Dynamic magnetic information storage or retrieval – Head – Core
Reexamination Certificate
2007-05-03
2010-12-07
Davis, David D (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Core
Reexamination Certificate
active
07848054
ABSTRACT:
A perpendicular magnetic write head having a conformal wrap around trailing shield. The write head includes a write pole that can be configured with a trapezoidal shape as viewed from the Air Bearing Surface (ABS) and which includes a wrap around trailing magnetic shield. The magnetic shield has a trailing portion that is separated from the leading edge of the write pole by a non-magnetic trailing gap, and has side shield portions that are separated from first and second side portions of the write pole by first and second non-magnetic side gaps. The magnetic shield can be configured with notches at either side of the trailing portion of magnetic shield. These notches can extend in the trailing direction by a distance that is preferably ¼ to 1 times the trailing gap thickness. The width of the straight, trailing portion of the shield is preferable ½ to 1 times of the main pole width.
REFERENCES:
patent: 6950277 (2005-09-01), Nguy et al.
patent: 7227720 (2007-06-01), Sasaki et al.
patent: 7443633 (2008-10-01), Tagami et al.
patent: 7552523 (2009-06-01), He et al.
patent: 7649712 (2010-01-01), Le et al.
patent: 7663839 (2010-02-01), Sasaki et al.
patent: 2003/0039064 (2003-02-01), Khizroev et al.
patent: 2005/0024779 (2005-02-01), Le et al.
patent: 2005/0243463 (2005-11-01), Fontana, Jr. et al.
patent: 2005/0280935 (2005-12-01), Clinton et al.
patent: 2006/0044681 (2006-03-01), Le et al.
patent: 2006/0044682 (2006-03-01), Le et al.
patent: 2006/0103982 (2006-05-01), Nakamoto et al.
patent: 2006/0139802 (2006-06-01), Sasaki et al.
patent: 2006/0174474 (2006-08-01), Le
patent: 2006/0203381 (2006-09-01), Okada et al.
patent: 2006/0256472 (2006-11-01), Hirabayashi et al.
patent: 2007/0258167 (2007-11-01), Allen et al.
Hsiao Wen-Chien (David)
Hsu Yimin
Nikitin Vladimir
Pentek Aron
Zheng Yi
Davis David D
Hitachi Global Storage Technologies - Netherlands B.V.
Zilka-Kotab, PC
LandOfFree
Perpendicular magnetic write head having a corner notched... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Perpendicular magnetic write head having a corner notched..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Perpendicular magnetic write head having a corner notched... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4220925