Patents by Inventor Yoshimi Otomo

Yoshimi Otomo 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).

  • Frame structure for a curved escalator
    Patent number: 4726460
    Abstract: A frame structure for a curved escalator comprises a plurality of truss units connected to each other to define an arc in plan, the frame structure having upper and lower horizontal sections and a sloped section therebetween. The frame structure further comprises an upper transition section including at least one truss unit and connected between the upper horizontal section and the sloped section, and a lower transition section including at least one truss unit and connected between the lower horizontal section and the sloped section.
    Type: Grant
    Filed: October 7, 1986
    Date of Patent: February 23, 1988
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Yoshimi Otomo