Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2005-03-08
2008-12-02
Cao, Allen T (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
Reexamination Certificate
active
07460342
ABSTRACT:
The inadvertent introduction of stray fields at the media surface by the shields that form part of a magnetic read-write head has been eliminated by using a combination of masking and ion milling to remove small amounts of material close to the shields' outer edges. As a consequence, instead of presenting a sharp edge to the ABS, a shield's lower surface slopes gently away from it.
REFERENCES:
patent: 6198597 (2001-03-01), Tateyama et al.
patent: 6742241 (2004-06-01), Sasaki
patent: 7152305 (2006-12-01), Werner
patent: 7236333 (2007-06-01), Macken
patent: 2002/0126422 (2002-09-01), Westwood
Co-pending U.S. Appl. No. 11/117,672, filed Apr. 28, 2005, assigned to the same assignee.
Co-pending U.S. Appl. No. 11/117,673, filed Apr. 28, 2005, assigned to the same assignee.
Cha Ellis
Guan Lijie
Tang Yaw-Shing
Ackerman Stephen B.
Cao Allen T
Headway Technologies Inc.
Saile Ackerman LLC
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