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. 03, 2006
Filed:
Feb. 26, 2003
Shin Nagahiro, Odawata, JP;
Masahiko Sega, Hiratsuka, JP;
Toshihiro Arisaka, Odawara, JP;
Toshihiko Shimizu, Yasato, JP;
Hiromitsu Masuda, Odawara, JP;
Tetsuya Hamaguchi, Tokyo, JP;
Gentaro Nakamura, Odawara, JP;
Takenori Atumi, Ushiku, JP;
Shin Nagahiro, Odawata, JP;
Masahiko Sega, Hiratsuka, JP;
Toshihiro Arisaka, Odawara, JP;
Toshihiko Shimizu, Yasato, JP;
Hiromitsu Masuda, Odawara, JP;
Tetsuya Hamaguchi, Tokyo, JP;
Gentaro Nakamura, Odawara, JP;
Takenori Atumi, Ushiku, JP;
Hitachi Global Storage Technologies Japan, Ltd., Kanagawa, JP;
Abstract
A magnetic disk drive having a high recording density and enabling high speed transfer is achieved by reducing vibration of a carriage arm assembly to reduce a positioning error. The disk drive is configured so that a carriage arm is configured by two arm portions, the arm portions being coupled to each other by a restraint member through a viscoelastic material, the restraint member being supported on a carriage body or an area of the carriage arm in the vicinity of the body by means of adhesion or a viscoelastic material. By providing a high damping effect against various vibration modes in which in-plane bending and out-plane bending of the carriage arm are generated, vibration of the carriage arm assembly is suppressed, so that the positioning error is reduced, thereby the magnetic disk drive having a high recording density can be achieved.