Thin-film magnetic head, head gimbal assembly with thin-film...

Details Thin-film magnetic head, head gimbal assembly with thin-film... Thin-film magnetic head, head gimbal assembly with thin-film...

2007-10-16

2007-10-16

Young, Wayne (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Head accessory

C360S294700, C360S125330, C360S125020, C360S324000

Reexamination Certificate

active

11113973

ABSTRACT:
A thin-film magnetic head includes at least one inductive write head element and at least one read magnetic head element, capable of controlling a spacing between a magnetic recording medium and the at least one magnetic read head element by heating. A gain SG (nm/° C.) of the spacing is greater than a spacing gain threshold SGTHLD(nm/° C.) defined by the following expression:in-line-formulae description="In-line Formulae" end="lead"?SGLIMT=A*dPTP+Bin-line-formulae description="In-line Formulae" end="tail"?A=1.4642E−02*exp(−6.6769E−05*LRDMF)B=4.9602E−01*exp(−2.0423E−03*LRDMF)where dPTP represents an amount of change in protrusion (nm) of a top end of the at least one inductive write head element and/or the at least one read magnetic head element by heating, and LRDMFrepresents a line recording density (kFCI) at a frequency half of the maximum recording frequency.

REFERENCES:
patent: 5991113 (1999-11-01), Meyer et al.
patent: 6963464 (2005-11-01), Xu et al.
patent: 6992865 (2006-01-01), Thurn et al.
patent: 7035046 (2006-04-01), Young et al.
patent: 7064930 (2006-06-01), Serpe et al.
patent: 7092193 (2006-08-01), McKenzie et al.
patent: 7164555 (2007-01-01), Kato et al.
patent: 2002/0097517 (2002-07-01), Bonin et al.
patent: 2003/0099054 (2003-05-01), Kamijima
patent: 2003/0174430 (2003-09-01), Takahashi et al.
patent: 2001-236614 (2001-08-01), None
patent: 2002-280635 (2002-09-01), None
patent: 2002-324306 (2002-11-01), None
Japanese Office Action dated Jun. 6, 2006.

Affiliated with

Also associated with

Rating

Thin-film magnetic head, head gimbal assembly with thin-film... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thin-film magnetic head, head gimbal assembly with thin-film..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thin-film magnetic head, head gimbal assembly with thin-film... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3899298