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.
Patent No.:
Date of Patent:
Dec. 29, 2015
Filed:
Sep. 29, 2014
Furukawa Electric Co., Ltd., Tokyo, JP;
Furukawa Magnet Wire Co., Ltd., Tokyo, JP;
Daisuke Muto, Tokyo, JP;
Hideo Fukuda, Tokyo, JP;
Keiichi Tomizawa, Tokyo, JP;
Satoshi Naka, Tokyo, JP;
FURUKAWA ELECTRIC CO., LTD., Tokyo, JP;
FURUKAWA MAGNET WIRE CO., LTD., Tokyo, JP;
Abstract
An inverter surge-resistant insulated wire, having at least one baked enamel layer around the outer periphery of a conductor, and an extrusion-coated resin layer at the outside of the baked enamel layer, wherein a total thickness of the baked enamel layer and the extrusion-coated resin layer is 50 μm or more, a thickness of the baked enamel layer is 60 μm or less, and a thickness of the extrusion-coated resin layer is 200 μm or less, wherein the minimum of tensile elastic modulus of the extrusion-coated resin layer at a range of 25 to 250° C. is 100 MPa or more, wherein a dielectric constant of an insulation layer having a combination of the baked enamel layer and the extrusion-coated resin layer is 3.5 or less at 25° C. and 5.0 or less at 250° C., and wherein a relation between dielectric constant (∈1') of the baked enamel layer at 250° C. and dielectric constant (∈2′) of the extrusion-coated resin layer at 250° C. satisfies (∈2′/∈1′)>1.