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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 9692273 B1

PDFFull Text
Date of Patent:
Jun. 27, 2017

Filed:

Jun. 09, 2014

Spindle motor, electronics device and disk drive apparatus

Applicant:

Nidec Corporation, Kyoto, JP;

Inventors:

Yoichi Sekii, Kyoto, JP;

Kazuya Enokizono, Kyoto, JP;

Assignee:

NIDEC CORPORATION, Kyoto, JP;

Attorney:

Keating & Bennett, LLP

Primary Examiner:

Joshua Benitez-Rosario

Assistant Examiner:

Alexander Singh

Int. Cl.
CPC ...
H02K 5/16 (2006.01); H02K 7/08 (2006.01); H02K 5/167 (2006.01); F16C 33/10 (2006.01); F16C 17/10 (2006.01);
U.S. Cl.
CPC ...
H02K 5/165 (2013.01); F16C 17/107 (2013.01); F16C 33/103 (2013.01); H02K 5/1675 (2013.01); H02K 5/1677 (2013.01); H02K 7/08 (2013.01); F16C 2370/12 (2013.01); H02K 2213/03 (2013.01);
Abstract

A rotating portion of a spindle motor includes a rotor magnet, a circular plate portion, and an annular raised portion that projects downward from the circular plate portion. A stationary portion includes a stator, a base portion, and an annular recessed portion configured to accommodate the raised portion. The raised portion includes an inner circumferential surface and an outer circumferential surface. The inner circumferential surface is positioned radially opposite a first side surface of the recessed portion with a first minute gap intervening therebetween. The outer circumferential surface is positioned radially opposite a second side surface of the recessed portion with a second minute gap intervening therebetween. The first minute gap has an axial dimension greater than an axial dimension of a seal portion.

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Sekii, Yoichi. (2017). Spindle motor, electronics device and disk drive apparatus (U.S. Patent No. 9692273). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9692273

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

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