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For the Inventor, By the Inventor

Naperville, IL, United States of America

Yong Chang

This inventor holds 5 USPTO granted patents and 2 published patent applications. Top assignee: Epir, Inc.. Active years: 2023-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yong Chang. Retrieved from https://idiyas.com/inventor/yong-chang-kvrph1k2

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

USPTO Granted Patents = 5 

% Patents Active = 100.0

Average Co-Inventor Count = 3.3

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:

goldMedal5 out of 7 
 
Epir, Inc.
 patents

Years Active: 2023-2026

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5 patents (USPTO):Explore Patents
1. 12540905 - System and method for optical mapping of semiconductor wafers at cryogenic temperatures under transmission geometry (2026-02-03),
2. 12317633 - Radiation hardened infrared focal plane array (2025-05-27),
3. 12075701 - HgCdTe metasurface-based terahertz source and detector (2024-08-27),
4. 11725300 - In-situ laser annealing of Te growth defects in CdZnTe (ilast-czt) (2023-08-15),
5. 11670616 - Modified direct bond interconnect for FPAs (2023-06-06),

Title: The Innovations of Yong Chang

Introduction

Yong Chang is a notable inventor based in Naperville, IL (US), recognized for his contributions to technology with a total of 5 patents. His work primarily focuses on advancements in infrared technology and terahertz devices, showcasing his expertise in the field.

Latest Patents

Chang's latest patents include a "Radiation Hardened Infrared Focal Plane Array" and a "HgCdTe Metasurface-Based Terahertz Source and Detector." The first patent describes an FPA that consists of a substrate with spaced-apart implant regions, supplemental metal contacts, and metal conductors, allowing for enhanced functionality in infrared applications. The second patent details a device that utilizes a nanostructured metasurface to achieve transparent conductivity in the visible spectrum, utilizing high-mobility crystalline materials such as HgCdTe.

Career Highlights

Yong Chang is currently employed at Epir, Inc., where he continues to innovate and develop cutting-edge technologies. His work has significantly impacted the field of infrared and terahertz technology, making him a valuable asset to his company and the industry.

Collaborations

Chang collaborates with talented individuals such as Sushant Sonde and Silviu Velicu, contributing to a dynamic work environment that fosters innovation and creativity.

Conclusion

Yong Chang's contributions to technology through his patents and collaborations highlight his role as a leading inventor in the field. His work continues to push the boundaries of what is possible in infrared and terahertz technology.

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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