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:
Apr. 06, 2010
Filed:
Dec. 27, 2006
Applicants:
Ryohheita Hattori, San Jose, CA (US);
Naoki Kodama, Kanagawa, JP;
Hiroyuki Suzuki, Kanagawa, JP;
Inventors:
Assignee:
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/31 (2006.01);
U.S. Cl.
CPC ...
Abstract
Embodiments of the present invention pertain to a magnetic head that includes negative expansion material. According to one embodiment, the magnetic head includes a read element, a substrate, and at least a partial layer of negative expansion material to control, at least in part, a fly height between an air bearing surface associated with the magnetic head and a disk surface. The material is manganese nitride based and non-insulating and the layer of negative expansion material is parallel to the substrate, according to one embodiment.