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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 12597817 B1

PDFFull Text
Date of Patent:
Apr. 07, 2026

Filed:

Apr. 22, 2024

Rotor and method for manufacturing rotor

Applicant:

Toyota Boshoku Kabushiki Kaisha, Aichi-ken, JP;

Inventors:

Makoto Kitahara, Toyota, JP;

Masaki Sugiyama, Okazaki, JP;

Assignee:

TOYOTA BOSHOKU KABUSHIKI KAISHA, Aichi-Ken, JP;

Attorney:

Greenblum & Bernstein, P.L.C.

Primary Examiner:

Maged M Almawri

Int. Cl.
CPC ...
H02K 1/28 (2006.01); B29C 45/00 (2006.01); B29C 45/14 (2006.01); H02K 1/274 (2022.01); H02K 15/03 (2006.01); H02K 15/12 (2006.01); B29K 105/00 (2006.01); B29K 105/16 (2006.01); B29K 105/20 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
H02K 1/28 (2013.01); B29C 45/0025 (2013.01); B29C 45/14311 (2013.01); B29C 45/14467 (2013.01); B29C 45/14639 (2013.01); H02K 1/274 (2013.01); H02K 15/03 (2013.01); H02K 15/12 (2013.01); B29C 2045/0027 (2013.01); B29C 2045/14327 (2013.01); B29K 2105/0079 (2013.01); B29K 2105/16 (2013.01); B29K 2105/203 (2013.01); B29L 2031/7498 (2013.01);
Abstract

A rotor includes a rotor core including multiple housing holes, multiple magnets accommodated in the housing holes, and multiple plastic portions. Each plastic portion is formed by plastic that fills corresponding one of the housing holes and fixes the corresponding magnet to the rotor core. Each plastic portion includes an end face exposed from an opening of the corresponding housing hole. A gate mark is formed in the end face. A quotient obtained by dividing an area of the end face of each plastic portion by an area of the gate mark is in a range of 24 to 150.

Find Patent Forward Citations

Kitahara, Makoto. (2026). Rotor and method for manufacturing rotor (U.S. Patent No. 12597817). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12597817

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

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