Patents by Inventor Kunihiko Matui

Kunihiko Matui 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).

  • In-phase voltage elimination circuit for Hall element
    Patent number: 4435653
    Abstract: An in-phase voltage elimination circuit in which a Hall element has first and second control current input terminals and first and second output terminals, the first and second control current input terminals fed with a control current and the first output terminal connected to one input terminal of an operational amplifier. The other output of the operational amplifier is connected to ground, and the output terminal of the operational amplifier is connected to one of the first and second control current input terminals. A Hall output is produced at the second output terminal of the Hall element.
    Type: Grant
    Filed: November 6, 1981
    Date of Patent: March 6, 1984
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Kunihiko Matui, Shikei Tanaka