Patents by Inventor Katsuo Minakata

Katsuo Minakata 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).

  • Pattern antenna, tag antenna and pattern transmission path
    Patent number: 7782259
    Abstract: In an antenna formed by a substantially thin-plate state conductive member on a base material, a surface area expanding portion is provided at least substantially at a center part in a direction orthogonal to a direction in which an electric current flows. The surface area expanding portion is a projection portion provided in a projecting state with respect to a peripheral portion (or a concave portion arranged concaved than the peripheral portion). A width dimension of the projection portion (or the concave portion) in a cross-sectional face is twice or more of a skin depth of the electric current in the cross sectional face.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: August 24, 2010
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tsuyoshi Ohashi, Takeshi Asano, Yuji Shinkai, Katsuo Minakata
  • PATTERN ANTENNA, TAG ANTENNA AND PATTERN TRANSMISSION PATH
    Publication number: 20080238784
    Abstract: In an antenna formed by a substantially thin-plate state conductive member on a base material, a surface area expanding portion is provided at least substantially at a center part in a direction orthogonal to a direction in which an electric current flows. The surface area expanding portion is a projection portion provided in a projecting state with respect to a peripheral portion (or a concave portion arranged concaved than the peripheral portion). A width dimension of the projection portion (or the concave portion) in a cross-sectional face is twice or more of a skin depth of the electric current in the cross sectional face.
    Type: Application
    Filed: March 17, 2008
    Publication date: October 2, 2008
    Inventors: Tsuyoshi Ohashi, Takeshi Asano, Yuji Shinkai, Katsuo Minakata