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Milpitas, CA, United States of America

Headway Technologies, Incorporated

USPTO Granted Patents = 1,228

% Expired Patents = 27.9

EPO Patents = 37

Forward Citations = 11,663

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330 inventors (with patents filed for the assignee):

Yoshitaka Sasaki (337 out of 482 patents)

Hiroyuki Ito (212 out of 213 patents)

Min Li (191 out of 203 patents)

4. Shigeki Tanemura (167 out of 174 patents)

5. Hironori Araki (137 out of 138 patents)

6. Kunliang Zhang (123 out of 132 patents)

7. Cheng Tzong Horng (113 out of 167 patents)

8. Kochan Ju (111 out of 140 patents)

9. Moris Musa Dovek (104 out of 125 patents)

10. Cherng-Chyi Han (102 out of 102 patents)

11. Ru-Ying Tong (98 out of 176 patents)

12. Kazuki Sato (91 out of 128 patents)

13. Mao-Min Chen (82 out of 105 patents)

14. Yuhui Tang (77 out of 77 patents)

15. Atsushi Iijima (72 out of 108 patents)

Core Competencies:

Perpendicular Magnetic Recording

Spin Torque Oscillator

Heat-Assisted Magnetic Recording

Magnetic Tunnel Junction

Near Field Transducer

Thermally-Assisted Recording

Adaptive Bias Control

Reader Noise Reduction

Magnetic Anisotropy

Magnetic Flux Guiding

Spin Injection

Electroplating

1,228 patents: Sort by Forward Citations

1. 12738293 - Writer with patterned hot seed layer (2026-09-15),

2. 12731605 - Magnetic flux guiding device with spin torque oscillator (STO) film having negative spin polarization layers in assisted writing application (2026-09-08),

3. 12718839 - Magneto-resistive reader utilizing read shields to maintain reference layer magnetization (2026-08-25),

4. 12711985 - Heat Assisted Magnetic Recording Head with Slider and Laser Diode (2026-08-18),

5. 12706118 - Near field transducer with template layer for improved reliability (2026-08-11),

6. 12706113 - Perpendicular magnetic recording writer with tunable pole side bridge design (2026-08-11),

7. 12694894 - Pre-assisting microwave magnetic recording based on spin-hall nano-oscillators (2026-07-28),

8. 12658201 - Tapered magnetic main pole structure with variable peg gap for heat-assisted magnetic recording technology (2026-06-16),

9. 12603103 - Perpendicular magnetic recording head equipping a spin torque oscillator element with an electric current in side gaps (2026-04-14),

10. 12597436 - Pre-assisting microwave-assisted magnetic recording with spin-torque nano-oscillators (2026-04-07),

11. 12592253 - Tapered bi-layer near field transducer for heat-assisted magnetic recording write heads (2026-03-31),

12. 12550623 - Nitride diffusion barrier structure for spintronic applications (2026-02-10),

13. 12525255 - Optimizing a current distribution in write heads for efficient energy-assisted magnetic recording (2026-01-13),

14. 12512120 - Spin-orbit torque assisted magnetic write head structure for perpendicular magnetic recording (2025-12-30),

15. 12469518 - Recessed write gap material for enhanced bias current injection and maximizing aerial density capacity in perpendicular magnetic recording (2025-11-11),

Headway Technologies, Incorporated, based in Milpitas, California, specializes in advanced magnetic recording technology. The company focuses on developing innovative solutions such as Perpendicular Magnetic Recording and Heat-Assisted Magnetic Recording, which enhance data storage capabilities. Its expertise extends to Spin Torque Oscillators and Magnetic Tunnel Junctions, contributing to the evolution of high-density data storage. Headway is committed to pushing the boundaries of magnetic recording technologies, ensuring improved performance and reliability in data storage applications.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

Headway Technologies, Incorporated

1,228 Patents

#5 in Milpitas, CA

#101 in California

#414 in US

#831 in the World

Milpitas, CA, United States of America

Headway Technologies, Incorporated

Forward Citations = 11,663

330 inventors:

Yoshitaka Sasaki (337 out of 482 patents)

Hiroyuki Ito (212 out of 213 patents)

Min Li (191 out of 203 patents)

4. Shigeki Tanemura (167 out of 174 patents)

5. Hironori Araki (137 out of 138 patents)

Please report any incorrect information to [email protected]

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