Patents by Inventor Toshifumi Saito

Toshifumi Saito 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).

  • Electromagnetic wave absorber, manufacturing method thereof and electromagnetic wave anechoic room
    Patent number: 7479917
    Abstract: An electromagnetic wave absorber has a configuration in which at least three hollow tetrahedrons, each having one open face, are connected to one another so that each surface opposite to a respective open face of the hollow tetrahedrons defines a respective side face of a hollow pyramid. Preferably, the electromagnetic wave absorber is made of sheet electromagnetic wave absorption members, which have a corrugated board structure in which at least one sheet includes an electrically conductive material. The electromagnetic wave absorber is low-cost, has reduced transport volume, excellent electromagnetic wave absorption characteristics from low frequency to high frequency with a shorter absorber length, has no or small difference in characteristics due to polarization plane, is lightweight and high in structural strength, and easy to manufacture and install.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: January 20, 2009
    Assignees: TDK Corporation, TORAY Industries, Inc.
    Inventors: Hiroshi Kurihara, Toshifumi Saito, Miki Kasabo, Toru Sugahara, Takashi Tanoue, Kazuya Matsumura
  • Electromagnetic wave absorber
    Patent number: 7471233
    Abstract: An electromagnetic wave absorber includes a first electromagnetic wave absorbent member containing a magnetic loss material, and a second electromagnetic wave absorbent member containing a conducting material arranged in front of the first electromagnetic wave absorbent member. The second electromagnetic wave absorbent member has a shape including an aperture at a tip of a hollow cone.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: December 30, 2008
    Assignee: TDK Corporation
    Inventors: Hiroshi Kurihara, Toshifumi Saito
  • ELECTROMAGNETIC WAVE ABSORBER, MANUFACTURING METHOD THEREOF AND ELECTROMAGNETIC WAVE ANECHOIC ROOM
    Publication number: 20070030194
    Abstract: An electromagnetic wave absorber has a configuration in which at least three hollow tetrahedrons, each having one open face, are connected to one another that each surface opposite to a respective open face of the hollow tetrahedrons defines a respective side face of a hollow pyramid. Preferably, the electromagnetic wave absorber is made of sheet electromagnetic wave absorption members, which have a corrugated board structure in which at least one sheet includes an electrically conductive material. The electromagnetic wave absorber is low-cost, has reduced transport volume, excellent electromagnetic wave absorption characteristics from low frequency to high frequency with a shorter absorber length, has no or small difference in characteristics due to polarization plane, is lightweight and high in structural strength, and easy to manufacture and install.
    Type: Application
    Filed: August 3, 2006
    Publication date: February 8, 2007
    Applicants: TDK CORPORATION, TORAY INDUSTRIES, INC.
    Inventors: Hiroshi KURIHARA, Toshifumi SAITO, Miki KASABO, Toru SUGAHARA, Takashi TANOUE, Kazuya MATSUMURA
  • Electromagnetic wave absorber
    Publication number: 20060066467
    Abstract: An electromagnetic wave absorber includes a first electromagnetic wave absorbent member containing a magnetic loss material, and a second electromagnetic wave absorbent member containing a conducting material arranged in front of the first electromagnetic wave absorbent member. The second electromagnetic wave absorbent member has a shape including an aperture at a tip of a hollow cone.
    Type: Application
    Filed: May 13, 2005
    Publication date: March 30, 2006
    Applicant: TDK Corporation
    Inventors: Hiroshi Kurihara, Toshifumi Saito