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:
Sep. 21, 2010
Filed:
Feb. 18, 2005
Matthew P. Dugas, St. Paul, MN (US);
Gregory L. Wagner, Arden Hills, MN (US);
Marlow L. Roberts, Champlin, MN (US);
Matthew P. Dugas, St. Paul, MN (US);
Gregory L. Wagner, Arden Hills, MN (US);
Marlow L. Roberts, Champlin, MN (US);
Advanced Research Corporation, White Bear Lake, MN (US);
Abstract
A magnetic head and method for making same which can be used for formatting or writing servo tracks or data on a tape. In one example, the magnetic head may include a magnetic thin film layer; at least one gap defined in the magnetic thin film layer; and at least one secondary sub-gap structure within the magnetic thin film layer, the at least one gap positioned proximate the at least one secondary sub-gap structure. Through the use of the secondary sub-gap structure, the gap (i.e. a record gap or channel) can be made thinner than in conventional heads.