Patents by Inventor Ryushu Nakamura

Ryushu Nakamura 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).

  • Safety fence at upper part of cab
    Publication number: 20050230194
    Abstract: A safety fence (11) installed on top of car (12) is formed of multiple holding members (18) that are installed upright on two side plates (15), (15) and back plate (16) of car (12), and columns (19), (19), (20) that are held in a freely vertically extendible manner in said holding members (18). Also, handrails (21), (21), (22) connect the upper ends of said columns, and at the same time, retraining members (23) are set to define the vertical position of the columns with respect to the holding members.
    Type: Application
    Filed: May 6, 2003
    Publication date: October 20, 2005
    Inventor: Ryushu Nakamura