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:
Sep. 05, 2017

Filed:

Jul. 08, 2015
Applicant:

Cyntec Co., Ltd., Hsinchu, TW;

Inventors:

Tsung-Chan Wu, Hsinchu County, TW;

Roger Hsieh, Hsinchu County, TW;

Yi-Min Huang, Hsinchu, TW;

Lan-Chin Hsieh, Kaohsiung, TW;

Yu-Ching Kuo, Miaoli County, TW;

Chia-Hui Lai, Chiayi County, TW;

Assignee:

CYNTEC CO., LTD., Hsinchu, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/02 (2006.01); H01F 27/06 (2006.01); H01F 27/29 (2006.01); H01F 5/00 (2006.01); H01F 27/28 (2006.01); H01F 3/08 (2006.01); H01F 17/04 (2006.01); H01F 27/255 (2006.01);
U.S. Cl.
CPC ...
H01F 27/022 (2013.01); H01F 3/08 (2013.01); H01F 17/045 (2013.01); H01F 27/255 (2013.01); H01F 27/2823 (2013.01); H01F 2017/048 (2013.01);
Abstract

A choke includes a single-piece core made of a same material, the single-piece core having a first board, a second board, and a pillar located between the first and second boards, a winding space located among the first board, the second board and the pillar, wherein the pillar has a non-circular and non-rectangular cross section having a first axis and a second axis substantially perpendicularly intersecting with each other at a center of the cross section of the pillar, and wherein a circumference of the cross section of the pillar includes two arc edges, four first substantially straight edges substantially parallel to the first axis, and two second substantially straight edges substantially parallel to the second axis, each of the first substantially straight edges being a joint of and in direct contact with one of the arc edges and one of the second substantially straight edges.


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