Sony Corporation

Imation Corporation

Adam A Brodd

Bruce H Edwards

David C Lowery

C Thomas Jennings

David J Owen

Brian D Brong

Tryg R Jensen

Composite magnetic recording media are described. A composite structure is a structure that is formed of multiple components. For example, a composite magnetic recording medium may include a substrate, an underlayer formed over the substrate, the underlayer defining a coating surface, and a magnetic layer formed over the coating surface of the underlayer. Composite magnetic recording media constructed according to the materials and techniques disclosed may provide dimensional flexibility while exhibiting improved physical or electromagnetic characteristics. In some examples, dimensional flexibility may be achieved by pairing a substrate greater than or equal to approximately 4000 nanometers thick with an underlayer less than or equal to approximately 890 nanometers thick.

Composite magnetic recording media

A magnetic recording tape includes an elongated substrate and a magnetic side. The magnetic side includes a support layer formed over the substrate and a magnetic recording layer formed over the support layer to define a magnetic recording surface opposite the substrate. The magnetic recording layer includes magnetic particles and a lubricant and supports a net uncompressed density of at least 30 MB/in. The magnetic side has an extracted BET surface area of greater than 1.0 m/g.

Magnetic recording medium having improved durability for high density applications

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Minneapolis, MN, United States of America

Adam A Brodd