Patents by Inventor Katsuyoshi TAKAYANAGI

Katsuyoshi TAKAYANAGI 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).

  • LIGATION DEVICE
    Publication number: 20210161536
    Abstract: A ligation device includes a cylindrical inner cylinder having a distal end portion, a slider having a cylindrical shape, attached around the inner cylinder, movable with respect to the inner cylinder along an axial direction of the inner cylinder, and having annular grooves extending along a circumferential direction on an inner peripheral face, and ligation rings attached around the inner cylinder and located in the annular grooves.
    Type: Application
    Filed: January 11, 2021
    Publication date: June 3, 2021
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Daisuke KIKUCHI, Toshihiko TSUKAMOTO, Toshiyuki NARITA, Katsuyoshi TAKAYANAGI, Satoshi NAMIMA, Erika ASAHATA, Takayuki UTANI