US Patent 7091816 Common-mode choke coil
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Patent Inventor Names
Takeshi Okumura0
Tomokazu Ito0
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Patent abstract
A common-mode choke coil comprises an insulating layer and first and second coil conductors. The first and second coil conductors are laminated with the insulating layer interposed therebetween and are magnetically coupled to each other. A width W (mm) and a length L (mm) of at least one coil conductor in the first and second coil conductors satisfy the relational expression of:√{square root over (L/W)}<(7.6651−fc)/0.1385where fc (MHz) is the cutoff frequency with respect to differential-mode noise.
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US Patent 07091816 Common-mode choke coil US Patent 7091816 Common-mode choke coil
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Patent Number
07091816
Patent Number
7091816
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US Patent 07091816 Common-mode choke coil
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Patent jurisdiction
Patent number
07091816
Date of patent
August 15, 2006
Patent application number
11368657
Date Filed
March 7, 2006
Patent primary examiner
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