公开(公告)号：SG97221A1

公开(公告)日：2003-07-18

申请号：SG200106964

申请日：2001-11-12

Applicant: IBM

Inventor： MUTSURO OHTA ,  KOHICHI TAKEUCHI ,  KEISHI TAKAHASHI ,  FU-YING HUANG

IPC: G11B21/02 ,  G11B5/55

Abstract: A disk drive head assembly enables adjustment of a center of gravity of the head assembly of a depopulation version, while suppressing an occurrence of a resonance frequency affecting the performance of the disk drive apparatus. The head assembly for the data storage media includes: magnetic heads for reading/writing data from/to the data storage media, arms to which the magnetic heads are attached, a pivot shaft holder for supporting the arms, a coil for a voice coil motor extended from the pivot shaft holder, and a counter weight provided at a predetermined position opposite to a coil for the voice coil motor with respect to the pivot shaft holder.

公开(公告)号：SG98041A1

公开(公告)日：2003-08-20

申请号：SG200106865

申请日：2001-11-07

Applicant: IBM

Inventor： YOSHIHIRO HIRASAKA ,  ICHIROH KOYANAGI ,  KOHICHI TAKEUCHI

IPC: G11B25/04 ,  G11B21/02 ,  G11B33/14

Abstract: A disk drive apparatus is constructed with a filter attached to an enclosure through a through hole formed in the enclosure. A special positioning operation is eliminated by inserting the filter into the through hole because a portion of the filter is exposed to the outside through the enclosure. The disk drive apparatus can be constructed so that the filter is supported on the enclosure. In this case, the enclosure has a chamfered portion around the circumference of the through hole; the filter has a flange corresponding to the chamfered portion; and the flange is brought into contact with the chamfered portion. The filter can be fixed to the enclosure by sticking adhesive tape on a circumference of the flange and a circumference of the chamfered portion of the enclosure. Adhesive residue is eliminated because the fixation of the filter is performed with single-coated tape.