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:
May. 03, 2022
Filed:
Aug. 27, 2018
Applicant:
Minebea Mitsumi Inc., Nagano, JP;
Inventor:
Jun Ohmura, Hamamatsu, JP;
Assignee:
MINEBEA MITSUMI Inc., Nagano, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/30 (2006.01); B23P 19/02 (2006.01); H02K 1/2733 (2022.01); H02K 7/04 (2006.01); H02K 15/03 (2006.01); H02K 15/16 (2006.01);
U.S. Cl.
CPC ...
H02K 1/30 (2013.01); B23P 19/02 (2013.01); H02K 1/2733 (2013.01); H02K 7/04 (2013.01); H02K 15/03 (2013.01); H02K 15/165 (2013.01);
Abstract
A rotor according to an embodiment includes a cylindrical magnet, a holder, and a balance adjusting portion. The cylindrical magnet has a bore portion into which a rotary shaft is inserted, the inner diameter of the bore portion being larger than the outer diameter of the rotary shaft. The holder is made of resin, and has a tubular portion formed in the bore portion of the magnet and a protruding portion protruding from the magnet in the rotation axis direction, the holder being press-fitted onto the rotary shaft. The balance adjusting portion is press-fitted onto the rotary shaft with the protruding portion interposed therebetween.