Patents by Inventor Rie Umetsu

Rie Umetsu 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).

  • MnBi-based magnet
    Publication number: 20240347240
    Abstract: A MnBi-based magnet according to an embodiment includes crystal grains of (MnBi)aMb composition including a manganese element, a bismuth and a M element, wherein the M element is contained an amount of more than 0 at % and less than or equal to 10 at % when at % for all atoms of (MnBi)aMb is 100 at %, and the M element includes a chromium element, a germanium element, or a tellurium element.
    Type: Application
    Filed: April 17, 2024
    Publication date: October 17, 2024
    Inventors: Hyunseok LIM, Seok Bae, Yuto Morishita, Yosuke Harashima, Yasuteru Shigeta, Masafuyu Matsui, Rie Umetsu
  • CPP magneto-resistive element, method of manufacturing CPP magneto-resistive element, magnetic head, and magnetic memory apparatus
    Publication number: 20060157810
    Abstract: A CPP magneto-resistive element includes a substrate and an antiferromagnetic layer, a fixed magnetic layer, a non-magnetic intermediate layer, and a free magnetic layer that are sequentially formed on the substrate, wherein the antiferromagnetic layer includes an alloy of Mn and at least one element of a group including Pd, Pt, Ni, Ir, and Rh, wherein the specific resistance of the antiferromagnetic layer ranges from 10 ??·cm to 150 ??·cm at a temperature of 300 K.
    Type: Application
    Filed: January 17, 2006
    Publication date: July 20, 2006
    Inventors: Kazuaki Fukamichi, Rie Umetsu, Atsushi Tanaka