Inductor devices – Coil or coil turn supports or spacers – Printed circuit-type coil
Reexamination Certificate
2005-07-26
2005-07-26
Mai, Anh (Department: 2832)
Inductor devices
Coil or coil turn supports or spacers
Printed circuit-type coil
C336S223000, C336S232000
Reexamination Certificate
active
06922129
ABSTRACT:
A multilayered circuit board according to the present invention includes at least first and second stacked insulating layers. The first insulating layer has thereon a first electric conductor made of a conductive film constituting an inductor and a first electrode made of a conductive film constituting a capacitor. The second insulating layer has thereon a second electrode made of a conductive film constituting a capacitor. The first and second insulating layers are stacked such that the first and second electrodes are opposed to each other through the insulating layers. Therefore this provides a circuit board having a capacitor and an inductor through the use of the two insulating layers, thus providing an inexpensive thin circuit board with small parts count and high work-efficiency compared with the use of three insulating layers in a related art.
REFERENCES:
patent: 6403199 (2002-06-01), Mori et al.
patent: 6472074 (2002-10-01), Sugimoto
patent: 2002/0030573 (2002-03-01), Mori et al.
patent: 2002/0037804 (2002-03-01), Sugimoto et al.
patent: 2004/0029701 (2004-02-01), Chikagawa et al.
patent: 11-103229 (1999-04-01), None
Alps Electric Co. ,Ltd.
Brinks Hofer Gilson & Lione
Mai Anh
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