Patents by Inventor Masakatsu G. Fujie

Masakatsu G. Fujie 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).

  • Walking aid apparatus
    Patent number: 6536544
    Abstract: A walking aid apparatus including a movable body and a support unit provided to the movable body to support a user further includes means for reducing a change rate of speed of the movable body with respect to a change in a force applied from the user to the support unit. With this arrangement, even when the user stumbles and applies a strong force to the support unit, the movable body can be prevented from moving suddenly, minimizing the possibility of the user being left behind the movable body.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: March 25, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Saku Egawa, Atsushi Koseki, Yasuhiro Nemoto, Masakatsu G. Fujie