Patents by Inventor Yuji Hirohama

Yuji Hirohama 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: 4932097
    Abstract: A wiper arm is provided with a resinous intermediate member between a retainer made from an iron-based alloy and an arm head die cast from an aluminum alloy. The wiper arm is free from electrochemical corrosion because the retainer and the arm head are not in contact with each other due to said resinous intermediate member disposed therebetween.
    Type: Grant
    Filed: June 16, 1988
    Date of Patent: June 12, 1990
    Assignee: Jidosha Denki Kogyo Kabushiki Kaisha
    Inventors: Kyoji Kobayashi, Yuji Hirohama
  • Patent number: 4922570
    Abstract: A vehicular windshield washer system in combination with a windshield wiper having a wiper arm. The washer system is comprised of a pair of washer nozzles mountd on the wiper arm and so directed to eject washer fluid to opposite sides of the wiper arm upon being supplied with washer fluid. The washer fluid from a washer fluid source is selectively supplied to the washer nozzles in accordance with movement of the wiper arm. The washer fluid is suppliable to one of the washer nozzles upon rotational movement of the wiper arm in one direction and to the other washer nozzle upon rotational movement of the wiper arm in the other direction. The rotational movements turn at a turning position of the wiper arm.
    Type: Grant
    Filed: July 6, 1988
    Date of Patent: May 8, 1990
    Assignees: Nissan Motor Co., Ltd., Jidosha Denki Kogyo Kabushiki Kaisha
    Inventors: Yuji Hirohama, Eiichi Ono, Yukiho Murata