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:
Jun. 23, 2026

Filed:

Jul. 21, 2022
Applicant:

3m Innovative Properties Company, St. Paul, MN (US);

Inventors:

Sang-Jun Mo, Hwaseong-si, KR;

Seong-Woo Woo, Gwangju-si, KR;

Jinwook Kim, Hwaseong-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 5/00 (2006.01); H01F 1/34 (2006.01); H01F 27/32 (2006.01); H01F 41/063 (2016.01);
U.S. Cl.
CPC ...
H01F 27/323 (2013.01); H01F 1/34 (2013.01); H01F 41/063 (2016.01);
Abstract

The disclosure relates to a coil, a planar coil, and a method for making a coil. Specifically, according to an embodiment of the disclosure, a coil includes: main coil surfaces which are opposite each other and are substantially planar; and a multilayer film which is wound to form a plurality of loops which are substantially concentric, and the plurality of loops include an innermost loop including a first longitudinal direction end of the coil, and an outermost loop including a second longitudinal direction end of the coil, and the multilayer film includes a plurality of first electro-conductive layers which alternate with each other, and one or more second electrical insulation layer.


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