Patents by Inventor Shigeo Oohashi

Shigeo Oohashi 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).

  • Thermal conduction device
    Patent number: 4823863
    Abstract: The present invention relates to a thermal conduction device well suited to cool electronic components such as semiconductor devices, in which a porous layer is provided at the surface part of the contact interface of a heat generating element or a heat sink element, and a liquid such as oil is contained in cavities formed in the porous layer, the heat generating element and the heat sink element being held in close contact by the surface tension of the liquid, whereby heat generated by the heat generating element is transferred to the heat sink element.
    Type: Grant
    Filed: March 20, 1987
    Date of Patent: April 25, 1989
    Assignee: Hitachi, Ltd.
    Inventors: Tadakatsu Nakajima, Wataru Nakayama, Shigeo Oohashi, Heikichi Kuwabara, Takahiro Daikoku