Patents by Inventor Yoshitada Hata

Yoshitada Hata 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).

  • Aircraft cleaning apparatus
    Patent number: 4614002
    Abstract: An aircraft cleaning apparatus for cleaning an aircraft body which is sectioned into some body sections to be cleaned comprises gate-type mobile structures disposed at each side of the aircraft, each of which carries a cleaning unit being movable in a direction of a longitudinal axis of the aircraft and cleaning the aircraft body sections. The gate-type mobile structure can move in both directions parallel to and perpendicular to the longitudinal axis of the aircraft.
    Type: Grant
    Filed: February 14, 1985
    Date of Patent: September 30, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Yoshitada Hata, Kazuyuki Katano, Isao Homma
  • Continuous vacuum treating apparatus
    Patent number: 4551310
    Abstract: A continuous vacuum treating apparatus having a vacuum treating chamber for continuously treating the surface of a plastic molding under a vacuum, and at least one auxiliary vacuum chamber disposed at each of the upstream and downstream sides of the vacuum treating chamber. Each auxiliary vacuum treating chamber includes a pair of seal rolls contacting each other, means for effecting seals between the seal rolls and cases over the entire axial lengths of the rolls, and means for effecting seals between both end surfaces and the cases.
    Type: Grant
    Filed: March 27, 1984
    Date of Patent: November 5, 1985
    Assignees: Hitachi, Ltd., Shin-Etsu Chemical Co., Ltd.
    Inventors: Kiyoshi Imada, Susumu Ueno, Hirokazu Nomura, Masaie Tohkai, Yoshitada Hata, Kenichi Kato