Patents Assigned to Sadami Tsutsumi
  • Biodegradable medical implement
    Patent number: 12029450
    Abstract: To ensure that a biodegradable medical implement dissolves in vivo at an appropriate dissolution rate. The biodegradable medical implement of the present invention is formed of a magnesium material, and, at least in one transverse section, a layer of magnesium crystal grains in which a (0001) plane in a hexagonal crystal structure is oriented toward a surface side is continuous over an entire circumference.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: July 9, 2024
    Assignees: NITTO SEIKO CO., LTD., KYOTO PREFECTURAL PUBLIC UNIVERSITY CORPORATION, NATIONAL UNIVERISTY CORPORATION UNIVERSITY OF TOYAMA, Sadami Tsutsumi
    Inventors: Masakazu Ishihara, Yoshimitsu Ueno, Tomoaki Murata, Yukito Otsuki, Yusuke Kobayashi, Yoshinobu Oka, Wook-Cheol Kim, Tetsuo Aida, Sadami Tsutsumi