公开(公告)号：JPH10302421A

公开(公告)日：1998-11-13

申请号：JP11060097

申请日：1997-04-28

Applicant: IBM

Inventor： AOYANAGI AKIHIKO ,  INOUE HIROO ,  KOYANAGI ICHIRO ,  NAKAMURA TAKASHI ,  AOKI TATSUJI ,  THOMAS R ALBRECHT

IPC: G11B21/22 ,  G11B21/12

Abstract: PROBLEM TO BE SOLVED: To facilitate the controlling of a head arm by reducing shavings of ramps in a head holding mechanism to reduce changes of friction factors of the ramps and to make the speed of the head arm at the time of loading and unloading of a head constant. SOLUTION: In ramps 62 of a ramp block 6, the dried lubrication coating film consisting essentially of polytetrafluorethylene is formed on a surface areas 62g including a contact part 62f with a suspension assembly constituting a head arm. Moreover, the film is also formed on a contact part with the ramps 62 in the tab of the suspension assembly. However, the contact part of the tab slides on the contact part 62f of the ramps at the time of loading and unloading of the head, since the resin coating film is formed on the contact part between the ramps 62 and the tab, the shavings of ramps 62 are reduced.

公开(公告)号：JP2001035113A

公开(公告)日：2001-02-09

申请号：JP18638199

申请日：1999-06-30

Applicant: IBM

Inventor： MATSUMOTO TAKESHI ,  NAKAMURA TAKASHI ,  TOBARI ATSUSHI ,  AOKI TATSUJI ,  DORIASU K RII

IPC: G11B5/60 ,  G11B21/21 ,  G11B25/04 ,  G11B33/14

Abstract: PROBLEM TO BE SOLVED: To provide the structure of a slider hardly sticking or attracting dust or the like on the face opposite to a disk, in the slider that floats above the rotating disk. SOLUTION: A recessed part 290 capable of generating a negative pressure is constituted at least in a part of the area surrounded with a left side-rail 240, left air bearing face 220, cross rail 210, right air bearing face and right side-rail 250; the extent of a projection of the left side-rail 240 or the right side-rail 250 is larger than that of the recessed part 290 but is smaller than that of the left air bearing face 220 or the right air bearing face. In addition, dirt or the like is also hardly stuck or attracted to the face zoo opposite to the disk since the structure in which either one of the end edge 249 of the left side-rail 240 or that 259 of the right side-rail 250 terminates essentially in front of the air exit edge 204 of the face 200.

公开(公告)号：JPH087203A

公开(公告)日：1996-01-12

申请号：JP13983794

申请日：1994-06-22

Applicant: IBM

Inventor： SONOBE YOSHIAKI ,  UCHIDA HIROSHI ,  TOYOOKA TAKASHI ,  MATSUI TAKAO ,  AOKI TATSUJI ,  IIHARA YASUHIRO ,  TSUCHIMOTO KAZUNARI ,  OZAWA YUTAKA

IPC: G11B5/39 ,  G11B5/02

Abstract: PURPOSE: To enhance easily the stability of a magnetic domain of a MR head without carrying out complicated works such as disassembling and assembling etc. and reproduce data. CONSTITUTION: A drive device 28 is driven corresponding to a signal output from a controller body 40 of a HDC 30, and it records and reproduces data in a location where an access arm is pivoted at a specific angle. When data for this disk are recorded and reproduced, a bias current supplied to a reproduction element 21A of a magnetic head 20A having a MR effect is turned on/off only for a specific period by a reproduction control circuit 32A. Accordingly, as a direction of a magnetizing vector is changed within a specific period, a magnetic domain of the reproduction element 21A (MR element) is not unstable, but stabilized so that data from the disk can be reproduced stably.