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. 10, 1996
Filed:
Jun. 13, 1994
Manabu Takeuchi, Daito, JP;
Mikio Hirano, Tondabayashi, JP;
Yoshikazu Kinashi, Tsuzuki-gun, JP;
Yukitoshi Wada, Katano, JP;
Matsushita Electric Industrial Co., Ltd., Osaka-fu, JP;
Abstract
A stator of a dynamo-electric machine includes core pieces obtained by laminating iron plates divided in a circumferential direction per pole-tooth unit and having projecting and recessed engaging parts at their dividing faces, and then welding the iron plates by laser at their inner and outer peripheries. A winding part is formed around each pole-tooth unit of the core pieces. A predetermined number of the core pieces are bonded into the loop, with the projecting and recessed engaging parts engaged with each other and rigidly welded at outer peripheries of bonding faces by laser in a laminating direction.