Patents by Inventor Hirotaro Kotani

Hirotaro Kotani 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: 4294463
    Abstract: A collapsible luggage carrier being pulled along behind the user rolling on two wheels. So as to possess outstanding portability along with universal usefulness as a transport device the carrier is provided with a spacious base platform frame comprising two X-shaped frames laterally arranged and pivotally connected together, a back frame comprising a telescopic handle bar and a pair of links connected thereto and being pivotally connected to the base platform frame at three equidistant portions in lateral alignment, expanding members, for holding both the frames in their laterally expanded state, and none of rigid side assemblies disposed to opposite sides of the carrier. The both frames are unfoldable at a right angle with each other and each foldable over the other. The frames are laterally expansible and collapsible with each other. The carrier is collapsible into the form of a compact, short and slender bundle without disassembly.
    Type: Grant
    Filed: October 10, 1979
    Date of Patent: October 13, 1981
    Inventor: Hirotaro Kotani