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:
Jul. 12, 2022
Filed:
Sep. 24, 2019
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Denso Corporation, Kariya, JP;
Ken Shirai, Miyoshi, JP;
Yasuyuki Hirao, Okazaki, JP;
Masashi Matsumoto, Nagoya, JP;
Hiroaki Takeda, Kariya, JP;
Ryosuke Maruyama, Kariya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A method of removing an insulating coating layer of coil wiring includes: a fragmentation step in which a line-shaped region of the insulating coating layer, which separates a removal-planned portion and a remain-planned portion of the insulating coating layer, is removed; a laser irradiation step in which laser light which transmits through the insulating coating layer but which is absorbed by a coil wiring is irradiated from a side of an outer surface of the removal-planned portion toward a boundary of the coil wiring with the insulating coating layer, to carbonize a boundary portion between the insulating coating layer and the coil wiring of the removal-planned portion by generation of heat of the coil wiring; and a coating turn-over step in which air is blown onto the removal-planned portion to turn over and blow off the removal-planned portion.