Patents by Inventor Takashi Fujimi

Takashi Fujimi 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).

  • Winding jig, polygonal coil, and method of manufacturing polygonal coil
    Patent number: 7475843
    Abstract: A polygonal coil having a substantially square shape is manufactured by winding a conductive wire in the diameter direction of the core on the core in an overlapping manner by the use of a winding jig in which a first collar portion and a second collar portion are disposed at both ends of a core so as to be opposed to each other and four rod-shaped protrusions are disposed on a surface of the first collar portion opposed to the second collar portion so as to protrude in a radial shape centered on an end of the core,. As a result, it is possible to obtain a polygonal coil with high precision.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: January 13, 2009
    Assignee: Yonezawa Electric Wire Co., Ltd.
    Inventors: Takashi Ueki, Teruo Tamada, Teiji Wagatsuma, Takashi Fujimi, Koichi Igarashi
  • Winding jig polygonal coil, and method of manufacturing polygonal coil
    Publication number: 20080223974
    Abstract: A polygonal coil having a substantially square shape is manufactured by winding a conductive wire in the diameter direction of the core on the core in an overlapping manner by the use of a winding jig in which a first collar portion and a second collar portion are disposed at both ends of a core so as to be opposed to each other and four rod-shaped protrusions are disposed on a surface of the first collar portion opposed to the second collar portion so as to protrude in a radial shape centered on an end of the core. As a result, it is possible to obtain a polygonal coil with high precision.
    Type: Application
    Filed: March 7, 2008
    Publication date: September 18, 2008
    Inventors: Takashi Ueki, Teruo Tamada, Teiji Wagatsuma, Takashi Fujimi, Koichi Igarashi
  • Coil for cellular telephone
    Patent number: D596564
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: July 21, 2009
    Assignee: Yonezawa Electric Wire Co., Ltd.
    Inventors: Takashi Ueki, Teruo Tamada, Teiji Wagatsuma, Takashi Fujimi, Koichi Igarashi
  • Coil for wireless charging
    Patent number: D669031
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: October 16, 2012
    Assignee: Yonezawa Electric Wire Co., Ltd.
    Inventors: Teiji Wagatsuma, Koichi Igarashi, Takashi Fujimi