Patents by Inventor Kazuhira Ozima

Kazuhira Ozima 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).

  • Escalator
    Patent number: 4682681
    Abstract: In an escalator, at least one of a plurality of staircase steps connected in an endless manner and supported by a body frame is made for a wheel chair loading staircase step. The staircase step comprises an upwardly movable main tread board, a sub-tread board supported by the main tread board, a lifting mechanism for lifting the main tread board, an electric drive unit for driving the lifting mechanism and a widening mechanism for automatically widening the sub-tread board by means of the electric drive unit.
    Type: Grant
    Filed: March 25, 1986
    Date of Patent: July 28, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Katsuya Teranishi, Kazuhira Ozima, Cyuichi Saito, Hiroyasu Ogawa