Patents by Inventor Kiyofumi Nakane

Kiyofumi Nakane 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).

  • Patent number: 5940655
    Abstract: An image heating apparatus includes a movable member which is movable with a recording material; magnetic flux generating means for generating a magnetic flux, wherein the magnetic flux generated by the magnetic flux generating means generates an eddy current which in turn generates heat in the movable member to heat an image an a recording material; and a temperature detecting member for detecting a temperature of the movable member, wherein the temperature detecting member is provided outside a predetermined heat generation region of the movable member.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: August 17, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Sano, Hiroshi Mano, Atsuyoshi Abe, Kiyofumi Nakane
  • Patent number: 5819150
    Abstract: An image heating apparatus is constructed by a heat generating member having a conductive layer and a magnetic field generating apparatus for generating a magnetic field. The magnetic field generating apparatus has an exciting coil and an electric power is supplied from a power source to the exciting coil by a switching circuit. An eddy current is generated in the heating member by the magnetic field generated by the magnetic field generating apparatus, the heat generating member generates a heat by the eddy current, and an image on a recording material is heated by the heat. The exciting coil has a first coil portion and a second coil portion for matching the impedances of the first coil portion and the heat generating member. The first coil portion and the second coil portion are neighboring. The magnetic coupling between the second coil portion and the heat generating member is weaker than that between the first coil portion and the heat generating member.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: October 6, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Minoru Hayasaki, Hiroshi Mano, Atsuyoshi Abe, Kiyofumi Nakane