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:
Aug. 27, 2013
Filed:
Mar. 27, 2008
Hideo Fukuda, Chiyoda-ku, JP;
Makoto Onodera, Chiyoda-ku, JP;
Dai Fujiwara, Chiyoda-ku, JP;
Minoru Saito, Chiyoda-ku, JP;
Tsuneo Aoi, Chiyoda-ku, JP;
Isamu Kobayashi, Chiyoda-ku, JP;
Junichi Ishizuka, Chiyoda-ku, JP;
Noriyoshi Fushimi, Chiyoda-ku, JP;
Hideo Fukuda, Chiyoda-ku, JP;
Makoto Onodera, Chiyoda-ku, JP;
Dai Fujiwara, Chiyoda-ku, JP;
Minoru Saito, Chiyoda-ku, JP;
Tsuneo Aoi, Chiyoda-ku, JP;
Isamu Kobayashi, Chiyoda-ku, JP;
Junichi Ishizuka, Chiyoda-ku, JP;
Noriyoshi Fushimi, Chiyoda-ku, JP;
The Furukawa Electric., Ltd., Tokyo, JP;
Abstract
A multilayer insulated wire, comprising: a conductor; and at least three extruded insulation layers covering the conductor, which extruded insulation layers comprise: (A) an outermost layer composed of an extruded covering layer of a resin whose elongation rate after heat treatment by immersion in a solder at 150° C. for two seconds is at least 290% and at least equal to elongation rate before the heat treatment; (B) an innermost layer comprising a resin whose elongation rate after heat treatment by immersion in a solder at 150° C. for two seconds is at least 290% and at least equal to elongation rate before the heat treatment; and (C) an insulation layer that is placed between the outermost layer and the innermost layer and that is composed of an extruded covering layer of a crystalline resin with a melting point of at least 280° C. or an amorphous resin with a glass transition temperature of at least 200° C.; and a transformer having the multilayer insulated wire.