Patents by Inventor Yoichi Fujimura

Yoichi Fujimura 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).

  • Sheet material for radio wave absorber and radio wave absorber
    Patent number: 7695803
    Abstract: A sheet material for a radio wave absorber and a radio wave absorber formed from the sheet material, where the sheet material is light weighted and has excellent form-retaining capability and workability for field assembling. A sheet material (1) for a radio wave absorber has a corrugated paperboard structure with an undulated corrugated medium (2) and a planar liner (3) that are layered over each other. The corrugated medium (2) and/or the liner (3) are constructed from a sheet including an electrical-loss material. A radio wave absorber (10) is characterized in that the sheet material (1) for a radio wave absorber is cut, folded, and assembled as a hollow three-dimensional structure body, which has a shape of wedge, polygonal pyramid, or polygonal cylinder.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: April 13, 2010
    Assignee: Toray Industries, Inc.
    Inventors: Miki Kasabo, Kenichi Hatakeyama, Yoichi Fujimura
  • Sheet material for radio wave-absorbing body and radio wave-absorbing body
    Publication number: 20060246261
    Abstract: A sheet material for a radio wave absorber and a radio wave absorber formed from the sheet material, where the sheet material is light weighted and has excellent form-retaining capability and workability for field assembling. A sheet material (1) for a radio wave absorber has a corrugated paperboard structure with an undulated corrugated medium (2) and a planar liner (3) that are layered over each other. The corrugated medium-(2) and/or the liner (3) are constructed from a sheet including an electrical-loss material. A radio waveabsorber (10) is characterized in that the sheet material (1) for a radio wave absorber is cut, folded, and assembled as a hollow three-dimensional structure body, which has a shape of wedge, polygonal pyramid, or polygonal cylinder.
    Type: Application
    Filed: December 22, 2003
    Publication date: November 2, 2006
    Inventors: Miki Kasabo, Kenichi Hatakeyama, Yoichi Fujimura