Patents by Inventor Norihisa Okayama

Norihisa Okayama 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: 6568267
    Abstract: A sensing device, such as an angular speed detecting device, includes a vibrator for improving detection precision. The vibrator is displaceably supported on a substrate and is vibrated in the direction of an X-axis by driving electrodes. Detecting electrodes detect vibrations of the vibrator in the direction of a Y-axis caused by a Coriolis' force resulting from the angular speed occurring about a Z-axis. Each of the driving and detecting electrodes includes a movable electrode that is connected to the vibrator and that is displaced together therewith on the substrate and a fixed electrode fixed onto the substrate in such a manner as to face the movable electrode. By equalizing conductors connected to fixed electrodes of the driving electrodes and conductors connected to fixed electrodes of the detecting electrodes in length, width, and thickness, respectively, one electrical characteristic is set for those of the wiring portions which function in the same manner.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: May 27, 2003
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazumi Chida, Masato Hashimoto, Masaru Nagao, Hidemi Senda, Norihisa Okayama, Keiko Neki, Masahiro Sugimoto
  • Publication number: 20010045127
    Abstract: A sensing device, such as an angular speed detecting device, includes a vibrator for improving detection precision. The vibrator is displaceably supported on a substrate and is vibrated in the direction of an X-axis by driving electrodes. Detecting electrodes detect vibrations of the vibrator in the direction of a Y-axis caused by a Coriolis' force resulting from the angular speed occurring about a Z-axis. Each of the driving and detecting electrodes includes a movable electrode that is connected to the vibrator and that is displaced together therewith on the substrate and a fixed electrode fixed onto the substrate in such a manner as to face the movable electrode. By equalizing conductors connected to fixed electrodes of the driving electrodes and conductors connected to fixed electrodes of the detecting electrodes in length, width, and thickness, respectively, one electrical characteristic is set for those of the wiring portions which function in the same manner.
    Type: Application
    Filed: April 20, 2001
    Publication date: November 29, 2001
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazumi Chida, Masato Hashimoto, Masaru Nagao, Hidemi Senda, Norihisa Okayama, Keiko Neki, Masahiro Sugimoto