Inductor devices – Coils of special configuration – Planar type
Reexamination Certificate
2009-06-24
2011-11-15
Mai, Anh (Department: 2832)
Inductor devices
Coils of special configuration
Planar type
C336S200000, C336S223000, C336S234000
Reexamination Certificate
active
08058964
ABSTRACT:
In an open magnetic circuit type laminated coil component having a laminate formed by laminating a magnetic layer and a non-magnetic layer or a low magnetic permeability layer and a coil conductor disposed in the laminate, a zirconium oxide is included in the non-magnetic layer or the low magnetic permeability layer forming the laminate. The content of the zirconium oxide in the low magnetic permeability layer is in the range of about 0.02 wt % to about 1.0 wt %. A zirconium oxide is also included in the magnetic layer in a proportion of less than about 1.0 wt %. As the magnetic layer, a material including Ni—Cu—Zn ferrite as a main component is preferably used. As the non-magnetic layer or the low magnetic permeability layer, a material including Cu—Zn ferrite as a main component is preferably used.
REFERENCES:
patent: 5349743 (1994-09-01), Grader et al.
patent: 6956455 (2005-10-01), Tokuda et al.
patent: 2001/0028538 (2001-10-01), Watanabe et al.
patent: 2001/0033219 (2001-10-01), Iha et al.
patent: 2004/0108934 (2004-06-01), Choi et al.
patent: 2006/0176138 (2006-08-01), Ito et al.
patent: 1739695 (2007-01-01), None
patent: 6-96940 (1994-04-01), None
patent: 7-57922 (1995-03-01), None
patent: 07057922 (1995-03-01), None
patent: 11-97245 (1999-04-01), None
patent: 2004-311944 (2004-11-01), None
patent: 2006-216916 (2006-08-01), None
Official Communication issued in International Patent Application No. PCT/JP2008/050808, mailed on Apr. 15, 2008.
Hinson Ronald
Keating & Bennett LLP
Mai Anh
Murata Manufacturing Co. Ltd.
LandOfFree
Laminated coil component does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Laminated coil component, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laminated coil component will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4262185