Patents by Inventor Soshin Chikazumi

Soshin Chikazumi 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).

  • Method and apparatus for magnetic recording
    Patent number: 6504665
    Abstract: To provide a magnetic recording method and apparatus which utilize a spin vortex as a recording unit and which enables high density recording, spin vortices (2) are recorded on a recording medium (1) such that the spin vortices (2) are aligned to form a recording track (3). The recording medium (1) is formed of a magnetic super-thin film, and positive and negative recorded spin vortices (2) are aligned thereon.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: January 7, 2003
    Assignee: Japan Science and Technology Corporation
    Inventors: Koichi Mukasa, Soshin Chikazumi, Eichi Hirota, Ryosho Nakane, Makoto Sawamura