Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Teruo Tamada0
Takashi Fujimi0
Takashi Ueki0
Teiji Wagatsuma0
Koichi Igarashi0
Date of Patent
January 13, 2009
Patent Application Number
12075132
Date Filed
March 7, 2008
Patent Primary Examiner
Patent 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.
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