigeru Kondo, Kenichirou Kishita
  • Epoxy composition for encasing semiconductor devices
    Patent number: 4013612
    Abstract: An epoxy resin composition for encasing semiconductive devices comprising a homogeneous mixture of a cresol novolak type epoxy resin and phthalic anhydride as a curing agent, the amount of phthalic anhydride being in excess of the equivalents of epoxide groups, a derivative of imidazole as a curing accelerating agent, and remainder being mineral filler.
    Type: Grant
    Filed: October 15, 1975
    Date of Patent: March 22, 1977
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tooru Tamura, Nobuyuki Ojima, Sigeru Kondo, Jizodo Yozo