Thin film magnetic head having spiral coils and...

Details Thin film magnetic head having spiral coils and... Thin film magnetic head having spiral coils and...

2006-08-01

2006-08-01

Heinz, A. J. (Department: 2653)

Dynamic magnetic information storage or retrieval

Head

Coil

C360S125330

Reexamination Certificate

active

07085099

ABSTRACT:
The invention is directed to improvement of a write element of a thin film magnetic head. In the write element, a lower coil surrounds in a spiral form a back gap portion, arranged within a height of a lower pole. An upper coil is disposed above the lower coil, surrounding in a spiral form the back gap portion and arranged within a height of an upper pole. A gap film is at an intermediate level in the pole length that is defined by the height of the lower pole and the height of the upper pole.

REFERENCES:
patent: 5796564 (1998-08-01), Shouji et al.
patent: 6043959 (2000-03-01), Crue et al.
patent: 6191916 (2001-02-01), Sasaki
patent: 6204997 (2001-03-01), Sasaki
patent: 6259583 (2001-07-01), Fontana, Jr. et al.
patent: 6541065 (2003-04-01), Sasaki et al.
patent: 6751052 (2004-06-01), Tagawa et al.
patent: 6762911 (2004-07-01), Sasaki et al.
patent: 2005/0157423 (2005-07-01), Sasaki et al.
U.S. Appl. No. 10/682,732, filed Oct. 10, 2003, Sasaki et al.
U.S. Appl. No. 10/687,634, filed Oct. 20, 2003, Sasaki et al.
U.S. Appl. No. 10/782,930, filed Feb. 23, 2004, Sasaki et al.
U.S. Appl. No. 10/759,005, filed Jan. 20, 2004, Sasaki et al.
U.S. Appl. No. 10/067,911, filed Feb. 8, 2002, Sasaki et al.
U.S. Appl. No. 10/673,172, filed Sep. 30, 2003, Sasaki et al.
U.S. Appl. No. 11/134,447, filed May 23, 2005, Sasaki et al.
U.S. Appl. No. 11/109,671, filed Apr. 20, 2005, Sasaki et al.

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