Patents by Inventor Tadasu TATEISHI

Tadasu TATEISHI 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).

  • Catheter assembly
    Patent number: 11383031
    Abstract: A catheter assembly includes: a catheter; a catheter hub; an inner needle; a needle hub; and a deflection suppressing mechanism suppressing deflection of the inner needle. The deflection suppressing mechanism includes an upper deflection suppressing portion positioned on an upper side of the inner needle and a lower deflection suppressing portion positioned on a lower side of the inner needle. At least one of the upper deflection suppressing portion and the lower deflection suppressing portion is movable with respect to the needle hub.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: July 12, 2022
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Takanori Tominaga, Shinya Kusunoki, Ryoji Kobayashi, Tadasu Tateishi, Masahiro Ishida
  • CATHETER ASSEMBLY
    Publication number: 20190388616
    Abstract: A catheter assembly includes: a catheter; a catheter hub; an inner needle; a needle hub; and a deflection suppressing mechanism suppressing deflection of the inner needle. The deflection suppressing mechanism includes an upper deflection suppressing portion positioned on an upper side of the inner needle and a lower deflection suppressing portion positioned on a lower side of the inner needle. At least one of the upper deflection suppressing portion and the lower deflection suppressing portion is movable with respect to the needle hub.
    Type: Application
    Filed: September 4, 2019
    Publication date: December 26, 2019
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Takanori TOMINAGA, Shinya KUSUNOKI, Ryoji KOBAYASHI, Tadasu TATEISHI, Masahiro ISHIDA
  • GUIDE WIRE
    Publication number: 20080119762
    Abstract: A guide wire includes a wire body, a wire distal end section at the distal side of the wire body and integrally formed in one piece with the wire body, a flat plate-shaped section provided at a distal end section of the guide wire and at the wire distal end section, a coating layer formed on a surface of the wire body, and a coil mounted at the wire distal end section. A surface part of the flat plate-shaped section preferably has a residual stress higher than that an internal part of the flat plate-shaped section.
    Type: Application
    Filed: September 21, 2007
    Publication date: May 22, 2008
    Inventors: Tadasu TATEISHI, Yuuki Yoshifusa, Katsuhiro Shirakawa, Youki Aimi