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Milpitas, CA, United States of America

Headway Technologies, Incorporated

USPTO Granted Patents = 1,216

EPO Patents = 37

Forward Citations = 11,529

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328 inventors (with patents filed for the assignee):

Yoshitaka Sasaki (337 out of 479 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. Cherng-Chyi Han (102 out of 102 patents)

10. Moris Musa Dovek (102 out of 123 patents)

11. Ru-Ying Tong (98 out of 174 patents)

12. Kazuki Sato (91 out of 128 patents)

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

14. Yuhui Tang (73 out of 73 patents)

15. Atsushi Iijima (72 out of 108 patents)

Core Competencies:

Perpendicular Magnetic Recording

Heat-Assisted Magnetic Recording

Spin Torque Oscillator

Plasmonic Waveguide

Magnetic Tunnel Junction

Near Field Transducer

Magnetoresistive Element

Bias Control

Reader Noise Reduction

Current Distribution Optimization

Thermally-Assisted Magnetic Recording

Magnetic Anisotropy

1,216 patents: Sort by Forward Citations

1. 12525255 - Optimizing a current distribution in write heads for efficient energy-assisted magnetic recording (2026-01-13),

2. 12512120 - Spin-orbit torque assisted magnetic write head structure for perpendicular magnetic recording (2025-12-30),

3. 12469518 - Recessed write gap material for enhanced bias current injection and maximizing aerial density capacity in perpendicular magnetic recording (2025-11-11),

4. 12456485 - Noble metal coated plasmonic waveguide blocker for heat assisted magnetic recording head (2025-10-28),

5. 12456484 - Tapered optical and magnetic elements for improved writing in heat-assisted magnetic recording (2025-10-28),

6. 12451156 - Dual-spin torque oscillator designs in microwave assisted magnetic recording (2025-10-21),

7. 12444436 - Parabolic shaped plasmonic waveguide blocker for heat assisted recording head (2025-10-14),

8. 12437778 - Electroplating of high damping material for trailing shield in a perpendicular magnetic recording writer (2025-10-07),

9. 12387750 - DFH heater design (2025-08-12),

10. 12380917 - Perpendicular magnetic recording writer with tunable two bias branches (2025-08-05),

11. 12354628 - Hybrid plasmonic bottom layer for increased near field transducer reliability (2025-07-08),

12. 12322419 - Spin injection assisted magnetic recording (2025-06-03),

13. 12310245 - Etching and encapsulation scheme for magnetic tunnel junction fabrication (2025-05-20),

14. 12288568 - Near field transducer with template layer for improved reliability (2025-04-29),

15. 12266384 - Tunneling magnetoresistance device with magnetically soft high moment free layer (2025-04-01),

Headway Technologies, Incorporated is a leading provider of advanced magnetic recording head technology for the hard disk drive industry. With a history spanning over 30 years, Headway Technologies has established itself as an industry pioneer in developing innovative solutions for data storage. The company focuses on research, development, and manufacturing of thin-film recording heads, which play a critical role in the performance and capacity of hard drives. Headway Technologies continues to push the boundaries of magnetic recording technology, driving advancements in the storage industry.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Jan 20 2026

1,216 Patents

#4 in Milpitas, CA

#96 in California

#405 in US

#809 in the World

Milpitas, CA, United States of America

Headway Technologies, Incorporated

Forward Citations = 11,529

328 inventors:

Yoshitaka Sasaki (337 out of 479 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)

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