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:
May. 06, 2003
Filed:
Nov. 09, 2001
Applicant:
Inventors:
Satomitsu Imai, Odawara, JP;
Takashi Kouno, Niihari-gun, JP;
Marutomo Goto, Odawara, JP;
Shigeo Nakamura, Odawara, JP;
Masahiko Sega, Hiratsuka, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 1/702 ;
U.S. Cl.
CPC ...
G11B 1/702 ;
Abstract
Return channels , and are formed to guide air flowing through a clearance between a magnetic disk ( ) and a shroud ( ) so that the air flows behind a voice coil motor, bypasses a loading/unloading mechanism ( ) and flows toward a region on the lower side of the loading/unloading mechanism with respect to the rotating direction of the magnetic disk ( ). Thus, production of turbulent flow in the vicinity of the loading/unloading mechanism is controlled. Fluttering of the magnetic disk ( ) can be controlled by placing a filter in one of the return channels.