Patents by Inventor Ieda Kiyokazu

Ieda Kiyokazu 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).

  • Microstrip antenna device having three resonance frequencies
    Patent number: 5512910
    Abstract: A microstrip antenna device is disclosed as having three resonance frequencies comprising, a dielectric sheet whose thickness is smaller than the used wave length, a radiating conductor sheet which is disposed on one surface of the dielectric sheet and which is a rectangular shape and has line load in the center of one side of the rectangle, and a ground conductor sheet disposed on the other surface of the dielectric sheet.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: April 30, 1996
    Assignee: Aisin Seiki, Co., Ltd.
    Inventors: Yuichi Murakami, Ieda Kiyokazu
  • Axial mode helical antenna
    Patent number: 4935747
    Abstract: An axial mode helical antenna includes a metal belt member disposed around the reflector of the antenna in order to permit use of reduced diameter reflectors and, therefore, to produce a small helical antenna having increased directivity.
    Type: Grant
    Filed: September 10, 1987
    Date of Patent: June 19, 1990
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Murakami Yuichi, Ieda Kiyokazu