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:
Aug. 08, 2017

Filed:

Apr. 30, 2015
Applicants:

Furukawa Electric Co., Ltd., Tokyo, JP;

Furukawa Magnet Wire Co., Ltd., Tokyo, JP;

Inventors:

Makoto Oya, Tokyo, JP;

Makoto Onodera, Tokyo, JP;

Keiichi Tomizawa, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B 3/30 (2006.01); H01B 13/14 (2006.01); H01F 5/06 (2006.01); H01B 7/02 (2006.01); H01B 13/06 (2006.01);
U.S. Cl.
CPC ...
H01B 3/30 (2013.01); H01B 7/0283 (2013.01); H01B 13/065 (2013.01); H01B 13/14 (2013.01); H01B 13/142 (2013.01); H01F 5/06 (2013.01);
Abstract

An insulated wire having a conductor, a foamed insulating layer containing a thermosetting resin having cells, coated directly or indirectly onto the outer periphery of the conductor and an outer insulating layer containing a thermoplastic resin having a melting point of 240° C. or higher when the thermoplastic resin is a crystalline resin or a thermoplastic resin having a glass transition temperature of 240° C. or higher when the thermoplastic resin is a non-crystalline resin; electrical equipment using the insulated wire; and a method of producing the insulated wire, containing a step of forming a foamed insulating layer by applying a varnish for forming the foamed insulating layer on the outer periphery of a conductor, by generating foams during baking and a step of forming an outer insulating layer by extrusion-molding a thermoplastic resin composition for forming the outer insulating layer on the outer periphery of the foamed insulating layer.


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