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:
Mar. 24, 1998
Filed:
Nov. 12, 1996
Hisashi Kaneko, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A spindle assembly for a disk drive uses fewer than the maximum number of disks, reducing power consumption of a spindle motor without reducing the dust collecting ability of an air filter. The spindle assembly includes a shaft adapted to be fixed to a housing of the disk drive, and a spindle hub rotatably mounted on the shaft. A first set of disks spaced from each other a given distance is mounted on a lower portion of the spindle hub, and a second set of disks spaced from each other the above given distance is mounted on an upper portion of the spindle hub. A dummy ring is mounted on an intermediate portion of the spindle hub to define a large space between the first set and the second set. The intermediate portion does not have disks. A clamp is secured to the spindle hub by screws, thereby fixing the first and second sets of disks to the spindle hub.