Patents by Inventor Hirohumi Sugimoto

Hirohumi Sugimoto 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).

  • Administration apparatus for medical use
    Publication number: 20050197650
    Abstract: An expansion/compression mechanism of a piston rod assembly is composed of a bush shaft, a first cylindrical piston rod that is screwed with the bush shaft, a second cylindrical piston rod that is screwed with the first piston rod, and a piston rod holding member for housing the bush shaft and the piston rods. Therefore, the piston rods move linearly in multiple stages, whereby the size of the whole apparatus is reduced.
    Type: Application
    Filed: March 4, 2005
    Publication date: September 8, 2005
    Inventors: Hirohumi Sugimoto, Kouichi Matsuda, Toshiaki Iio, Seiji Kikuchi, Yoshiki Takeuchi