Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Toshikazu Endo0
Masami Sasaki0
Minoru Takaya0
Takashi Kajino0
Hisashi Kobuke0
Kazuhiko Itoh0
Date of Patent
January 23, 2007
0Patent Application Number
107997170
Date Filed
March 15, 2004
0Patent Primary Examiner
Patent abstract
A core material-including organic core board or inorganic sintered board 1 having a plurality of band-shaped conductor patterns 2 formed on its front and rear surfaces is sliced in a direction crossing the band-shaped conductor patterns 2. End portions of the band-shaped conductor patterns 2 exposed on each of cut surfaces of the core board 1 are connected to one another by bridging conductor patterns formed on the cut surfaces. In this manner, at least one helical coil is provided. The inner diameter of the helical coil can be kept constant while coil pitch accuracy can be kept good.
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