Patents by Inventor Kihou Mizushima

Kihou Mizushima 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).

  • Mullite ceramic compound
    Patent number: 5294576
    Abstract: A mullite ceramic composition comprises mullite powder as a raw material; at least one of a rare earth element compound and an alkaline earth element compound; and at least one of a Group 6B vanadium compound, niobium compound and a tantalum compound, and the mixture is fired.
    Type: Grant
    Filed: December 15, 1992
    Date of Patent: March 15, 1994
    Assignee: Shinko Electric Industries Co., Ltd.
    Inventors: Kihou Mizushima, Michio Horiuchi
  • Mullite-based ceramic body
    Patent number: 4935390
    Abstract: A sintered mullite-based body having an excellent dielectric constant and thermal expansion coefficient, and an improved flexural strength and surface smoothness, is obtained by heat treating a composition of 99.1 to 80% by weight of a mullite powder and 0.1 to 20% by weight of yttrium oxide as a sintering agent, optionally together with a colorant of MoO.sub.3.
    Type: Grant
    Filed: May 26, 1988
    Date of Patent: June 19, 1990
    Assignee: Shinko Electric Industries Co., Ltd.
    Inventors: Michio Horiuchi, Kihou Mizushima, Shoichi Iwai
  • Ceramic package
    Patent number: 4827082
    Abstract: A ceramic package includes a high thermal conductive ceramic substrate (AlN or SiC sintered substrate) on which a semiconductor element is mounted, and a mullite sintered frame having metal conductive paths therein and joined to the substrate.
    Type: Grant
    Filed: June 16, 1988
    Date of Patent: May 2, 1989
    Assignee: Shinko Electric Industries, Co., Ltd.
    Inventors: Michio Horiuchi, Kihou Mizushima