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:
Apr. 28, 2020
Filed:
Apr. 03, 2019
Toshiba Industrial Products and Systems Corporation, Kawasaki-shi, JP;
Toshiba Infrastructure Systems & Solutions Corporation, Kawasaki-shi, JP;
Masaaki Matsumoto, Mie-gun, JP;
Takashi Araki, Mie-gun, JP;
Yuji Yamamoto, Mie-gun, JP;
Katsutoku Takeuchi, Kokubunji, JP;
Makoto Matsushita, Fuchu, JP;
Toshio Hasebe, Hachioji, JP;
Toshiba Industrial Products and Systems Corporation, Kawasaki-shi, JP;
Toshiba Infrastructure Systems & Solutions Corporation, Kawasaki-shi, JP;
Abstract
A synchronous reluctance type rotary electric machine of an embodiment has a rotor core. The rotor core includes a plurality of poles, multi-layered hollow parts having a convex shape toward a side radially inward formed for each pole in cross section, and a bridge formed between each of the hollow parts and an outer circumferential surface thereof. When a boundary between two adjacent poles is a pole boundary, a groove is formed on at least one of both sides sandwiching the pole boundary at positions other than on the pole boundary on the outer circumferential surface of the rotor core.