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:
Oct. 07, 2025
Filed:
Mar. 31, 2023
Applicant:
Okuma Corporation, Aichi, JP;
Inventors:
Takanori Yokochi, Aichi, JP;
Tatsuya Shizu, Aichi, JP;
Assignee:
OKUMA, Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 41/03 (2006.01);
U.S. Cl.
CPC ...
H02K 41/031 (2013.01);
Abstract
A linear motor includes a stator having a plurality of salient poles, and a slider configured to move along a direction of extension of the stator. A U-phase coil core of the slider includes a yoke, a plurality of teeth, permanent magnets provided in respective magnet-receiving cavities located between the teeth, coil-receiving cavities formed on outer sides of the teeth set, and a U-phase coil wound in the coil-receiving cavities. The plurality of teeth project radially from the yoke toward the stator, and the width of each of the teeth as measured at the yoke side is narrower than its width as measured at the stator side.