Patents by Inventor Yukio Maruhashi

Yukio Maruhashi 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).

  • Object confirming apparatus
    Patent number: 4276621
    Abstract: An object confirming apparatus receives ultrasonic wave pulses periodically transmitted from a transmitter and confirms them a plural number of times according to the periodicity of the transmitted pulses so that a confirming signal may be generated which is free from the influence of noise.
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: June 30, 1981
    Assignee: Koa Denshi Kogyo Kabushiki Kaisha
    Inventors: Hideo Hiruma, Yukio Maruhashi