Dynamic magnetic information storage or retrieval – Head – Core
Reexamination Certificate
2007-02-15
2010-12-07
Cao, Allen T (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Core
Reexamination Certificate
active
07848053
ABSTRACT:
Embodiments in accordance with the present invention provide a magnetic head in which broadening of the effective track width can be decreased without reducing the write-field intensity and a variation of the track width can be decreased. A main pole consists of a pole tip having a part which provides the write track-width and a yoke part recessed from the air beating surface in the element height direction, and the pole tip consists of a pole tip at the trailing side where the width in the track-width direction is large and a pole tip at the leading side where the width in the track width direction is small. Moreover, the throat height of the pole tip at the trailing side is made greater than the throat height of the pole tip at the leading side.
REFERENCES:
patent: 6108167 (2000-08-01), Tateyama et al.
patent: 6198597 (2001-03-01), Tateyama et al.
patent: 6304415 (2001-10-01), Tateyama et al.
patent: 6809899 (2004-10-01), Chen et al.
patent: 6813116 (2004-11-01), Nakamura et al.
patent: 6857181 (2005-02-01), Lo et al.
patent: 6891697 (2005-05-01), Nakamura et al.
patent: 6952325 (2005-10-01), Sato et al.
patent: 7535675 (2009-05-01), Kimura et al.
patent: 7710685 (2010-05-01), Kimura et al.
patent: 2002/0176214 (2002-11-01), Shukh et al.
patent: 2003/0076627 (2003-04-01), Minor et al.
patent: 2003/0076629 (2003-04-01), Minor
patent: 2003/0151850 (2003-08-01), Nakamura et al.
patent: 2004/0027729 (2004-02-01), Lo et al.
patent: 2005/0057853 (2005-03-01), Nakamura et al.
patent: 2005/0105215 (2005-05-01), Matono
patent: 2006/0002018 (2006-01-01), Fukui et al.
patent: 2006/0221497 (2006-10-01), Okada et al.
patent: 2007/0195454 (2007-08-01), Kimura et al.
patent: 2003-242608 (2003-08-01), None
patent: 2005-93029 (2005-04-01), None
Etoh Kimitoshi
Fukui Hiroshi
Maruyama Yoji
Mochizuki Masafumi
Cao Allen T
Hitachi Global Storage Technologies - Netherlands B.V.
Zilka-Kotab, PC
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