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Amsterdam, Netherlands

Hitachi Global Storage Technologies

USPTO Granted Patents = 52

Forward Citations = 382

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143 inventors (with patents filed for the assignee):

Edward Hin Pong Lee (4 out of 87 patents)

Howard Gordon Zolla (4 out of 47 patents)

Wen-Chien David Hsiao (3 out of 92 patents)

4. Donald Ray Gillis (3 out of 80 patents)

5. Jih-Shiuan Luo (2 out of 26 patents)

6. Mustafa Pinarbasi (2 out of 251 patents)

7. James Mac Freitag (2 out of 108 patents)

8. Zvonimir Z Bandic (2 out of 115 patents)

9. Thomas R Albrecht (2 out of 167 patents)

10. Tzong-Shii Pan (2 out of 96 patents)

11. Ta-Chang Fu (2 out of 26 patents)

12. Masafumi Mochizuki (2 out of 66 patents)

13. Surya Narayan Pattanaik (2 out of 47 patents)

14. Gordon James Smith (2 out of 168 patents)

15. Marie-Claire Cyrille (2 out of 23 patents)

Core Competencies:

Magnetic Head

Data Storage Device

Disk Drive

Magnetoresistive Sensor

Servo Patterns

Electro-Thermal Actuator

Thermal Stability

Thin Film Heads

Write Head Design

Lubricant Bonding

Track Density

Corrosion Protection

52 patents: Sort by Forward Citations

1. 7706096 - Disk drive device manufacturing method thereof, and method for specifying data track pitch for the disk drive device (2010-04-27),

2. 7475470 - Method for manufacturing a magnetic head for perpendicular recording (2009-01-13),

3. 7449790 - Methods and systems of enhancing stepper alignment signals and metrology alignment target signals (2008-11-11),

4. 7440243 - Read sensors of the CPP type having nitrogenated hard bias layers and method of making the same (2008-10-21),

5. 7426086 - Off track write protection for data storage device (2008-09-16),

6. 7377765 - System, method, and apparatus for non-contact and diffuse curing exposure for making photopolymer nanoimprinting stamper (2008-05-27),

7. 7365930 - Load/unload mechanism for magnetic disk drive (2008-04-29),

8. 7349184 - System and apparatus for continuous reference plane for wireless suspension (2008-03-25),

9. 7342735 - Method of writing patterns onto a recording disk, and data storage device (2008-03-11),

10. 7263762 - Method for reducing pole height loss in the formation of a write pole for a magnetic write head (2007-09-04),

11. 7251096 - Shock induced cleaning for hard disk drives (2007-07-31),

12. 7236324 - Apparatus, method and system for fabricating servo patterns on high density patterned media (2007-06-26),

13. 7230799 - Electro-thermal micromechanical actuator for finitely positioning a storage device slider and methods of use and manufacture (2007-06-12),

14. 7213195 - Data decoding method and circuit and information recording and reproducing apparatus using the same (2007-05-01),

15. 7203607 - System and method for determining intergranular exchange in perpendicular recording media (2007-04-10),

Hitachi Global Storage Technologies is a global leader in data storage solutions, providing high-quality hard drives and solid-state drives for a wide range of applications. With a focus on innovation and reliability, HGST offers cutting-edge technology to meet the evolving storage needs of businesses and individuals around the world.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

52 Patents

#14 in Amsterdam

#155 in Netherlands

#13,143 in the World

Amsterdam, Netherlands

Hitachi Global Storage Technologies

Forward Citations = 382

143 inventors:

Edward Hin Pong Lee (4 out of 87 patents)

Howard Gordon Zolla (4 out of 47 patents)

Wen-Chien David Hsiao (3 out of 92 patents)

4. Donald Ray Gillis (3 out of 80 patents)

5. Jih-Shiuan Luo (2 out of 26 patents)

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