Patents by Inventor Norifumi Fujii

Norifumi Fujii 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 of the magnetic loading of a sintering material
    Patent number: 6581779
    Abstract: In a method of the magnetic loading of a sintering material, magnetically susceptible sinterable substances of high magnetization and fine substances of slidable dropping at low speed are segregated in great amounts in an upper portion of a sintering material layer deposited on a pallet. More of magnetically susceptible sinterable substances such as mill scale, returned ore and the like of good magnetic attachment and fine substances of low drop speed are caused to be segregated in the upper portion of that layer. A magnetic force is applied to a starting sintering material, during movement of the latter having been facilitated in its particle size segregation on a sloping chute, by means of a cylindrical magnetic drum having built therein a permanent magnet and disposed downwardly of the sloping chute.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: June 24, 2003
    Assignee: Kawasaki Steel Corporation
    Inventors: Nobuyuki Oyama, Kouichi Nushiro, Katsutoshi Igawa, Seiji Taguchi, Norifumi Fujii, Kenji Takihira, Rikio Ono, Takahiro Kumeda
  • Method of the magnetic loading of a sintering material
    Publication number: 20020104783
    Abstract: In a method of the magnetic loading of a sintering material, magnetically susceptible sinterable substances of high magnetization and fine substances of slidable dropping at low speed are segregated in great amounts in an upper portion of a sintering material layer deposited on a pallet. More of magnetically susceptible sinterable substances such as mill scale, returned ore and the like of good magnetic attachment and fine substances of low drop speed are caused to be segregated in the upper portion of that layer. A magnetic force is applied to a starting sintering material, during movement of the latter having been facilitated in its particle size segregation on a sloping chute, by means of a cylindrical magnetic drum having built therein a permanent magnet and disposed downwardly of the sloping chute.
    Type: Application
    Filed: April 26, 2001
    Publication date: August 8, 2002
    Inventors: Nobuyuki Oyama, Kouichi Nushiro, Katsutoshi Igawa, Seiji Taguchi, Norifumi Fujii, Kenji Takihira, Rikio Ono, Takahiro Kumeda
  • Method of feeding sintering material by use of magnetic forces
    Patent number: 6349833
    Abstract: In a method of the magnetic loading of a sintering material, magnetically susceptible sinterable substances of high magnetization and fine substances of slidable dropping at low speed are segregated in great amounts in an upper portion of a sintering material layer deposited on a pallet. More of magnetically susceptible sinterable substances such as mill scale, returned ore and the like of good magnetic attachment and fine substances of low drop speed are caused to be segregated in the upper portion of that layer. A magnetic force is applied to a starting sintering material, during movement of the latter having been facilitated in its particle size segregation on a sloping chute, by use of a cylindrical magnetic drum having built therein a permanent magnet and disposed downwardly of the sloping chute.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: February 26, 2002
    Assignee: Kawasaki Steel Corporation
    Inventors: Nobuyuki Oyama, Kouichi Nushiro, Katsutoshi Igawa, Seiji Taguchi, Norifumi Fujii, Kenji Takihira, Rikio Ono, Takahiro Kumeda