Dynamic magnetic information storage or retrieval – Head – Core
Reexamination Certificate
2008-04-15
2008-04-15
Renner, Craig A. (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Core
C360S119050
Reexamination Certificate
active
10825049
ABSTRACT:
A thin film magnetic head has a magnetic pole major layer terminated at a position receding from a medium-opposed surface. An intermediate magnetic layer extends forward toward the medium-opposed surface from the surface of the magnetic pole major layer. The intermediate magnetic layer is terminated at a position receding from the medium-opposed surface. A tip magnetic layer extends to the medium-opposed surface from the surface of the intermediate magnetic layer so as to expose the front end at the medium-opposed surface. The layered structure serves to diminish variation in the sectional area of the path of the magnetic flux. Saturation of magnetic flux is sufficiently suppressed irrespective of the reduction in the sectional area. Even if the tip magnetic layer is reduced in lateral width, the tip magnetic layer allows a sufficient leakage of magnetic flux from the front end.
REFERENCES:
patent: 6191916 (2001-02-01), Sasaki
patent: 6204997 (2001-03-01), Sasaki
patent: 6483664 (2002-11-01), Kamijima
patent: 6490127 (2002-12-01), Sasaki
patent: 6504677 (2003-01-01), Han et al.
patent: 6724572 (2004-04-01), Stoev et al.
patent: 2002/0024766 (2002-02-01), Sasaki et al.
patent: 2002/0034043 (2002-03-01), Okada et al.
patent: 2002/0036864 (2002-03-01), Sasaki
patent: 2002/0109946 (2002-08-01), Sato et al.
patent: 2003/0021063 (2003-01-01), Kuroda et al.
patent: 2004/0145826 (2004-07-01), Sasaki et al.
patent: 2004/0252415 (2004-12-01), Shukh et al.
patent: 2005/0128639 (2005-06-01), Sasaki et al.
patent: 2005/0185337 (2005-08-01), Sasaki et al.
patent: 2002-92821 (2002-03-01), None
Liu et al.; “Advanced Probe Head for Perpendicular Recording”; IEEE Trans. on Magnetics, vol. 38, No. 4; pp. 1647-1651; Jul. 2002.
Stoev et al.; “High Linear Density Study of Advanced Single-Pole Head”; IEEE Trans. on Magnetics, vol. 38, No. 5; pp. 2243-2248; Sep. 2002.
Maeda Maki
Nishikawa Kiyoshi
Fujitsu Limited
Greer Burns & Crain Ltd
Renner Craig A.
LandOfFree
Single pole magnetic head having intermediate magnetic layer... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Single pole magnetic head having intermediate magnetic layer..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Single pole magnetic head having intermediate magnetic layer... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3922027