Patents by Inventor Ryuhei Koinuma

Ryuhei Koinuma 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).

  • Liquid medicine injection device
    Patent number: D777321
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: January 24, 2017
    Assignee: Nipro Corporation
    Inventors: Hiroyuki Nakagami, Masayuki Uenishi, Naoki Nakagawa, Shingo Sakamoto, Ryuhei Koinuma