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:
Feb. 10, 2004
Filed:
Sep. 19, 2001
Applicant:
Inventors:
Yoshihiro Hirasaka, Sagamihara, JP;
Kohji Serizawa, Yokohama, JP;
Shinichi Matsuzaki, Fujisawa, JP;
Kohji Takahashi, Yamato, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 3/308 ;
U.S. Cl.
CPC ...
G11B 3/308 ;
Abstract
A disk drive damper avoids matching a frequency band of a sound frequency peak generated by the rotation of a spindle motor and a resonant frequency of the damper. The damper is attached to a disk drive apparatus and enabled to repress vibration. The damper includes a flat base portion and wall-thickness portions that are thicker than the flat base portion. The damper is varied in shape more freely than conventional flat dampers. Consequently, the resonant frequency of the damper can be adjusted more freely than ever.