Scotts Valley, CA, United States of America

James A McDonald, Iii

This inventor holds 1 USPTO granted patent. Top assignee: Nec Corporation. Active years: 1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: James A McDonald, Iii. Retrieved from https://idiyas.com/inventor/james-a-mcdonald-iii

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 11.0

ph-index = 1

Forward Citations = 26(Granted Patents)


Company Filing History:


Years Active: 1994

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1 patent (USPTO):Explore Patents

Title: The Innovations of James A. McDonald, III

Introduction

James A. McDonald, III is a notable inventor based in Scotts Valley, California. He is recognized for his contributions to the field of computer technology, particularly in the development of hard disk drives. His innovative work has led to the creation of a patent that showcases his expertise and vision in this area.

Latest Patents

One of McDonald’s significant patents is for a micro miniature hard disk drive. This hard disk drive is designed for computer systems and features a head disk assembly with a disk platter measuring approximately one-and-eight-tenths inches in diameter. It is capable of storing more than forty megabytes of data. The design includes data tracks spaced at approximately 2,558 tracks per inch, with each track containing around 36,000 flux changes per inch. The actuator positions a pair of read/write heads on each platter surface using a voice coil motor, ensuring precise data access. Additionally, a magnetic actuator latch secures the heads in a parked position, while a spindle motor rotates the platter at approximately 5,400 revolutions per minute. The entire assembly is hermetically sealed to protect its components from external interference.

Career Highlights

James A. McDonald, III is currently associated with NEC Corporation, where he continues to innovate and contribute to advancements in technology. His work has not only enhanced the performance of hard disk drives but has also paved the way for future developments in data storage solutions.

Collaborations

Throughout his career, McDonald has collaborated with notable colleagues, including Bryan T. Silbermann and Ronald R. Moon. These partnerships have fostered a creative environment that encourages the exchange of ideas and technological advancements.

Conclusion

James A. McDonald, III is a distinguished inventor whose work in micro miniature hard disk drives has made a significant impact on the technology industry. His innovative spirit and dedication to excellence continue to inspire future generations of inventors.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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