Larold L Olson

7018730, Mar 28, 2006

Dec 8, 2003

10/730164

Steven L. Lindblom - Inver Grove Heights MN, US
C. Thomas Jennings - Woodbury MN, US
Larold L. Olson - Lindstrom MN, US

Imation Corp. - Oakdale MN

G11B 5/735

4288455

Data storage tape includes a substrate having a first side and a second side opposite the first side, a recording layer disposed on the first side of the substrate, and a coating disposed on the second side of the substrate. A surface of the coating has a pattern formed therein such that the pattern communicates with at least one of a first edge and a second edge of the data storage tape.

7595950, Sep 29, 2009

Mar 27, 2006

11/391574

Larold L. Olson - Lindstrom MN, US
Brian D. Findlay - Woodbury MN, US
C. Thomas Jennings - Woodbury MN, US
Douglas W. Johnson - Stillwater MN, US
Denis J. Langlois - River Falls WI, US
Richard W. Molstad - St. Paul MN, US

Imation Corp. - Oakdale MN

G11B 5/09

360 48, 360 721

In an embodiment, a data storage tape includes a first side including recorded data and a second side including recorded error correcting code data for the recorded data on the first side. In another embodiment, a data storage tape comprises a first side including recorded data and a second side including a copy of the recorded data. Embodiments of the invention may distribute related data across both sides of a data storage tape and as a result may reduce the probability that a location-dependent error in the data storage tape will result in irretrievable data loss. Embodiments of the invention may be particularly useful for systems that can simultaneously retrieve or record data on both sides of a dual-sided data storage tape.

7816023, Oct 19, 2010

Dec 21, 2007

12/004644

Tryg R. Jensen - St. Paul MN, US
C. Thomas Jennings - Woodbury MN, US
Larold L. Olson - Lindstrom MN, US

Imation Corp. - Oakdale MN

G11B 5/66

428842

A magnetic recording tape includes an elongated substrate and a magnetic film coated over the elongated substrate, where the magnetic film includes a first magnetic recording layer. The first magnetic recording layer includes particles having a diameter that is between a factor from about 2 to 5 greater than a thickness of the first magnetic recording layer.

20070212576, Sep 13, 2007

Mar 8, 2006

11/370404

Adam Brodd - Minneapolis MN, US
Meng Hsieh - Woodbury MN, US
Douglas Johnson - Stillwater MN, US
Larold Olson - Lindstrom MN, US

G11B 5/716
B05D 5/12

428839000, 428840300, 427127000

A magnetic recording medium for storing digital data includes a flexible substrate, a first magnetic side, and a second magnetic side. The flexible substrate defines a first surface and a second surface opposite the first surface. The first magnetic side has a resistivity of less than about 2×10ohms/square and includes a first support layer and a first magnetic layer. The first support layer is substantially non-magnetic and extends over the first surface of the substrate. The first magnetic recording layer extends over the first support layer opposite the substrate. The second magnetic side includes a second support layer and a second magnetic layer. The second support layer is substantially non-magnetic and extends over the second surface of the substrate. The second magnetic recording layer extends over the second support layer opposite the substrate.

20080305366, Dec 11, 2008

Jun 8, 2007

11/811159

Meng C. Hsieh - Woodbury MN, US
Matthew N. Fraley - Minneapolis MN, US
Timo E. Mahonen - Stacy MN, US
Larold L. Olson - Lindstrom MN, US

G11B 5/65
B05D 5/12

428835, 427131, 428834

A magnetic recording tape configured for increased surface lubricity includes an elongated substrate and a magnetic side disposed on the substrate. The magnetic side includes a magnetic recording layer defining an exposed magnetic recording surface opposite the substrate, and a support layer deposited on the substrate between the substrate and the magnetic recording layer. The support layer includes nano-particles configured to release lubrication to the exposed magnetic recording surface. In this regard, the support layer configures the exposed magnetic recording surface to have a surface lubrication to total lubrication ratio (SL ratio) of greater than about 5%.

20110242698, Oct 6, 2011

Apr 2, 2010

12/753718

David C. Lowery - Roberts WI, US
Stephen R. Ebner - Stillwater MN, US
Ryosuke Isobe - Superior CO, US
Larold L. Olson - Lindstrom MN, US
Michael P. Sharrock - St. Paul MN, US
Scott A. Walker - White Bear Lake MN, US

Imation Corp. - St. Paul MN

G11B 21/02
G11B 5/66

360 75, 428831, G9B 21003

Magnetic storage media that include a multilayer structure are described. In general, the magnetic storage media include a substrate, an underlayer that includes a plurality of underlayer particles formed over the substrate, and a magnetic layer that includes a plurality of magnetic particles formed over the underlayer. The magnetic layer may define a saturated magnetization and thickness product less than or equal to approximately 1.00 memu per square centimeter, and the magnetic particles may be selected from the group consisting of magnetic platelet-shaped particles and magnetic particles with an aspect ratio less than or equal to approximately 1.5. In addition, the described magnetic storage media may exhibit minimal interlayer diffusion between the underlayer and magnetic layer. Reduced interlayer diffusion between different layers of a magnetic recording medium may result in an improved magnetic recording surface for recording and storing data.

20110244114, Oct 6, 2011

Apr 2, 2010

12/753738

David C. Lowery - Roberts WI, US
Stephen R. Ebner - Stillwater MN, US
Bruce H. Edwards - White Bear Lake MN, US
Ryosuke Isobe - Superior CO, US
Larold L. Olson - Lindstrom MN, US
Michael P. Sharrock - St. Paul MN, US
Scott A. Walker - White Bear Lake MN, US

Imation Corp. - St. Paul MN

G11B 5/84

427 8, 427130, 427548

Magnetic storage media and methods for constructing magnetic storage media that include a multilayer structure are described. In some examples, a magnetic recording medium can be formed by forming an underlayer over a substrate, drying the underlayer, milling a plurality of magnetic particles, and forming a magnetic layer that includes the plurality of magnetic particles over the underlayer. The magnetic particles may be selected from the group consisting of magnetic platelet-shaped particles and magnetic particles with an aspect ratio less than or equal to approximately 1.5. In addition, the milling process may include milling the plurality of magnetic particles so a magnetic medium formed in the absence of an applied magnetic field exhibits a longitudinal squareness less than or equal to approximately 0.40.

20110244118, Oct 6, 2011

Apr 2, 2010

12/753730

David C. Lowery - Roberts WI, US
Stephen R. Ebner - Stillwater MN, US
Bruce H. Edwards - White Bear Lake MN, US
Ryosuke Isobe - Superior CO, US
Larold L. Olson - Lindstrom MN, US
Michael P. Sharrock - St. Paul MN, US
Scott A. Walker - White Bear Lake MN, US

Imation Corp. - St. Paul MN

G11B 5/84

427130

Magnetic storage media and methods for constructing magnetic storage media that include a multilayer structure are described. In general, the magnetic storage media include a substrate, an underlayer formed over the substrate, and a magnetic layer that includes a plurality of magnetic particles formed over the underlayer. In some examples, a magnetic recording medium can be formed by forming an underlayer over a substrate, drying the underlayer, and heat-curing the underlayer prior to forming a magnetic layer over the underlayer. A magnetic layer can then be formed over the underlayer. The magnetic layer may includes a plurality of magnetic particles selected from the group consisting of magnetic platelet-shaped particles and magnetic particles with an aspect ratio less than or equal to approximately 1.5, may then be formed over the underlayer. By heat-curing the underlayer prior to forming the magnetic layer over the underlayer, the formed magnetic recording medium may exhibit an improved magnetic recording surface for recording and storing data.