Dynamic magnetic information storage or retrieval – Head – Core
Reexamination Certificate
2005-06-07
2005-06-07
Miller, Brian E. (Department: 2652)
Dynamic magnetic information storage or retrieval
Head
Core
Reexamination Certificate
active
06903900
ABSTRACT:
A perpendicular magnetic recording head includes: an auxiliary pole layer; a main pole layer; a coil layer for providing a recording magnetic field to the auxiliary pole layer and the main pole layer; a nonmagnetic layer; and a connection layer magnetically coupled to the main pole layer. The nonmagnetic layer is formed on the main pole layer to maintain the main pole layer at a predetermined height during manufacture, allowing independent control of the track width Tw and the height of the main pole layer. A method for manufacturing the perpendicular magnetic recording head is also provided.
REFERENCES:
patent: 4438471 (1984-03-01), Oshiki et al.
patent: 4546398 (1985-10-01), Toda et al.
patent: 4636897 (1987-01-01), Nakamura et al.
patent: 4873599 (1989-10-01), Sueoka
patent: 4899434 (1990-02-01), Roberts
patent: 4974110 (1990-11-01), Kanamine et al.
patent: 5027246 (1991-06-01), Numazawa et al.
patent: 5075280 (1991-12-01), Pisharody et al.
patent: 5408373 (1995-04-01), Bajorek et al.
patent: 5649351 (1997-07-01), Cole et al.
patent: 6226149 (2001-05-01), Dill et al.
patent: 6513228 (2003-02-01), Khizroev et al.
patent: 6687084 (2004-02-01), Takahashi et al.
patent: 6697221 (2004-02-01), Sato et al.
patent: 2002/0006013 (2002-01-01), Sato et al.
patent: 63-195815 (1988-08-01), None
patent: 07-262519 (1995-10-01), None
patent: 8-106613 (1996-04-01), None
patent: 08-106613 (1996-04-01), None
patent: 10-320720 (1998-12-01), None
patent: 2000-099916 (2000-04-01), None
patent: 2000-394723 (2004-05-01), None
Kobayashi Kiyoshi
Sato Kiyoshi
Yazawa Hisayuki
Alps Electric Co. ,Ltd.
Brinks Hofer Gilson & Lione
Miller Brian E.
LandOfFree
Perpendicular magnetic recording head including nonmagnetic... 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 including nonmagnetic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Perpendicular magnetic recording head including nonmagnetic... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3519848