Thin film magnetic transducer having a separate magnetically conductive layer
January 29, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3639699 Multi-tracks magnetic head with single turn winding structure Multi-track thin film magnetic head Magnetic head and process for making laminated magnetic head Thin film inductive transducer Thin film magnetic head assembly Thin film magnetic head Thin film inductive transducer Patent #: 4295173 InventorsAssigneeApplicationNo. 07/009588 filed on 01/29/1987US Classes:360/126, Laminated360/122Head surface structureExaminersPrimary: Wolff, John H.Assistant: Severin, David J. Attorney, Agent or FirmInternational ClassG11B 5/31 (20060101)AbstractA thin film transducer having a substrate, a first and second pole piece formed of a selected magnetic material and terminating in a gap, a coil positioned between the first and second pole pieces and a magnetically conductive layer formed of a material having selected chemical, magnetic and physical properties and having a known magnetic saturation flux density and being positioned contiguous at least one of the first pole piece and second pole piece and rearward of the edges forming the gap to conduct magnetic flux in parallel to the pole pieces and to increase and concentrate the magnetic flux density at the edges of the first and second pole piece defining the gap is shown.Other References
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