Patents by Inventor Masatsugu Takanabe

Masatsugu Takanabe 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).

  • Wheelchair
    Patent number: 10667968
    Abstract: A wheelchair includes right and left side frames and a connection unit connecting the side frames to each other. The side frames each include a unit fixture for detachably fixing the connection unit. The connection unit is selectable from a foldable connection unit connecting the right and left side frames with a distance therebetween changeable or a non-foldable connection unit connecting the right and left side frames with the distance therebetween kept constant.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: June 2, 2020
    Assignee: Yosizuka Seiki Co., Ltd.
    Inventors: Hidenori Ueda, Masatsugu Takanabe
  • WHEELCHAIR
    Publication number: 20190231618
    Abstract: A wheelchair includes right and left side frames and a connection unit connecting the side frames to each other. The side frames each include a unit fixture for detachably fixing the connection unit. The connection unit is selectable from a foldable connection unit connecting the right and left side frames with a distance therebetween changeable or a non-foldable connection unit connecting the right and left side frames with the distance therebetween kept constant.
    Type: Application
    Filed: September 25, 2017
    Publication date: August 1, 2019
    Inventors: Hidenori UEDA, Masatsugu TAKANABE