Dynamic magnetic information storage or retrieval – Head – Core
Reexamination Certificate
2007-04-03
2007-04-03
Renner, Craig A. (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Core
C360S128000
Reexamination Certificate
active
10672094
ABSTRACT:
A head structure having a write head portion for writing data to magnetic media. The write head portion includes a first pole piece with a first pole tip, a probe pole piece having a probe pole tip for emitting magnetic flux from an ABS end thereof, an insulation stack positioned between the pole pieces, at least one write coil embedded in the insulation stack, a shaping layer positioned between the probe pole piece and the insulation stack for focusing flux to the probe pole tip, a trailing shield spaced apart from the pole, the trailing shield causing the magnetic flux to enter the media at an angle from a plane perpendicular to a surface of the media facing the pole, and a return pole piece.
REFERENCES:
patent: 4636897 (1987-01-01), Nakamura et al.
patent: 4807076 (1989-02-01), Nakashima et al.
patent: 4839761 (1989-06-01), Gatzen
patent: 4943882 (1990-07-01), Wada et al.
patent: 4951166 (1990-08-01), Schewe
patent: 5075956 (1991-12-01), Das
patent: 5155646 (1992-10-01), Fujisawa et al.
patent: 5452164 (1995-09-01), Cole et al.
patent: 5652687 (1997-07-01), Chen et al.
patent: 5831801 (1998-11-01), Shouji et al.
patent: 5872693 (1999-02-01), Yoda et al.
patent: 6029339 (2000-02-01), Chang et al.
patent: 6055138 (2000-04-01), Shi
patent: 6226149 (2001-05-01), Dill et al.
patent: 6388845 (2002-05-01), Sasaki
patent: 6594112 (2003-07-01), Crue et al.
patent: 6724572 (2004-04-01), Stoev et al.
patent: 2002/0044379 (2002-04-01), Kobayashi et al.
patent: 2002/0057526 (2002-05-01), Sasaki
patent: 2003/0021063 (2003-01-01), Kuroda et al.
patent: 2003/0048581 (2003-03-01), Ohtomo et al.
Hitachi Global Storage Technologies - Netherlands B.V.
Renner Craig A.
Zilka-Kotab, PC
LandOfFree
Perpendicular magnetic recording head with trailing shield... 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 with trailing shield..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Perpendicular magnetic recording head with trailing shield... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3732916