Fremont, CA, United States of America

Jack Chang

This inventor holds 3 USPTO granted patents. Top assignee: Hitachi Global Storage Technologies Netherlands B.v.. Active years: 2007-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Jack Chang. Retrieved from https://idiyas.com/inventor/jack-chang-mdw0ktdy

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


% Patents Active = 33.3

Average Co-Inventor Count = 3.3

ph-index = 1

Forward Citations = 10(Granted Patents)


Company Filing History:


Years Active: 2007-2011

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3 patents (USPTO):Explore Patents

Title: Innovations by Jack Chang in Magnetic Recording Technology

Introduction

Jack Chang is an accomplished inventor based in Fremont, CA. He has made significant contributions to the field of magnetic recording technology, holding a total of 3 patents. His work focuses on improving the efficiency and effectiveness of recording devices.

Latest Patents

Chang's latest patents include advancements in magnetic recording devices. These improvements involve the addition of copper to the recording layer, as well as enhancements to the underlayers. Furthermore, he has described improved manufacturing processes and magnetic properties for media through heating and oxidation. These innovations aim to enhance the overall performance of recording devices.

Career Highlights

Jack Chang is currently employed at Hitachi Global Storage Technologies Netherlands B.V. His role at the company allows him to apply his expertise in magnetic recording technology and contribute to the development of cutting-edge solutions in the industry.

Collaborations

Chang has collaborated with notable colleagues, including Mohammad Taghi Mirzamaani and Kai Tang. Their combined efforts have led to advancements in the field and have fostered a collaborative environment for innovation.

Conclusion

Jack Chang's contributions to magnetic recording technology demonstrate his commitment to innovation and improvement in the industry. His patents reflect a deep understanding of the complexities involved in recording devices, and his work continues to influence the field positively.

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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