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Jeffrey Childress

This inventor holds 99 USPTO granted patents and 1 published patent application and 11 EPO patents, primarily in Magnetoresistive Sensors (CPC class G01R33-098). Top assignees: Hitachi Global Storage Technologies Netherlands B.v., Hgst Netherlands, B.v., Allegro Microsystems, LLC. Active years: 2002-2026.

USPTO Granted Patents = 99 (Patent Applications = 1)

% Patents Active = 44.4

EPO Patents = 11 (Patent Applications = 13)

Average Co-Inventor Count = 3.2

ph-index = 16

Forward Citations = 879(Granted Patents)

Forward Citations (Not Self Cited) = 813(Dec 10, 2025)

Inventors with similar research interests:

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Company Filing History:

52 out of 2,636

Hitachi Global Storage Technologies Netherlands B.v.

patents

24 out of 987

Hgst Netherlands, B.v.

patents

12 out of 997

Allegro Microsystems, LLC

patents

4. 7 out of 166,264

International Business Machines Corporation

6. 1 out of 834,411

Other

patents

Years Active: 2002-2026

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Areas of Expertise:

Magnetoresistive Element

Tunneling Magnetoresistance

Magnetic Sensor

High Sensitivity

Two-Dimensional Magnetic Field

Current-Perpendicular-to-the-Plane

Giant Magnetoresistance

Magnetic Field Detection

Sensor Accuracy

Magnetic Recording Head

Ferromagnetic Layers

Magnetic Shield

99 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12716970 - Method to calculate performance of a magnetic element comprising a ferromagnetic layer exchange-coupled to an antiferromagnetic layer (2026-08-25),

2. 12676611 - Low-power magnetic sensing device and magnetic switch device comprising the magnetic sensing device (2026-07-07),

3. 12442871 - Magnetoresistive element having compensated temperature coefficient of TMR (2025-10-14),

4. 12360183 - Magnetoresistive element and magnetic sensor device having a high sensitivity and low zero-field offset-shift (2025-07-15),

5. 12320873 - Magnetoresistive element for sensing a magnetic field in a Z-axis (2025-06-03),

6. 12313707 - Magnetoresistive sensor element having compensated temperature coefficient of sensitivity and method for manufacturing said element (2025-05-27),

7. 12287381 - Magnetoresistive sensor element for sensing a two-dimensional magnetic field with low high-field error (2025-04-29),

8. 12228620 - Magnetic sensor element and device having improved accuracy under high magnetic fields (2025-02-18),

9. 12204005 - Magnetoresistive sensor element having a wide linear response and robust nominal performance and manufacturing method thereof (2025-01-21),

10. 12174276 - Magnetoresistive element for a 2D magnetic sensor having a reduced hysteresis response (2024-12-24),

11. 12102011 - Magnetic sensor comprising magnetoresistive elements and system for programming such magnetic sensor (2024-09-24),

12. 12092706 - Magnetic field sensor for sensing a two-dimensional external magnetic field having a low anisotropy field (2024-09-17),

13. 11397863 - Magnetic reader sensor device for reading magnetic stripes and method for manufacturing the sensor device (2022-07-26),

14. 11017828 - Apparatus for generating a magnetic field and method of using said apparatus (2021-05-25),

15. 10663537 - Magnetic sensor cell for measuring one- and two-dimensional magnetic fields and method for measuring said magnetic fields using the magnetic sensor cell (2020-05-26),

Title: The Innovative Journey of Jeffrey Childress

Introduction:

Jeffrey Childress, a prolific inventor based in San Jose, CA, has made significant contributions to the field of magnetic reader sensors through his numerous patents and innovative technologies.

Latest Patents:

Childress' latest patents showcase his expertise in magnetic reader sensor devices. One notable invention is a magnetic reader sensor device designed for high-resolution reading of magnetic stripes. This device features a protective layer with exceptional Vickers hardness, ensuring durability and precision in reading magnetic data. Additionally, he created an apparatus for generating a magnetic field with permanent magnets arranged strategically for efficient magnetic field generation.

Career Highlights:

Throughout his career, Childress has accumulated an impressive total of 87 patents, demonstrating his dedication to innovation in the tech industry. His work at companies like Hitachi Global Storage Technologies Netherlands B.V. and HGST Netherlands B.V. has been instrumental in advancing magnetic sensor technology.

Collaborations:

Childress has collaborated with talented individuals such as Matthew Joseph Carey and Stefan Maat, further enhancing his innovative projects and fostering a culture of creativity and teamwork in the workplace.

Conclusion:

Jeffrey Childress's inventive spirit and expertise in magnetic sensor technology have cemented his reputation as a leading figure in the field of technology and innovation. His contributions continue to drive progress and shape the future of magnetic sensor devices.

Profile summary based on public USPTO records.

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