Patents by Inventor Isao Tanooka

Isao Tanooka 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).

  • Circuit board having test coupon and method for evaluating the circuit board
    Patent number: 7333346
    Abstract: A circuit board includes: a substrate; a conductive pattern disposed on a surface of the substrate; a lower insulation layer disposed on the conductive pattern to cover the conductive pattern except for an opening, through which the conductive pattern is partially exposed from the lower insulation layer; a conductor disposed on the lower insulation layer and connecting to the conductive pattern through the opening; an upper insulation layer disposed on the conductor for covering the conductor and the lower insulation layer; and a test coupon disposed on the substrate for evaluating the conductor.
    Type: Grant
    Filed: November 9, 2004
    Date of Patent: February 19, 2008
    Assignee: DENSO CORPORATION
    Inventors: Tomoyuki Miyagawa, Toshiharu Shiratsuchi, Isao Tanooka, Hideaki Sugiura
  • Circuit board having test coupon and method for evaluating the circuit board
    Publication number: 20050116224
    Abstract: A circuit board includes: a substrate; a conductive pattern disposed on a surface of the substrate; a lower insulation layer disposed on the conductive pattern to cover the conductive pattern except for an opening, through which the conductive pattern is partially exposed from the lower insulation layer; a conductor disposed on the lower insulation layer and connecting to the conductive pattern through the opening; an upper insulation layer disposed on the conductor for covering the conductor and the lower insulation layer; and a test coupon disposed on the substrate for evaluating the conductor.
    Type: Application
    Filed: November 9, 2004
    Publication date: June 2, 2005
    Inventors: Tomoyuki Miyagawa, Toshiharu Shiratsuchi, Isao Tanooka, Hideaki Sugiura