Coil comprising several coil branches and micro-inductor...

Details Coil comprising several coil branches and micro-inductor... Coil comprising several coil branches and micro-inductor...

2007-10-10

2008-09-09

Mai, Anh T (Department: 2832)

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

C336S223000, C336S232000, C336S189000, C336S190000

Reexamination Certificate

active

07423509

ABSTRACT:
The coil comprises a plurality of non-joined turns, each turn comprising a rectangular bottom flat section in a bottom plane and a rectangular top flat section in a top plane and two rising sections. The turns fill almost all of the enveloping surface of the coil, a minimum isolating gap separating the adjacent turns. The top and bottom sections corresponding to one and the same turn are aligned with respect to one another and have a larger width than the width of the corresponding rising sections. The turns constitute a plurality of substantially parallel coil branches, rising sections of two adjacent branches arranged between the two adjacent branches being arranged alternately in a single plane.

REFERENCES:
patent: 2709791 (1955-05-01), Anderson
patent: 3798959 (1974-03-01), Astle et al.
patent: 4810989 (1989-03-01), Brandenberg et al.
patent: 5939966 (1999-08-01), Shin'Ei
patent: 6114937 (2000-09-01), Burghartz et al.
patent: 6147584 (2000-11-01), Shin'el
patent: 6367143 (2002-04-01), Sugimura
patent: 6380727 (2002-04-01), Jitaru
patent: 6833781 (2004-12-01), Padmanabhan et al.
patent: 7194799 (2007-03-01), Liang et al.
patent: 2007/0008058 (2007-01-01), Hashimoto
patent: 101 04 648 (2002-01-01), None
patent: 58137206 (1983-08-01), None
Von Der Weth et al., “Numerical Inductor Optimization”,Transactions of the Magnetics Society of Japan, vol. 2, pp. 361-366, Dec. 1, 2002.

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