Patents by Inventor Motoyuki Naito

Motoyuki Naito 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).

  • Printed antenna with strip and slot radiators
    Patent number: 5442367
    Abstract: A printed antenna comprises a window formed in a grounded conductor provided on one surface of an insulator substrate, a first strip conductor formed in the window, and a second strip conductor provided on the other surface of the insulator substrate.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: August 15, 1995
    Assignee: Sumitomo Metal Mining Co., Ltd.
    Inventors: Motoyuki Naito, Koichi Ito
  • Printed antenna
    Patent number: 5317324
    Abstract: In a printed antenna, a window is formed in a grounded conductor provided on one side of an insulator substrate, and a strip conductor is formed in the window as a strip antenna element. The grounded conductor has convex portions projecting toward a central portion of the strip conductor in a longitudinal direction of the strip conductor. Furthermore, in a printed antenna, a window is formed in a grounded conductor provided on one side of an insulator substrate and two strip conductor are formed in the window and a short conductor is provided to connect a longitudinally central portion of each of the strip conductor with the grounded conductor. Furthermore, in a printed antenna, a window is formed in a grounded conductor provided on one side of an insulator substrate, a strip conductor is formed in the window and a short antenna element is formed in the grounded conductor. A short conductor connects a longitudinally central portion of the strip conductor with the grounded conductor.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: May 31, 1994
    Assignee: Sumitomo Metal Mining Co., Ltd.
    Inventors: Motoyuki Naito, Koichi Ito