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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.:

US 12756267 B1

PDFFull Text
Date of Patent:
Oct. 06, 2026

Filed:

Dec. 22, 2021

Rotor, brushless motor, and method for manufacturing rotor

Applicants:

Citizen Chiba Precision Co., Ltd., Yachiyo, JP;

Citizen Watch Co., Ltd., Nishitokyo, JP;

Inventors:

Kazunari Ogata, Yachiyo, JP;

Takehiro Kariya, Yachiyo, JP;

Tomohiro Seimiya, Yachiyo, JP;

Makoto Doi, Yachiyo, JP;

Shougo Kimura, Yachiyo, JP;

Akito Takenaka, Yachiyo, JP;

Katsumoto Kataoka, Yachiyo, JP;

Assignees:

CITIZEN CHIBA PRECISION CO., LTD., Yachiyo, JP;

CITIZEN WATCH CO., LTD., Tokyo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Edgardo San Martin

Int. Cl.
CPC ...
H02K 1/22 (2006.01); H02K 1/27 (2022.01); H02K 1/28 (2006.01); H02K 7/04 (2006.01); H02K 15/02 (2025.01); H02K 15/021 (2025.01); H02K 15/03 (2025.01); H02K 15/16 (2025.01); H02K 15/165 (2025.01); H02K 21/14 (2006.01);
U.S. Cl.
CPC ...
H02K 7/04 (2013.01); H02K 15/165 (2013.01);
Abstract

A rotorrotatable around a predetermined centerline direction includes: a columnar magnet; and a first rotating shaftwith a first columnar partand a cylinder-shaped first cylindrical partcovering a part of a first outer circumferential surfaceof the magnet, wherein the first outer circumferential surfaceof the magnetand a first inner circumferential surfaceof the first cylindrical partof the first rotating shaftare joined, and a first end surfaceof the magnetand a first end surfaceof the first rotating shaftare not joined.

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Ogata, Kazunari. (2026). Rotor, brushless motor, and method for manufacturing rotor (U.S. Patent No. 12756267). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12756267

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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