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:
Aug. 14, 2001
Filed:
Apr. 01, 1999
Yukihiro Kobayashi, Chiba, JP;
Toshiaki Watanabe, Chiba, JP;
Sony Corporation, Tokyo, JP;
Abstract
A spindle motor comprising: a stator portion which includes a stator board which is fixedly disposed, a plain bearing which is secured onto the stator board, and a wound coil disposed around the plain bearing; a rotor portion which includes a rotating shaft which is rotatably supported by the plain bearing, a rotor yoke which is integrally fixed to the rotating shaft, and a rotor magnet provided to the rotor yoke; and a plate which is provided on at least one end face of the plain bearing and adapted to prevent leakage of lubricating oil to the outside due to rotation of the rotor portion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile