Patents by Inventor Koichiro Kato

Koichiro Kato 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).

  • Patent number: 5005021
    Abstract: An antenna unit for an automotive vehicle is provided. This antenna unit is adapted to be located in a non-visible position on a vehicle and includes an grounding plate, a radiating conductive plate, and a loop antenna element which is interposed between the plates and is fixed thereto. The loop antenna is formed by two bars which have configurations symmetrical to each other. One end of each bar is folded at a right angle relative to the other end thereof. The ends of the bars are connected by elastically deformable connectors to define a loop and are electrically connected by a wire. By adjusting a length of the wire, easy tuning of the resonance frequency of the antenna unit can be obtained. The deformation of the connector absorbs shock given to the antenna unit by road obstacles such as stones or mud and guards it against impact damage.
    Type: Grant
    Filed: August 4, 1989
    Date of Patent: April 2, 1991
    Assignee: Nissan Motor Company, Limited
    Inventors: Koichiro Kato, Hiroshige Fukuhara, Hiroyuki Kamishima, Hitoshi Tsukahara