The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 2007
Filed:
Dec. 04, 2002
Taras G. Pokhil, Arden Hills, MN (US);
Ned Tabat, Chanhassen, MN (US);
Martin L. Plumer, Bloomington, MN (US);
Steven P. Bozeman, Savage, MN (US);
Nurul Amin, Woodbury, MN (US);
Taras G. Pokhil, Arden Hills, MN (US);
Ned Tabat, Chanhassen, MN (US);
Martin L. Plumer, Bloomington, MN (US);
Steven P. Bozeman, Savage, MN (US);
Nurul Amin, Woodbury, MN (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A magnetic recording head having an air bearing surface for confronting a surface of a rotating disc and comprising a pole tip and a generally rounded and substantially planar body attached to the pole tip is disclosed. The width of the pole tip defines a track width of data written to the rotating disc. The generally rounded shape of the top pole body is such that top pole magnetization gradually changes its direction and follows the edges of the body. Further, the pole tip has low remanence, gradual spin structure and no domain walls formed near the pole tip.