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:
Mar. 30, 2010
Filed:
Mar. 17, 2003
Vladyslav A. Vas'ko, Apple Valley, MN (US);
Frank E. Stageberg, Edina, MN (US);
Feng Wang, Lakeville, MN (US);
Vee S. Kong, Richfield, MN (US);
Daniel J. Dummer, St. Anthony, MN (US);
Martin L. Plumer, Bloomington, MN (US);
Vladyslav A. Vas'Ko, Apple Valley, MN (US);
Frank E. Stageberg, Edina, MN (US);
Feng Wang, Lakeville, MN (US);
Vee S. Kong, Richfield, MN (US);
Daniel J. Dummer, St. Anthony, MN (US);
Martin L. Plumer, Bloomington, MN (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A magnetic recording head with an overall planar design and tight dimensional control of throat height and notch width is achieved below the gap. Writer poles include very high magnetic moment material on both sides of the writer gap. Additionally the pole tips are shaped to provide high field with good spatial gradient for optimal writing conditions, thereby extending the capability of longitudinal recording heads for high density and high frequency applications.