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:
Feb. 22, 2011
Filed:
Apr. 19, 2007
Byron Hassberg Lengsfield, Iii, Gilroy, CA (US);
James Terrence Olson, Santa Cruz, CA (US);
Thomas Dudley Boone, Jr., San Jose, CA (US);
Petrus Antonius Van Der Heijden, San Jose, CA (US);
Byron Hassberg Lengsfield, III, Gilroy, CA (US);
James Terrence Olson, Santa Cruz, CA (US);
Thomas Dudley Boone, Jr., San Jose, CA (US);
Petrus Antonius Van Der Heijden, San Jose, CA (US);
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
A magnetic write head having independent trailing and side magnetic shields. The side shields and trailing shields are independently of one another so that they can have throat heights that are different from one another. This advantageously allows the magnetic potential between the write pole and side shields to be controlled independently of one another without relying on the side gap and trailing gap thicknesses. Furthermore, magnetic performance of the write head can be improved because the side shields can be constructed with varying tapered throat heights, while the throat height of the trailing shield can remain constant.