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Lake Forest, CA, United States of America

Western Digital Corporation

USPTO Granted Patents = 234

Trademarks = 1

Forward Citations = 13,114

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237 inventors (with patents filed for the assignee):

Kenneth W Ouyang (18 out of 18 patents)

Karl M Lofgren (14 out of 16 patents)

Daniel John Sokolov (14 out of 14 patents)

4. Richard William Hull (13 out of 21 patents)

5. Timothy G O'Shaughnessy (11 out of 11 patents)

6. Carl Bonke (11 out of 11 patents)

7. Jeffrey L Williams (10 out of 17 patents)

8. Raffi Codilian (10 out of 95 patents)

9. Robert L Cloke (9 out of 37 patents)

10. Gerald W Shearer (8 out of 8 patents)

11. Shawn E Casey (7 out of 24 patents)

12. Charles Royston Patton, Iii (7 out of 20 patents)

13. John Robert Edwards (7 out of 17 patents)

14. Nils E Larson (6 out of 24 patents)

15. Randall M Chung (6 out of 17 patents)

Core Competencies:

Object Storage Monitoring

Thermal Pole Tip Protrusion

Wear Leveling Techniques

Microactuator Design

Electrostatic Microactuator

Inductive Transducer

Disk Drive Servo Control

Data Integrity Latch

Write Reallocation Techniques

High-Rate Coding

Spindle Motor Technology

Data Transfer Optimization

234 patents: Sort by Forward Citations

1. 9928203 - Object storage monitoring (2018-03-27),

2. 6859343 - Hybrid diffuser for minimizing thermal pole tip protrusion and reader sensor temperature (2005-02-22),

3. 6850443 - Wear leveling techniques for flash EEPROM systems (2005-02-01),

4. 6771468 - Slider with high pitch-stiffness air bearing design (2004-08-03),

5. 6760196 - Microactuator with offsetting hinges and method for high-resolution positioning of magnetic read/write head (2004-07-06),

6. 6757140 - Electrostatic microelectromechanical (MEM) microactuator for precise read/write head positioning (2004-06-29),

7. 6724572 - Inductive transducer with recessed leading pole layer (2004-04-20),

8. 6281652 - Method of using two low-resolution DACS for converting high-resolution digital demands into analog output signals that monotonically drive an actuator motor in a disk drive (2001-08-28),

9. 6278568 - Disk drive employing read channel IC with common port for data and servo (2001-08-21),

10. 6271604 - Integrated computer module having a data integrity latch (2001-08-07),

11. 6263459 - On the fly write reallocation (2001-07-17),

12. 6262857 - Disk drive including a recording surface employing servo zones with banded data zones (2001-07-17),

13. 6256695 - Disk drive method of determining SCSI bus state information after a SCSI bus reset condition (2001-07-03),

14. 6249393 - Disk drive having a write condition detector for suspending write operations while a transducer flying height deviates from its operating flying height (2001-06-19),

15. 6246346 - Storage system employing high-rate code with constraint on run length between occurrences of an influential pattern (2001-06-12),

Western Digital Corporation is an American data storage company that designs, manufactures and sells data storage devices and solutions. They provide a wide range of products including hard disk drives, solid-state drives, memory cards, and storage solutions for personal and enterprise use. With a strong focus on innovation and cutting-edge technology, Western Digital aims to empower customers to capture, preserve, and transform their data. Visit their website for more information.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

234 Patents

#1 in Lake Forest, CA

#391 in California

#1,723 in US

#3,551 in the World

Lake Forest, CA, United States of America

Western Digital Corporation

Forward Citations = 13,114

237 inventors:

Kenneth W Ouyang (18 out of 18 patents)

Karl M Lofgren (14 out of 16 patents)

Daniel John Sokolov (14 out of 14 patents)

4. Richard William Hull (13 out of 21 patents)

5. Timothy G O'Shaughnessy (11 out of 11 patents)

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