Lengsfield, III; Byron Hassberg

Patent Applications and Registrations

Patent applications and USPTO patent grants for Lengsfield, III; Byron Hassberg.The latest application filed is for "perpendicular magnetic recording exchange-spring type medium with a lateral coupling layer for increasing intergranular exchange coupling in the lower magnetic layer".

Company Profile

0.11.4

Lengsfield, III; Byron Hassberg - Gilroy CA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Patterned perpendicular magnetic recording medium with exchange coupled recording layer structure and magnetic recording system using the medium Grant 8,021,769 - Berger , et al. September 20, 2	2011-09-20
Perpendicular write head with independent trailing shield designs Grant 7,894,159 - Lengsfield, III , et al. February 22, 2	2011-02-22
Perpendicular magnetic recording exchange-spring type medium with a lateral coupling layer for increasing intergranular exchange coupling in the lower magnetic layer Grant 7,846,563 - Berger , et al. December 7, 2	2010-12-07
Perpendicular Magnetic Recording Exchange-spring Type Medium With A Lateral Coupling Layer For Increasing Intergranular Exchange Coupling In The Lower Magnetic Layer App 20090290256 - Berger; Andreas Klaus ; et al.	2009-11-26
Perpendicular magnetic recording exchange-spring type medium with a lateral coupling layer for increasing intergranular exchange coupling in the lower magnetic layer Grant 7,588,841 - Berger , et al. September 15, 2	2009-09-15
Perpendicular magnetic recording medium with an exchange-spring recording structure and a lateral coupling layer for increasing intergranular exchange coupling Grant 7,582,368 - Berger , et al. September 1, 2	2009-09-01
Perpendicular magnetic recording medium with exchange-spring structure having multiple exchange-spring layers and recording system for the medium Grant 7,572,526 - Berger , et al. August 11, 2	2009-08-11
Perpendicular magnetic recording medium with improved antiferromagnetically-coupled recording layer Grant 7,572,527 - Fullerton , et al. August 11, 2	2009-08-11
Perpendicular magnetic recording medium with multiple exchange-coupled magnetic layers having substantially similar anisotropy fields Grant 7,550,210 - Berger , et al. June 23, 2	2009-06-23
Discrete Track Media With A Capped Media Structure Having High Moment And Exchange App 20090155627 - Berger; Andreas Klaus ; et al.	2009-06-18
Perpendicular magnetic recording system with medium having thin soft underlayer and recording head having thick-throat trailing shield Grant 7,532,432 - Ikeda , et al. May 12, 2	2009-05-12
Laminated magnetic thin films with weak antiferromagnetic coupling for perpendicular magnetic recording Grant 7,529,065 - Fullerton , et al. May 5, 2	2009-05-05
Patterned Perpendicular Magnetic Recording Medium With Exchange Coupled Recording Layer Structure And Magnetic Recording System Using The Medium App 20080292907 - Berger; Andreas Klaus ; et al.	2008-11-27
Apparatus, system, and method for writing magnetically encoded data to discrete lands Grant 7,443,630 - Lengsfield, III , et al. October 28, 2	2008-10-28
Apparatus, System, And Method For Writing Magnetically Encoded Data To Discrete Lands App 20070236820 - Lengsfield III; Byron Hassberg ; et al.	2007-10-11

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