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For the Inventor, By the Inventor

Ithaca, NY, United States of America

Robert A Buhrman

USPTO Granted Patents = 12 

Average Co-Inventor Count = 3.1

ph-index = 6

Forward Citations = 186(Granted Patents)


Company Filing History:

goldMedal11 out of 1,360 
 
Cornell University
 patents
silverMedal1 out of 16,080 
 
USA As Represented by Secretary of the Navy
 patents

Years Active: 1987-2022

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12 patents (USPTO):Explore Patents
1. 11444240 - Giant enhancement of spin-orbit torque by interface scattering from ultra-thin insertion layers (2022-09-13),
2. 10847197 - Circuits and devices based on enhanced spin Hall effect for efficient spin transfer torque (2020-11-24),
3. 10333058 - Nanosecond-timescale low-error switching of 3-terminal magnetic tunnel junction circuits through dynamic in-plane-field assisted spin-hall effect (2019-06-25),
4. 10008248 - Circuits and devices based on enhanced spin hall effect for efficient spin transfer torque (2018-06-26),
5. 9947382 - Electrically gated three-terminal circuits and devices based on spin hall torque effects in magnetic nanostructures apparatus, methods and applications (2018-04-17),
6. 9691458 - Circuits and devices based on spin hall effect to apply a spin transfer torque with a component perpendicular to the plane of magnetic layers (2017-06-27),
7. 9577653 - Quasi-linear spin torque nano-oscillators (2017-02-21),
8. 9576631 - Spin hall effect magnetic apparatus, method and applications (2017-02-21),
9. 9502087 - Electrically gated three-terminal circuits and devices based on spin hall torque effects in magnetic nanostructures apparatus, methods and applications (2016-11-22),
10. 9230626 - Electrically gated three-terminal circuits and devices based on spin hall torque effects in magnetic nanostructures apparatus, methods and applications (2016-01-05),
11. 9105832 - Spin hall effect magnetic apparatus, method and applications (2015-08-11),
12. 4654231 - Vanadium dioxide film deposition (1987-03-31),

Title: The Innovations of Robert A. Buhrman

Introduction

Robert A. Buhrman is a prominent inventor based in Ithaca, NY (US), known for his significant contributions to the field of magnetic devices and spintronics. With a total of 12 patents, Buhrman's work has had a profound impact on the development of technologies that utilize spin-orbit torque and spin transfer torque.

Latest Patents

Among his latest patents is the invention titled "Giant enhancement of spin-orbit torque by interface scattering from ultra-thin insertion layers." This patent discloses methods, systems, and devices aimed at enhancing spin-orbit torque. The invention features a magnetic device that includes a magnetic tunneling junction (MTJ) with a free magnetic layer, a pinned magnetic layer, and a non-magnetic junction layer. Additionally, it incorporates a spin Hall effect metal layer that utilizes insertion metal layers to introduce interfacial scattering of electrons, thereby increasing the spin current that interacts with the free magnetic layer's magnetization.

Another notable patent is focused on "Circuits and devices based on enhanced spin Hall effect for efficient spin transfer torque." This invention describes devices or circuits that leverage spin torque transfer (STT) and the Spin Hall effect. The efficiency of the STT effect can be enhanced through interface modifications or by engineering the SHE metal layer, which can be achieved by doping with specific impurities.

Career Highlights

Robert A. Buhrman has had a distinguished career, working at esteemed institutions such as Cornell University and the United States Navy. His research has paved the way for advancements in magnetic technologies and has garnered recognition in the scientific community.

Collaborations

Throughout his career, Buhrman has collaborated with notable colleagues, including Daniel C. Ralph and Chi-feng Pai. These collaborations have contributed to the development of innovative technologies in the field of spintronics.

Conclusion

Robert A. Buhrman's contributions to the field of magnetic devices and spintronics are significant and impactful. His innovative patents and collaborations continue to influence advancements in technology.

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