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:
Apr. 14, 2025

Filed:

Feb. 16, 2020
Applicant:

Mitsubishi Materials Corporation, Tokyo, JP;

Inventors:

Makoto Urushihara, Hitachinaka, JP;

Hideaki Sakurai, Naka-gun, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B 7/02 (2005.12); B32B 15/088 (2005.12); H01B 7/00 (2005.12); H01B 13/00 (2005.12); H01B 13/16 (2005.12); H01F 5/06 (2005.12);
U.S. Cl.
CPC ...
H01B 7/0216 (2012.12); H01B 13/0016 (2012.12); H01F 5/06 (2012.12); B32B 15/088 (2012.12); H01B 7/0009 (2012.12); H01B 13/16 (2012.12);
Abstract

An insulated copper wire is an insulated copper wire having a copper wire and an insulating film coating a surface of the copper wire, in which the insulating film contains a polymer material having an amide bond, on a peeled surface formed on a surface of the insulated copper wire by peeling off the insulating film, there more copper atoms bonded to a nitrogen atom or a carbon atom than copper atoms bonded to an oxygen atom, an oxygen-containing layer containing 10 atom % or more of oxygen in a depth direction from the peeled surface is formed, and a film thickness of the oxygen-containing layer is in a range of 2 nm or more and 30 nm or less. An electric coil is formed by winding the above-described insulated copper wire.


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Urushihara, Makoto. (2025). Insulated copper wire and electric coil (U.S. Patent No. 12278025). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12278025

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