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:
Jan. 02, 2007
Filed:
Aug. 28, 2003
Ta-chang Fu, San Jose, CA (US);
Robert A. Lenicheck, Palo Alto, CA (US);
Sattar Malek, San Jose, CA (US);
Kim Ungtae, San Jose, CA (US);
Stanley Yen Wong, San Jose, CA (US);
Ta-Chang Fu, San Jose, CA (US);
Robert A. Lenicheck, Palo Alto, CA (US);
Sattar Malek, San Jose, CA (US);
Kim Ungtae, San Jose, CA (US);
Stanley Yen Wong, San Jose, CA (US);
Hitachi Global Storage Technologies Netherlands BV, Amsterdam, NL;
Abstract
A method for centering and securing data storage disks to the hub of a spindle motor in a hard disk drive has a chamfer and a countersink on the top of the spindle motor shaft center. During the hard disk drive assembly process, a disk centering tool engages and uses these features to locate and center the disks that are installed on the spindle motor. The features are closely toleranced to provide a very precise centering feature for mounting and aligning the media disks with respect to the hub and the spindle motor. The present design reduces the complexity of the tooling and fixtures required to complete the assembly. As a result, the overall part cost is reduced and the manufacturing yield is improved.