Patents by Inventor Kai Funakl

Kai Funakl 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).

  • FRICTION STIR WELDING TOOL MEMBER, AND FRICTION STIR WELDING METHOD USING THE SAME
    Publication number: 20210229210
    Abstract: A friction stir welding tool member according to the present embodiment has a shoulder portion and a probe portion concentrically projecting from an upper surface of the shoulder portion. The shoulder portion includes a curved surface processed portion that is curved to have a curved shape on an outer peripheral edge of the shoulder portion. A space occupancy occupied by the two-dimensional space in which neither the shoulder portion nor the probe portion exists is in a range of 30% to 70%, the space occupancy being determined based on a projection drawing of a side surface region surrounded from a tip of the probe portion to the curved surface processed portion of the shoulder portion.
    Type: Application
    Filed: April 14, 2021
    Publication date: July 29, 2021
    Applicants: OSAKA UNIVERSITY, TOSHIBA MATERIALS CO., LTD.
    Inventors: Hidetoshi Fujll, Yoshiaki Morisada, Kai Funakl, Masahiro Kato, Takayuki Fukasawa, Yutaka Abe