Compact electromagnetic component and multilayer winding...

Details Compact electromagnetic component and multilayer winding... Compact electromagnetic component and multilayer winding...

2009-07-30

2010-12-14

Mai, Anh T (Department: 2832)

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

C336S223000, C336S232000

Reexamination Certificate

active

07852187

ABSTRACT:
An electromagnetic component has a multilayer winding. The multilayer winding has a stack body. The stack body has multiple sub-stacks and at least one second metal ring, each of which is interposed between two adjacent sub-stacks of the stack body. Each sub-stack has identical upper and lower first metal rings. Further, each second metal ring has identical upper and lower half rings. Therefore, the multilayer winding only uses two forms of the metal rings, so manufacturing costs will be decreased.

REFERENCES:
patent: 4689594 (1987-08-01), Kawabata et al.
patent: 5032815 (1991-07-01), Kobayashi et al.
patent: 6774757 (2004-08-01), Fujiyoshi et al.
patent: 6980074 (2005-12-01), Jitaru
patent: 7453344 (2008-11-01), Maeda et al.
patent: 7460002 (2008-12-01), Estrov
patent: 2007/0176722 (2007-08-01), Podlisk et al.

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