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:
May. 16, 2006
Filed:
May. 20, 2004
Masayuki Kobayashi, Kasugai, JP;
Eiji Iwanari, Chiryu, JP;
Masayuki Kobayashi, Kasugai, JP;
Eiji Iwanari, Chiryu, JP;
Denso Corporation, , JP;
Abstract
A method of manufacturing a commutator of a rotary electric machine includes a step of forming a first unitary material having nail portions, a step of forming a second unitary material for the commutator segments, a step of fixing the first unitary material and the second unitary material together to form a pre-commutator unit so that the nails extend radially outward from the periphery of the pre-commutator unit, a step of inserting the pre-commutator unit between a pair of dies so that the dies hold the nails without a gap, and a step of charging liquid resinous material into the inside of the dies to mold the pre-commutator unit.