Patents by Inventor Satomi Kubo

Satomi Kubo 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).

  • Magnetic backlayer
    Patent number: 7144641
    Abstract: This invention relates to a magnetic backlayer, and provides a magnetic backlayer giving a small spike noise spk and a small media noise Nm and exhibiting a large saturation magnetization Ms to have a good soft magnetic property. The magnetic backlayer is formed on a substrate; has a structure in that soft magnetic layers comprising iron and carbon as main components and nonmagnetic layers are alternately laminated; and has easy axes of magnetization in the in-plane direction of the film and the radius direction of the substrate.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: December 5, 2006
    Assignee: Fujitsu Limited
    Inventors: Hiroyasu Kawano, Takeshi Morikawa, Koji Matsumoto, Satomi Kubo
  • Magnetic backlayer
    Publication number: 20050118460
    Abstract: This invention relates to a magnetic backlayer, and provides a magnetic backlayer giving a small spike noise spk and a small media noise Nm and exhibiting a large saturation magnetization Ms to have a good soft magnetic property. The magnetic backlayer is formed on a substrate; has a structure in that soft magnetic layers comprising iron and carbon as main components and nonmagnetic layers are alternately laminated; and has easy axes of magnetization in the in-plane direction of the film and the radius direction of the substrate.
    Type: Application
    Filed: December 30, 2004
    Publication date: June 2, 2005
    Applicant: FUJITSU LIMITED
    Inventors: Hiroyasu Kawano, Takeshi Morikawa, Koji Matsumoto, Satomi Kubo