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 8922944 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 30, 2014

Filed:

Jan. 24, 2013
Applicant:

Alphana Technology Co., Ltd., Shizuoka, JP;

Inventors:

Mitsuo Kodama, Shizuoka, JP;

Daiki Hayashi, Shizuoka, JP;

Takanori Watanabe, Shizuoka, JP;

Takuji Yamada, Shizuoka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 19/20 (2006.01);
U.S. Cl.
CPC ...
G11B 19/2009 (2013.01);
Abstract

A rotating device includes: a hub that is rotatably supported by a base, on which a recording disk is to be mounted; a stator core fixed to the base, the core having a ring portion and multiple salient poles that radially extend from the ring portion; and a magnet fixed to the hub, the magnet having multiple magnetic poles arranged along its circumference on its side surface on the salient pole side. The magnet is arranged such that its side surface on the salient pole side faces a side surface of each salient pole and a side surface of a portion of the hub that faces the stator core along a rotational axis direction.


Find Patent Forward Citations

Kodama, Mitsuo. (2014). Rotating device (U.S. Patent No. 8922944). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8922944

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

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