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. 14, 2003
Filed:
Mar. 13, 1998
Applicant:
Inventors:
Kiyoshi Masaki, Amagasaki, JP;
Kazuhiro Mihara, Moriguchi, JP;
Shuichi Yoshida, Osaka, JP;
Sachio Fukuyama, Matsuyama, JP;
Noriaki Urayama, Matsuyama, JP;
Masaaki Kikugawa, Matsuyama, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B 3/308 ;
U.S. Cl.
CPC ...
G11B 3/308 ;
Abstract
A balanced disk drive apparatus for suppressing undesirable vibrations caused by the unbalance of a detachable disk during high speed data transfer comprises a balanced disk drive apparatus having a hollow ring member containing a balancing member therein to form a balancer wherein the balancer is rotatable with the detachable disk for suppressing vibrations created by the unbalanced detachable disk during high speed rotation.