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:
Jun. 27, 1989
Filed:
Jun. 30, 1988
Applicant:
Inventors:
Hardayal S Gill, Los Altos, CA (US);
Ralph F Simmons, Jr, Boise, ID (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360113 ;
Abstract
An improved shield for field sensing transducers used in magnetic storage devices is presented. The inventive shield provides a planar surface for the transducer to rest on, a single magnetic domain in the vicinity of the transducer, low magnetic reluctance for fields from the recording media, and stability against external magnetic fields, that is, high reluctance for external magnetic fields.