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.

Date of Patent:
Mar. 24, 2015

Filed:

Sep. 07, 2012
Applicants:

Yu Chia Chang, Taichung, TW;

Cheng Yi Wang, New Taipei, TW;

Shin Min Tai, Taoyuan County, TW;

Inventors:

Yu Chia Chang, Taichung, TW;

Cheng Yi Wang, New Taipei, TW;

Shin Min Tai, Taoyuan County, TW;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 5/00 (2006.01); H01F 27/30 (2006.01); H01L 27/08 (2006.01); H01F 17/00 (2006.01);
U.S. Cl.
CPC ...
H01F 17/0013 (2013.01); H01F 17/0033 (2013.01); H01F 2017/0066 (2013.01); H01F 2017/0093 (2013.01);
Abstract

A common mode filter includes a first coil, a second coil, a first insulating layer separating the first coil from the second coil, a third coil serially connected with the first coil, a second insulating layer separating the second coil from the third coil, a fourth coil serially connected with the second coil, and a third insulating layer separating the third coil from the fourth coil. The second coil is between the first and third coils, and the third coil is between the second and fourth coils. At least one of the first insulating layer, the second insulating layer and the third insulating layer may include magnetic material.


Find Patent Forward Citations

Quick Actions:

Chang, Yu. (2015). Common mode filter with multi-spiral layer structure and method of manufacturing the same (U.S. Patent No. 8988181). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8988181

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