Method to reduce sensitivity of a magnetic read-write head...

Details Method to reduce sensitivity of a magnetic read-write head... Method to reduce sensitivity of a magnetic read-write head...

2010-11-03

2011-11-15

Negron, Daniell L (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

C360S320000

Reexamination Certificate

active

08059371

ABSTRACT:
In a read-write head, the shields can serve as magnetic flux conductors for external fields, so that they direct a certain amount of flux into the recording medium. This problem has been overcome by the addition to the shields of a pair of tabs located at the edges closest to the ABS. These tabs serve to prevent flux concentrating at the edges so that horizontal fields at these edges are significantly reduced. The tabs need to have aspect ratios of at least 2 and may be either triangular or rectangular in shape. Alternatively, the tabs may be omitted and, instead, outer portions of the shield's lower edge may be shaped so as to slope upwards away from the ABS.

REFERENCES:
patent: 5075280 (1991-12-01), Pisharody et al.
patent: 6757141 (2004-06-01), Santini et al.
patent: 6775099 (2004-08-01), Kuroda et al.
patent: 6785097 (2004-08-01), Okada et al.
patent: 7099121 (2006-08-01), Parker et al.
patent: 7599152 (2009-10-01), Guan et al.
patent: 2001/0017753 (2001-08-01), Mori et al.
patent: 2006/0092569 (2006-05-01), Che et al.

Affiliated with

Also associated with

Rating

Method to reduce sensitivity of a magnetic read-write head... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method to reduce sensitivity of a magnetic read-write head..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method to reduce sensitivity of a magnetic read-write head... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4267206