Perpendicular magnetic recording head utilizing tensile...

Details Perpendicular magnetic recording head utilizing tensile... Perpendicular magnetic recording head utilizing tensile...

2005-07-22

2009-08-18

Renner, Craig A. (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Gap spacer

C360S125030, C360S317000

Reexamination Certificate

active

07576950

ABSTRACT:
A thin film magnetic head is constructed so that in the case where a magnetic pole layer has a tensile stress, an insulating layer under the magnetic pole layer has a tensile stress and a gap layer on the magnetic pole layer similarly has a tensile stress. The tensile stress in the magnetic pole layer is maintained by the mechanical influence of the tensile stresses in the insulating layer and the gap layer. Consequently, the magnetic domain structure of the magnetic pole layer is optimized so as to suppress leakage of a magnetic flux remained in the magnetic pole layer to the outside at the non-recording time due to the influence of a magnetoelastic effect immediately after recording. Thus, unintended erasure of information recorded on a recording medium is suppressed.

REFERENCES:
patent: 5436781 (1995-07-01), Matono et al.
patent: 6342311 (2002-01-01), Inturi et al.
patent: A 61-192011 (1986-08-01), None
patent: A 02-252111 (1990-10-01), None
patent: A-04-168615 (1992-06-01), None
patent: 05036026 (1993-02-01), None
patent: A 07-014120 (1995-01-01), None
patent: A 07-307009 (1995-11-01), None
patent: 10334412 (1998-12-01), None
patent: A 2000-150233 (2000-05-01), None
patent: A 2000-235911 (2000-08-01), None
patent: A 2000-331310 (2000-11-01), None
patent: A-2002-170209 (2002-06-01), None
patent: A-2004-185742 (2004-07-01), None
Translation of JP 05-036026 published Feb. 12, 1993 to Uehara titled “Thin Film Magnetic Head”.

Affiliated with

Also associated with

Rating

Perpendicular magnetic recording head utilizing tensile... 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 recording head utilizing tensile..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Perpendicular magnetic recording head utilizing tensile... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4059232