Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2008-05-20
2008-05-20
Kim, Paul D. (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S602100, C029S605000, C029S608000, C264S250000, C264S272190, C336S083000, C336S175000, C336S192000, C336S200000, C336S212000, C336S233000
Reexamination Certificate
active
07373715
ABSTRACT:
A wire-wound type chip coil can take various inductance values while maintaining its outer dimension at a specified fixed value. A chip coil is formed by winding at least two conductive wires regularly in a single layer around a core made of a magnetic material and firmly connecting both ends of each conductive wire to terminal electrodes disposed on respective flanges of the core. This makes it possible to obtain a great current capacity. Furthermore, the inductance decreases because of an increase in the magnetic path length. A great number of different inductance values can be easily obtained by properly selecting parameters including the number of substantially parallel conductive wires, the diameter of each conductive wire, and the number of turns.
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Hirai Shinya
Toi Takaomi
Tsubana Katsuhiko
Yasuzawa Hiroyuki
Keating & Bennett LLP
Kim Paul D.
Murata Manufacturing Co. Ltd.
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