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:
Mar. 10, 2026
Filed:
Nov. 24, 2021
Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, JP;
Hirooki Tokoi, Tokyo, JP;
Mizuki Nakahara, Tokyo, JP;
Toshifumi Suzuki, Tokyo, JP;
Masaru Amaike, Tokyo, JP;
Shuuichi Takahashi, Tokyo, JP;
Yasuei Yoneoka, Tokyo, JP;
Toru Sakai, Tokyo, JP;
Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, JP;
Abstract
A rotary electric machine () including: a rotor (); a stator () surrounding a periphery of the rotor (); a first recessed portion () disposed in an inner circumferential surface of a back yoke () of the stator (), and extending in an axial direction of the stator (); and a tooth () having one end fitted in the first recessed portion (), a clearance formed between the first recessed portion () and the one end of the tooth () fitted in the first recessed portion () being smaller in a circumferential direction of the stator () than in a radial direction of the stator ().