Inductor devices – Coil or coil turn supports or spacers – Printed circuit-type coil
Reexamination Certificate
2005-02-09
2008-07-08
Mai, Anh (Department: 2832)
Inductor devices
Coil or coil turn supports or spacers
Printed circuit-type coil
C336S223000, C336S232000, C029S602100
Reexamination Certificate
active
07397334
ABSTRACT:
The invention relates to a coil component used as a main component of a common mode choke coil or a transformer and a method of manufacturing the same, and the invention is aimed at providing a coil component with a small size and a low height having high differential transmission characteristics and a method of manufacturing the same. A common mode choke coil has a configuration in which an insulation film, a coil conductor, another insulation film, another coil conductor and another insulation film are stacked in the order listed between magnetic substrates provided opposite to each other. The coil conductors have a coil section which is in a trapezoidal general configuration. A top portion of the coil section is formed in a convex configuration such that it bulges in the form of a convex, and a bottom portion of the coil section is formed in a planar configuration.
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Hishimura Yukari
Ito Tomokazu
Okuzawa Nobuyuki
Sato Yoshikazu
Yoshida Makoto
Mai Anh
Oliff & Berridg,e PLC
TDK Corporation
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