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For the Inventor, By the Inventor

Taipei, Taiwan

Yun-Jian Chang

This inventor holds 12 USPTO granted patents. Top assignee: Chiun Mai Communication Systems, Inc.. Active years: 2016-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yun-Jian Chang. Retrieved from https://idiyas.com/inventor/yun-jian-chang

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

USPTO Granted Patents = 12

% Patents Active = 83.3

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 7(Granted Patents)


Company Filing History:

goldMedal12 out of 390 
 
Chiun Mai Communication Systems, Inc.
 patents

Years Active: 2016-2026

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12 patents (USPTO):Explore Patents
1. 12658582 - Antenna structure and electronic device using the same (2026-06-16),
2. 12322885 - Antenna structure and wireless communication device using same (2025-06-03),
3. 12199354 - Antenna structure and wireless communication device using the same (2025-01-14),
4. 11101547 - Antenna apparatus and wireless communication device using same (2021-08-24),
5. 11043732 - Antenna structure (2021-06-22),
6. 10985460 - Antenna structure (2021-04-20),
7. 10644382 - Antenna assembly and wireless communication device employing same (2020-05-05),
8. 10566694 - Antenna structure and wireless communication device using same (2020-02-18),
9. 10566681 - Antenna structure and wireless communication device using same (2020-02-18),
10. 10547100 - Antenna structure and wireless communication device using same (2020-01-28),
11. 10498010 - Antenna structure and wireless communication device using same (2019-12-03),
12. 9450287 - Broadband antenna and wireless communication device employing same (2016-09-20),

Title: Innovations of Yun-Jian Chang in Wireless Communication Technology

Introduction

Yun-Jian Chang is a prominent inventor based in Taipei, Taiwan. He has made significant contributions to the field of wireless communication, holding a total of 11 patents. His work focuses on developing advanced antenna structures that enhance the performance of wireless devices.

Latest Patents

Among his latest patents is an innovative antenna structure and wireless communication device that utilizes a hinge. This design includes a feed portion, a first radiation portion, and at least one ground portion. The antenna structure generates a radiation signal across various frequency bands when electrical current is fed to the first radiation portion. Another notable patent involves an antenna structure designed for metal-cased wireless devices, which minimizes interference when held in hand. This structure features multiple grounding portions that are electrically connected to the metal frame, ensuring optimal performance.

Career Highlights

Yun-Jian Chang is currently employed at Chiun Mai Communication Systems, Inc., where he continues to push the boundaries of wireless communication technology. His expertise in antenna design has positioned him as a key player in the industry.

Collaborations

He has collaborated with notable colleagues, including Yen-Hui Lin and Jung-Chin Lin, to further advance their research and development efforts in wireless communication.

Conclusion

Yun-Jian Chang's innovative work in antenna technology has significantly impacted the wireless communication sector. His patents reflect a commitment to enhancing device performance and reducing interference, showcasing his role as a leading inventor in this field.

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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