Patents by Inventor Karuhiko Yamamoto

Karuhiko Yamamoto 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 cooling a semiconductor device with a cooling unit, using metal sherbet between the device and the cooling unit
    Patent number: 5024264
    Abstract: A method of cooling a device with a cooling unit, using a metal sherbet, which is metal being in a state of a two-phase composition consisting of a liquid phase and a solid phase, as a heat conducting body put between the cooling unit and the heat generating device for transferring heat generated in the device to the cooling unit. The metal sherbet is metal, such as an In-Ga binary system, in which solids of an In-Ga solid solution are dispersed in an In and Ga liquid at a temperature obtained under normal operations of the device and the cooling unit.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: June 18, 1991
    Assignee: Fujitsu Limited
    Inventors: Katsuhide Natori, Isao Watanabe, Koji Katsuyama, Isao Kawamura, Karuhiko Yamamoto, Takeshi Nagai