Patents by Inventor Jun Fujie

Jun Fujie 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).

  • Induction heating coil for shaft member having multiple steps and heating method
    Patent number: 7442906
    Abstract: In an induction heating coil for heating a shaft member having multiple steps, annular conductors are separately disposed in the axis direction, the annular conductors having inner diameters so as to form predetermined gaps with outer peripheries of heating portions of the shaft member, the lengths of annular conductors (1, 2, and 3) are set so that the areas of the respective heating portions are approximately equal to each other, and the annular conductors are connected to each other in series, so that the respective step shaft portions of the shaft member are uniformly heated. The annular conductors described above may be formed to have shapes in conformity with the shapes of the heating portions of the shaft member and may be formed to have a step shape corresponding to steps of the shaft member having different outer diameters.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: October 28, 2008
    Assignee: Neturen Co., Ltd.
    Inventors: Yoshimasa Tanaka, Takeshi Endoh, Yutaka Kiyosawa, Fumiaki Ikuta, Takashi Horino, Masayuki Komatsu, Jun Fujie, Takeshi Yoshikawa
  • Induction heating coil and induction method for multi-step shaft member
    Publication number: 20070000916
    Abstract: In an induction heating coil for heating a shaft member having multiple steps, annular conductors are separately disposed in the axis direction, the annular conductors having inner diameters so as to form predetermined gaps with outer peripheries of heating portions of the shaft member, the lengths of annular conductors 1, 2, and 3 are set so that the areas of the respective heating portions are approximately equal to each other, and the annular conductors are connected to each other in series, so that the respective step shaft portions of the shaft member are uniformly heated. The annular conductors described above may be formed to have shapes in conformity with the shapes of the heating portions of the shaft member and may be formed to have a step shape corresponding to steps of the shaft member having different outer diameters.
    Type: Application
    Filed: April 8, 2005
    Publication date: January 4, 2007
    Applicant: NETUREN CO., LTD.
    Inventors: Yoshimasa Tanaka, Takeshi Endoh, Yutaka Kiyosawa, Fumiaki Ikuta, Takashi Horino, Masayuki Komatsu, Jun Fujie, Takeshi Yoshikawa