Patents by Inventor Isamu Shiraki

Isamu Shiraki 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).

  • Patent number: 4362232
    Abstract: A step for a passenger conveyor has a tread formed with a plurality of cleats defining grooves therebetween and adapted to mesh with comb-shaped teeth provided on step-on and step-out landings, and side frames on which the tread is mounted. The tread is provided with flat and cleat-less mounting sections each having a width greater than the width of the groove between each adjacent pair of cleats. The tread is removably connected at the mounting sections to the side frame members. The flat mounting sections are covered with covering members removably mounted on the tread.
    Type: Grant
    Filed: February 29, 1980
    Date of Patent: December 7, 1982
    Assignee: Hitachi, Ltd.
    Inventors: Cyuichi Saito, Isamu Shiraki, Hiroshi Yumino