The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 2018
Filed:
Jun. 24, 2015
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Abstract
A common mode noise filter includes a first coil and a second coil. The first coil is formed in a plurality of insulating layers and includes a spiral first coil conductor and a spiral second coil conductor. The second coil is formed in the plurality of insulating layers and includes a spiral third coil conductor and a spiral fourth coil conductor. The first and third coil conductors are magnetically coupled to form a first common mode filter unit, and the second and fourth coil conductors are magnetically coupled to form a second common mode filter unit. As viewed from above, a first direction in which currents flow through the first and third coil conductors in the first common mode filter unit is opposite to a second direction in which currents flow through the second and fourth coil conductors in the second common mode filter unit.