Patents by Inventor Ryosuke AKASHI

Ryosuke AKASHI 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).

  • Publication number: 20260231685
    Abstract: A spin current magnetization rotating element includes: a first ferromagnetic layer having a magnetization direction which is changeable; and a spin-orbit torque wiring layer adjacent to the first ferromagnetic layer. At least one element in the spin-orbit torque writing layer has a crystal structure in which, when dimensions of a lattice constant of the crystal structure are expressed by a, b, and c: atoms occupy internal coordinates: (0, 0, 0), (0.5, 0.5, 0), (0.25, 0.75, 0.25), (0.75, 0.25, 0.25), (0, 0.5, 0.5), (0.5, 0, 0.5), (0.75, 0.75, 0.75), and (0.25, 0.25, 0.75); ab planes are laminated so as to have a four-time spiral structure along c axis; and an angle between a axis and b axis (?) is in a range of 60°???120°, and a ratio of b to a (b/a) is in a range of 0.2?b/a?1.0.
    Type: Application
    Filed: January 16, 2024
    Publication date: August 6, 2026
    Applicants: THE UNIVERSITY OF TOKYO, JSR CORPORATION
    Inventors: Takahiro ISHIKAWA, Ryosuke AKASHI, Koutarou KUBO, Yuuta TOGA, Kouji INUKAI, Itti RITTAPORN, Masamitsu HAYASHI, Shinji TSUNEYUKI