Patents by Inventor Akito Horiuchi

Akito Horiuchi 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 for production of silicon nitride sintered body
    Patent number: 4716133
    Abstract: When a composite nitride obtained by nitriding a fine powder of an alloy comprising metallic silicon and a metal of the group IIIa of the Periodic Table is sintered, a highly homogeneous silicon nitride sintered body having a high strength can be obtained. This fine powder of the alloy and this composite nitride exert a function of promoting sintering of Si.sub.3 N.sub.4.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: December 29, 1987
    Assignee: Kyocera Corporation
    Inventors: Akito Horiuchi, Kiyoshi Yokoyama, Makoto Yoshida