Morgan Hill, CA, United States of America

David John Seagle

This inventor holds 116 USPTO granted patents and 6 published patent applications, primarily in Magnetic Recording Heads (CPC class G11B5-00813). Top assignees: Hitachi Global Storage Technologies Netherlands B.v., Hgst Netherlands, B.v., Western Digital Technologies, Inc.. Active years: 1996-2026.

USPTO Granted Patents = 116 (Patent Applications = 6)

% Patents Active = 56.9

Average Co-Inventor Count = 2.6

ph-index = 21

Forward Citations = 3,051(Granted Patents)

Forward Citations (Not Self Cited) = 2,986(Dec 10, 2025)

Inventors with similar research interests:

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Location History:

Santa Barbara, CA (US) (2001 - 2005)
Morgan Hill, CA (US) (1996 - 2024)

Company Filing History:

34 out of 2,636

Hitachi Global Storage Technologies Netherlands B.v.

patents

23 out of 987

Hgst Netherlands, B.v.

patents

22 out of 5,424

Western Digital Technologies, Inc.

patents

4. 21 out of 166,264

International Business Machines Corporation

patents

5. 16 out of 728

Western Digital (Fremont), Inc.

patents

Years Active: 1996-2026

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Areas of Expertise:

Magnetic Recording

Tape Heads

Servo Readers

Data Storage

Transducers

TMR Sensors

Bias Stabilization

Electrical Shielding

Multi-Channel

Signal-to-Noise Ratio

Wear Layer

Flux Guide

116 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12658206 - Servo write head for writing servo patterns having opposite- polarity bars (2026-06-16),

2. 12374358 - Tape heads having tiered servo readers (2025-07-29),

3. 12322424 - 3-band magnetic recording tape and tape drive (2025-06-03),

4. 12148447 - HDD head having same gap verify and system for using same (2024-11-19),

5. 12094502 - Offset edge of servo heads relative to data heads for signal-to-noise ratio optimization in a tape head module (2024-09-17),

6. 12094496 - Dual circuit isolation of writer to reader crosstalk for SGV modules (2024-09-17),

7. 12087336 - Tape heads having shifted array/pad arrangements (2024-09-10),

8. 11990162 - Independent reader/writer overcoats for an SGV tape head (2024-05-21),

9. 11862195 - Multi-channel recording head having servo readers proximate to write transducers and read transducers (2024-01-02),

10. 11776565 - Tape head with side-shielded writers and process for making same (2023-10-03),

11. 11682421 - Tape head design having a null shield for same gap verify (2023-06-20),

12. 11646053 - Tape head design having same gap verify capabilities (2023-05-09),

13. 11514929 - Magnetic recording head having same-gap read-after-write (2022-11-29),

14. 11373683 - Data storage device using laterally offset read element to compensate for tape stretch (2022-06-28),

15. 11227628 - Recessed tape servo head to create an equipotential tape bearing surface (2022-01-18),

Title: The Innovative Mind of David John Seagle

Introduction:

David John Seagle, a talented inventor based in Morgan Hill, CA, has made significant contributions to the field of technology with his creative and groundbreaking ideas.

Latest Patents:

David John Seagle holds several patents in various technological domains, showcasing his versatility and ingenuity in inventing new solutions to complex problems.

Career Highlights:

Throughout his illustrious career, David John Seagle has been recognized for his innovative spirit and dedication to pushing the boundaries of technology. His work has revolutionized industries and improved the lives of many.

Collaborations:

David John Seagle has collaborated with leading tech companies and research institutions to bring his inventions to life. His ability to work effectively in teams has led to successful partnerships and groundbreaking innovations.

Conclusion:

In conclusion, David John Seagle stands as a beacon of creativity and innovation in the world of technology. His passion for inventing and his drive to make a difference continue to inspire others in the field.