Patents by Inventor Katsuyoshi Koike

Katsuyoshi Koike 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).

  • Magnetic-path member, electromagnetic coupling device using magnetic-path member, and method of manufacturing magnetic-path member
    Patent number: 7592890
    Abstract: A magnetic-path member includes first and second magnetic portions positioned on inner and outer peripheral sides of the magnetic-path member respectively. The magnetic-path member includes a non-magnetic portion interposed between the first and second magnetic portions and coupling the first and second magnetic portions by heat sintering. Magnetic lines of force occurring from an electromagnet pass through the magnetic-path member.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: September 22, 2009
    Assignee: GKN Driveline Torque Technology KK
    Inventors: Masashi Aikawa, Koji Iizuka, Masayuki Sayama, Katsuyoshi Koike
  • Communication medium capable of carrying out contactless communication and method of producing the same
    Patent number: 7213765
    Abstract: In a communication medium used, for example, as an IC card or an IC tag, a metal plate is electrically connected to an antenna wire and embedded in a card base member together with the antenna wire. An IC module is also embedded in the card base member and electrically connected to the metal plate. A plurality of openings are formed in the metal plate to be opened on at least one of first and second principal surfaces defining a thickness direction of the metal plate.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: May 8, 2007
    Assignee: NEC Tokin Corporation
    Inventors: Katsuyoshi Koike, Tsutomu Ihara, Akihiro Takahashi
  • Magnetic-path member, electromagnetic coupling device using magnetic-path member, and method of manufacturing magnetic-path member
    Publication number: 20060144666
    Abstract: A magnetic-path member includes first and second magnetic portions positioned on inner and outer peripheral sides of the magnetic-path member respectively. The magnetic-path member includes a non-magnetic portion interposed between the first and second magnetic portions and coupling the first and second magnetic portions by heat sintering. Magnetic lines of force occurring from an electromagnet pass through the magnetic-path member.
    Type: Application
    Filed: December 21, 2005
    Publication date: July 6, 2006
    Inventors: Masashi Aikawa, Koji Iizuka, Masayuki Sayama, Katsuyoshi Koike
  • Communication medium capable of carrying out contactless communication and method of producing the same
    Publication number: 20050011960
    Abstract: In a communication medium used, for example, as an IC card or an IC tag, a metal plate is electrically connected to an antenna wire and embedded in a card base member together with the antenna wire. An IC module is also embedded in the card base member and electrically connected to the metal plate. A plurality of openings are formed in the metal plate to be opened on at least one of first and second principal surfaces defining a thickness direction of the metal plate.
    Type: Application
    Filed: June 30, 2004
    Publication date: January 20, 2005
    Applicant: NEC TOKIN Corporation
    Inventors: Katsuyoshi Koike, Tsutomu Ihara, Akihiro Takahashi