Perpendicular magnetic recording head with return pass layer

Details Perpendicular magnetic recording head with return pass layer Perpendicular magnetic recording head with return pass layer

2005-12-06

2010-06-08

Klimowicz, William J (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Core

C360S125210

Reexamination Certificate

active

07733604

ABSTRACT:
A length in a height direction from each end of a front portion of a return-pass layer (first magnetic layer) may be shorter than a length in the height direction from a midpoint of the front portion. As a result, a recording magnetic field may not be concentrated on and may not return to the ends of the front portion, and the intensity of the magnetic field generated from the ends toward the recording medium may be weakened, whereby it may be possible to appropriately suppress the erasing phenomenon of a recorded signal.

REFERENCES:
patent: 5075956 (1991-12-01), Das
patent: 5680283 (1997-10-01), Tanaka et al.
patent: 5854727 (1998-12-01), Tanaka et al.
patent: 6330127 (2001-12-01), Sasaki
patent: 6441995 (2002-08-01), Sasaki
patent: 6452743 (2002-09-01), Sasaki
patent: 6483665 (2002-11-01), Sasaki
patent: 6707642 (2004-03-01), Batra
patent: 6826012 (2004-11-01), Sasaki
patent: 2002/0024765 (2002-02-01), Kutsuzawa et al.
patent: 2004/0004787 (2004-01-01), Matono et al.
patent: 2004/0151036 (2004-08-01), Aoyagi et al.
patent: 2004/0240108 (2004-12-01), Shukh
patent: 2006/0067006 (2006-03-01), Takagishi et al.
patent: 2004-39148 (2004-02-01), None
patent: 2004-127407 (2004-04-01), None
patent: 2006-99891 (2006-04-01), None

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