Patents by Inventor Hidefumi Okamura

Hidefumi Okamura 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).

  • Patent number: 8218730
    Abstract: A mechanism to which a liquid-repellent structure hard to be exfoliated is applied. The tip of each of microprojections has a generally spherical surface. When a liquid metal (8) comes into contact with such a surface, the liquid metal (8) cannot enter the spaces among microprojections and is supported by the surfaces of the tips only with point contact. Therefore, the liquid metal (8) neither wets the surface of the base material nor spread over the surface. The liquid-repellent surface (11) has a structure such that the liquid metal (8) is supported by point contact of the many microprojections and repelled by the surface (11), and does not wet the surface (11).
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: July 10, 2012
    Assignee: Hitachi Medical Corporation
    Inventor: Hidefumi Okamura
  • Publication number: 20100166149
    Abstract: A mechanism to which a liquid-repellent structure hard to be exfoliated is applied. The tip of each of microprojections has a generally spherical surface. When a liquid metal (8) comes into contact with such a surface, the liquid metal (8) cannot enter the spaces among microprojections and is supported by the surfaces of the tips only with point contact. Therefore, the liquid metal (8) neither wets the surface of the base material nor spread over the surface. The liquid-repellent surface (11) has a structure such that the liquid metal (8) is supported by point contact of the many microprojections and repelled by the surface (11), and does not wet the surface (11).
    Type: Application
    Filed: June 12, 2008
    Publication date: July 1, 2010
    Applicant: HITACHI MEDICAL CORPORATION
    Inventor: Hidefumi Okamura
  • Patent number: 7104687
    Abstract: An X-ray diagnosis apparatus is disclosed which includes two different cooling circuits and a single cooling portion. A first heat transfer medium is circulated for absorbing heat generated in the X-ray generator. A second heat transfer medium is circulated for absorbing the heat generated in the planer type X-ray detector. A heat exchanger is provided for exchanging heat between the first heat transfer medium and the second heat transfer medium. The cooling portion is coupled to the cooling circuit carrying the second heat transfer medium in order to cool the second heat transfer medium.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: September 12, 2006
    Assignee: Hitachi Medical Corporation
    Inventors: Hidefumi Okamura, Motomichi Doi
  • Publication number: 20040234040
    Abstract: An X-ray diagnosis apparatus comprising: an X-ray generator 1 for irradiating X-rays to an object; a planer type X-ray detector 14 for detecting the X-rays irradiated from the X-ray generator and passed through the object; a heat transfer medium 5 for absorbing the heat generated in the X-ray generator and the heat generated in the planer type X-ray detector; cooling means 13 for cooling the heat transfer medium heated by absorbing the heat; and means for moving the heat transfer medium between the X-ray generator, the planer type X-ray detector, and the cooling means.
    Type: Application
    Filed: June 9, 2004
    Publication date: November 25, 2004
    Inventors: Hidefumi Okamura, Motomichi Doi