Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2006-05-23
2006-05-23
Miller, Brian E. (Department: 2652)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
C360S320000
Reexamination Certificate
active
07050272
ABSTRACT:
A single-element magnetoresistive (MR) read head with reduced susceptibility to noise is disclosed. In particular, the present invention addresses the problem of noise generated thermally through contact with the recording medium. The present invention solves this problem by keeping the temperature of the read head at a level that minimizes the noise level. According to a preferred embodiment of the present invention, the shielding material used in the read head is recessed with respect to the magnetic-medium-bearing surface. In an alternative embodiment of the present invention, a thin coating of metal on the read head surface is applied. In yet another embodiment, the read element is operated with a low bias current so as to minimize the thermal effect of power consumption due to electrical resistance. In still another embodiment, the read element makes use of insulating material that is both an electrical insulator and a high quality thermal insulator.
REFERENCES:
patent: 5644455 (1997-07-01), Schultz
patent: 5809636 (1998-09-01), Shouji et al.
patent: 5966273 (1999-10-01), Matsumoto et al.
patent: 6097578 (2000-08-01), Pokhil
patent: 6147828 (2000-11-01), Bloodworth et al.
patent: 6188549 (2001-02-01), Wiitala
patent: 6197439 (2001-03-01), Parkin et al.
patent: 6252749 (2001-06-01), Hayakawa
patent: 6271998 (2001-08-01), Coehoorn et al.
patent: 6279827 (2001-08-01), Yeckley
patent: 6396670 (2002-05-01), Murdock
patent: 6404603 (2002-06-01), Inoue et al.
patent: 6751055 (2004-06-01), Alfoqaha et al.
patent: 6765768 (2004-07-01), Saito
patent: 2002/0064005 (2002-05-01), Arasawa et al.
patent: 2002/0135947 (2002-09-01), Aoki et al.
patent: 2003/0035251 (2003-02-01), Asida et al.
patent: 2003/0231437 (2003-12-01), Childress et al.
Arnold Carl Stephen
Chaug Yi Shung
McKinstry Kevin Dale
Miller Brian E.
Storage Technology Corporation
Yee & Associates P.C.
LandOfFree
Reduction of contact noise in single-ended magnetoresistive... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reduction of contact noise in single-ended magnetoresistive..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reduction of contact noise in single-ended magnetoresistive... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3536163