Taipei, Taiwan

A-Ming Chang

This inventor holds 21 USPTO granted patents and 7 published patent applications, primarily in Input Devices. Top assignee: Primax Electronics Ltd.. Active years: 2000-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: A-Ming Chang. Retrieved from https://idiyas.com/inventor/a-ming-chang

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

USPTO Granted Patents = 21 

% Patents Active = 52.4

Average Co-Inventor Count = 1.7

ph-index = 3

Forward Citations = 39(Granted Patents)


Location History:

  • Lu-Chou, TW (2000 - 2001)
  • Taipei, TW (2010 - 2020)

Company Filing History:


Years Active: 2000-2020

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Areas of Expertise:
Luminous Scroll Module
Scroll Module
Adjustable Moving Resolution
Joystick-Type Mouse
Touch Pen
Passive Touch Pen
Touch Input Device
Retractable Cable Mouse
Sliding Mechanism
Wireless Mouse
Indicating Lamp
Computer Joystick
21 patents (USPTO):Explore Patents

Title: Innovations by A-Ming Chang: A Visionary Inventor from Taipei

Introduction: A-Ming Chang is an influential inventor based in Taipei, Taiwan, recognized for his significant contributions to the field of technology. With a total of 21 patents to his name, Chang has demonstrated a remarkable ability to innovate and improve upon existing technologies.

Latest Patents: Among his latest inventions are the Luminous Scroll Module and the Scroll Module, both of which are designed for use in computer mice. The Luminous Scroll Module features a unique construction that includes a scroll, an inner wheel, and a luminous module, allowing for a captivating light beam to enhance user experience. The Scroll Module incorporates similar innovations, focusing on light penetrability to facilitate smoother interaction. These inventions reflect Chang's commitment to combining functionality with aesthetics.

Career Highlights: Chang currently works at Primax Electronics Ltd., a company known for its commitment to quality and innovation in electronic components. His role allows him to focus on developing cutting-edge technologies that have been instrumental in shaping modern computing interfaces.

Collaborations: Throughout his career, Chang has had the opportunity to collaborate with notable coworkers, including Ying-Che Tseng and Shi-Jie Zhang. These collaborations have enhanced the development of his patents and contributed to a dynamic exchange of ideas and expertise within the team.

Conclusion: A-Ming Chang's contributions to the field of technology through his innovative patents underscore his status as a leading inventor. His work at Primax Electronics Ltd. and collaboration with talented colleagues highlight his dedication to pushing the boundaries of what is possible in the realm of electronic devices. As technology continues to evolve, Chang's inventions will undoubtedly play an essential role in shaping future advancements.

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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