Patents by Inventor Masanori SAMEJIMA

Masanori SAMEJIMA 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).

  • Thin film magnet and method for manufacturing thin film magnet
    Patent number: 10573447
    Abstract: A thin film magnet includes a substrate, an oxidation-inhibiting layer in an amorphous state disposed on an upper surface of the substrate, a first magnetic layer disposed on the oxidation-inhibiting layer, an intermediate layer disposed on the first magnetic layer, a second magnetic layer disposed on the intermediate layer, and a second oxidation-inhibiting layer in an amorphous state disposed above the second magnetic layer. The intermediate layer contains metal particles. The metal particles are diffused in the first magnetic layer and the second magnetic layer. The concentration of the metal particles in a part of the first magnetic layer decreases as the distance from the intermediate layer to the part of the first magnetic layer increases. The concentration of the metal particles in a part of the second magnetic layer decreases as the distance from the intermediate layer to the part of the second magnetic layer increases.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: February 25, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yuji Murashima, Masanori Samejima
  • THIN FILM MAGNET AND METHOD FOR MANUFACTURING THIN FILM MAGNET
    Publication number: 20180061545
    Abstract: A thin film magnet includes a substrate, an oxidation-inhibiting layer in an amorphous state disposed on an upper surface of the substrate, a first magnetic layer disposed on the oxidation-inhibiting layer, an intermediate layer disposed on the first magnetic layer, a second magnetic layer disposed on the intermediate layer, and a second oxidation-inhibiting layer in an amorphous state disposed above the second magnetic layer. The intermediate layer contains metal particles. The metal particles are diffused in the first magnetic layer and the second magnetic layer. The concentration of the metal particles in a part of the first magnetic layer decreases as the distance from the intermediate layer to the part of the first magnetic layer increases. The concentration of the metal particles in a part of the second magnetic layer decreases as the distance from the intermediate layer to the part of the second magnetic layer increases.
    Type: Application
    Filed: March 14, 2016
    Publication date: March 1, 2018
    Inventors: Yuji MURASHIMA, Masanori SAMEJIMA