Patents by Inventor Shoichi Okuyama

Shoichi Okuyama 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).

  • Electronic component sucking device and electronic component testing apparatus having the same
    Patent number: 6776060
    Abstract: Disclosed are an electronic component sucking device and an electronic component testing apparatus using the same, the sucking device comprising a suction head having at its extremity an opening arranged to suck an electronic component when a negative pressure is applied thereto; a hold-down center rod having an aperture, a conduit through which passes a gas supplied or discharged through the opening of the suction head, and a hold-down portion at its extremity adapted to be inserted into the interior of the suction head; a coil spring for imparting a biasing force to the suction head and the hold-down center rod; and a link lever interposed between the suction head and the hold-down center rod; wherein when the hold-down center rod is subjected to a force pressing down against the biasing force of the coil spring, the link lever pushes the suction head upward so that the hold-down portion of the hold-down center rod protrudes from the suction head.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: August 17, 2004
    Assignee: Fujitsu Media Devices Limited
    Inventors: Bin Miao, Shoichi Okuyama
  • Electronic component sucking device and electronic component testing apparatus having the same
    Publication number: 20030090258
    Abstract: Disclosed are an electronic component sucking device and an electronic component testing apparatus using the same, the sucking device comprising a suction head having at its extremity an opening arranged to suck an electronic component when a negative pressure is applied thereto; a hold-down center rod having an aperture, a conduit through which passes a gas supplied or discharged through the opening of the suction head, and a hold-down portion at its extremity adapted to be inserted into the interior of the suction head; a coil spring for imparting a biasing force to the suction head and the hold-down center rod; and a link lever interposed between the suction head and the hold-down center rod; wherein
    Type: Application
    Filed: October 18, 2002
    Publication date: May 15, 2003
    Applicant: FUJITSU MEDIA DEVICES LIMITED
    Inventors: Bin Miao, Shoichi Okuyama