Patents by Inventor Michinobu Fujisawa

Michinobu Fujisawa 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 RECORDING MEDIUM AND PROCESS OF PRODUCING THE SAME
    Publication number: 20090244774
    Abstract: A magnetic recording medium includes a support and a magnetic layer containing a ferromagnetic powder and a binder, and has a cut surface along an edge of the magnetic recording medium, wherein the cut surface of the magnetic recording medium has a shear region whose length in a thickness direction of the magnetic recording medium is at least 50% of the thickness of the magnetic recording medium.
    Type: Application
    Filed: March 19, 2009
    Publication date: October 1, 2009
    Applicant: FUJIFILM CORPORATION
    Inventors: Kyouhisa UCHIUMI, Michinobu FUJISAWA
  • Magnetic field application apparatus, magnetic transfer apparatus and method for producing magnetic recording medium
    Patent number: 7369337
    Abstract: A magnetic field application apparatus includes a pair of magnetic field application means, each of which is arranged, at least during application of a magnetic field, on either side of a magnetic field application target so as to face each other, and which generate a magnetic field in a predetermined direction. Each of the magnetic field application means includes a pair of magnetic portions which generate a magnetic field in a desired direction from one of the magnetic portions toward the other magnetic portion, and of which the polarities on the side facing the magnetic field application target are different from each other. Each of the pair of magnetic portions is formed so that magnetic force applied to the magnetic field application target becomes weaker stepwise or continuously from the side of the magnetic portion, facing the other magnetic portion, toward the opposite side thereof.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: May 6, 2008
    Assignee: Fujifilm Corporation
    Inventor: Michinobu Fujisawa
  • Magnetic field application apparatus, magnetic transfer apparatus and method for producing magnetic recording medium
    Publication number: 20060158818
    Abstract: A magnetic field application apparatus includes a pair of magnetic field application means, each of which is arranged, at least during application of a magnetic field, on either side of a magnetic field application target so as to face each other, and which generate a magnetic field in a predetermined direction. Each of the magnetic field application means includes a pair of magnetic portions which generate a magnetic field in a desired direction from one of the magnetic portions toward the other magnetic portion, and of which the polarities on the side facing the magnetic field application target are different from each other. Each of the pair of magnetic portions is formed so that magnetic force applied to the magnetic field application target becomes weaker stepwise or continuously from the side of the magnetic portion, facing the other magnetic portion, toward the opposite side thereof.
    Type: Application
    Filed: January 17, 2006
    Publication date: July 20, 2006
    Inventor: Michinobu Fujisawa