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:
Sep. 15, 2020
Filed:
May. 01, 2017
Applicant:
Makita Corporation, Anjo-shi, Aichi, JP;
Inventor:
Kiyoshi Aoyama, Anjo, JP;
Assignee:
MAKITA CORPORATION, Anjo-Shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 3/28 (2006.01); H02K 21/22 (2006.01); H02K 3/12 (2006.01); H02K 7/14 (2006.01);
U.S. Cl.
CPC ...
H02K 3/28 (2013.01); H02K 3/12 (2013.01); H02K 7/145 (2013.01); H02K 21/22 (2013.01);
Abstract
An electric power tool includes a brushless motor as a driving source. The brushless motor includes a stator and a rotor. The stator includes coils wound around in three phases. In a wire winding method of the coil of the stator, when the number of slots per phase is N, the number of series of the coils per phase is A, and the number of parallel of the coils per phase is B, a relation of N=A×B (note that, N is a natural number of 3 or more and 10 or less, A is a natural number of 1 or more, and B is a natural number of 2 or more) is satisfied.