Patents by Inventor Kazuhiko Teramura

Kazuhiko Teramura 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).

  • Zirconia-added alumina substrate with direct bonding of copper
    Patent number: 5675181
    Abstract: A ceramic substrate is a high-temperature fired body consisting of alumina as the main component, zirconia, and a ceramics sintering assisting agent. The assisting agent is one of yttria, calcia, magnesia, and ceria, in which yttria is added at 0.1-2 wt %, calcia is added at 0.02-0.5 wt %, magnesia is added at 0.02-0.4 wt %, and ceria is added at 0.02-0.5 wt %.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: October 7, 1997
    Assignees: Fuji Electric Co., Ltd., Sumitomo Metal Ceramics Inc.
    Inventors: Masaharu Nishiura, Shigemasa Saito, Akira Morozumi, Shizuyasu Yosida, Katumi Yamada, Toshio Nozaki, Hiroshi Miyama, Seigo Oiwa, Kazuya Matuura, Kazuhiko Teramura