Paul Richard Albert

US Patent:

42198534, Aug 26, 1980

Filed:

Dec 21, 1978

Appl. No.:

5/972101

Inventors:

Paul A. Albert - San Jose CA
Thomas N. Kennedy - San Jose CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 512
G11B 522
G11B 542
G11B 560

US Classification:

360103

Abstract:

A method of making a thin film inductive head assembly, which has separate read and write transducers, comprises the steps of depositing the elemental layers of one thin film transducer on a substrate; sputter depositing on the transducer a thick transparent insulating layer; flat lapping the thick insulating layer; depositing the elemental layers of a second thin film transducer on the flat lapped insulating layer; and depositing a thick insulating overcoat on the second thin film transducer. The substrate is then configured as a slider element for flying in transducing relation over a record medium, such as a rotary magnetic disk. The resultant structure includes thin film read and write transducers with a thick transparent insulating layer therebetween, all deposited successively in layers on one surface of the substrate, and having a protective insulating overcoat.

US Patent:

42712327, Jun 2, 1981

Filed:

Aug 28, 1978

Appl. No.:

5/937686

Inventors:

Neil D. Heiman - Morgan Hill CA
Robert L. White - Los Altos Hills CA
Robert I. Potter - San Jose CA
Paul A. Albert - San Jose CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H01F 1007

US Classification:

428332

Abstract:

A magnetic material of amorphous iron-nitride and a method for preparing the same are provided.