Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2005-03-01
2005-03-01
Tugbang, A. Dexter (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S605000, C029S608000, C029S825000, C156S169000, C174S12000C, C336S08400R, C427S116000
Reexamination Certificate
active
06859994
ABSTRACT:
A method for manufacturing an inductor is performed in such a manner that the surface of a metal wire provided with an insulating film thereon is coated with a thermal melting resin. The thickness of the thermal melting resin is, for example, approximately 1 μm. As the thermal melting resin, a thermoplastic resin or a thermosetting resin, such as a polyimide resin or an epoxy resin, containing 85 wt % of a powdered ferrite is used. This coated metal wire is densely wound to form a solenoid-type coil conductor. Next, the thermal melting resin is softened by a heat treatment at, for example, 180° C. and is then solidified by spontaneous cooling. Accordingly, the portions of the coil conductor adjacent to each other are bonded together by the thermal melting resin.
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Fukutani Iwao
Hamatani Junichi
Oshima Hisato
Saito Ken-ichi
Shikama Takeshi
Keating & Bennett LLP
Murata Manufacturing Co. Ltd.
Nguyen Donghai D.
Tugbang A. Dexter
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