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. 04, 1997
Filed:
Jun. 05, 1995
Applicant:
Inventors:
Yoshifumi Mizoshita, Kawasaki, JP;
Tomoyoshi Yamada, Kawasaki, JP;
Yasumasa Kuroba, Kawasaki, JP;
Toru Kouhei, Kawasaki, JP;
Takao Sugawara, Kawasaki, JP;
Masaru Matsumoto, Kawasaki, JP;
Hiroyuki Mase, Kawasaki, JP;
Masao Tsunekewa, Kawasaki, JP;
Shinji Koganezawa, Kawasaki, JP;
Keiji Aruga, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kanagawa, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360105 ; 360 9701 ;
Abstract
A retracting assembly produces a constant torque, in a data zone of a magnetic disk, which is greater than static friction of a bearing for a rotary actuator. However, in a parking zone on an outer portion of the magnetic disk, the retracting assembly generates a torque which suddenly increases so that a large holding torque is obtained and a magnetic head is reliably locked.