Patents by Inventor Nobuo Yajima

Nobuo Yajima 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).

  • Ion beam irradiation apparatus and insulating spacer for the same
    Patent number: 7495241
    Abstract: The frequency of replacement of an insulating spacer disposed between grids of an ion beam irradiation apparatus is to be reduced. In addition, the intervals of the multiple grids in the ion beam irradiation apparatus are to be kept constant. To achieve these objects, in a so-called insulating spacer provided for maintaining insulation between the grids, a groove portion having a bottom onto which sputtered materials are hard to adhere is provided on the central portion of the side surface of the insulating spacer all along its circumference.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: February 24, 2009
    Assignee: TDK Corporation
    Inventors: Katsumi Ito, Kazuya Maekawa, Etsuo Takeuchi, Nobuo Yajima, Junichi Sato
  • Ion beam irradiation apparatus and insulating spacer for the same
    Publication number: 20050211926
    Abstract: The frequency of replacement of an insulating spacer disposed between grids of an ion beam irradiation apparatus is to be reduced. In addition, the intervals of the multiple grids in the ion beam irradiation apparatus are to be kept constant. To achieve these objects, in a so-called insulating spacer provided for maintaining insulation between the grids, a groove portion having a bottom onto which sputtered materials are hard to adhere is provided on the central portion of the side surface of the insulating spacer all along its circumference.
    Type: Application
    Filed: February 3, 2005
    Publication date: September 29, 2005
    Applicant: TDK Corporation
    Inventors: Katsumi Ito, Kazuya Maekawa, Etsuo Takeuchi, Nobuo Yajima, Junichi Sato