Communications: radio wave antennas – Antennas – Including magnetic material
Reexamination Certificate
2011-08-02
2011-08-02
Owens, Douglas W. (Department: 2821)
Communications: radio wave antennas
Antennas
Including magnetic material
C343S787000, C343S741000, C343S866000, C343S867000
Reexamination Certificate
active
07990331
ABSTRACT:
In an antenna coil including a first magnetic core, a second magnetic core, and a flexible board, coil conductors are provided on a surface of the flexible board. By winding the flexible board around the first magnetic core and the second magnetic core, a first coil portion is disposed around the first magnetic core, and a second coil portion is disposed around the second magnetic core. The winding direction of the second coil portion is opposite to that of the first coil portion. The first coil portion and the second coil portion are connected to define one coil as a whole.
REFERENCES:
patent: 4148036 (1979-04-01), Miller
patent: 6384799 (2002-05-01), Otomo et al.
patent: 7508350 (2009-03-01), Hein et al.
patent: 7812777 (2010-10-01), Yosui et al.
Yosui et al.; “Antenna Coil to Be Mounted on a Circuit Board and Antenna Device”; U.S. Appl. No. 11/843,901, filed Aug. 23, 2007.
Ito Hiromitsu
Kubo Hiroyuki
Yosui Kuniaki
Duong Dieu H
Keating & Bennett LLP
Murata Manufacturing Co. Ltd.
Owens Douglas W.
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