Shanghai, China

Haijun Zhang

This inventor holds 7 USPTO granted patents and 7 published patent applications and 1 EPO patent. Top assignees: Shanghai Awinic Technology Co., Ltd, Shanghai Awinic Technology Co., Ltd.. Active years: 2021-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Haijun Zhang. Retrieved from https://idiyas.com/inventor/haijun-zhang-09urib5u

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

Calculating rank
USPTO Granted Patents = 7 

% Patents Active = 85.7

 

Average Co-Inventor Count = 4.7

ph-index = 1

Forward Citations = 3(Granted Patents)


Company Filing History:


Years Active: 2021-2026

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7 patents (USPTO):Explore Patents

Title: Haijun Zhang: Innovator in Digital Audio Technology

Introduction

Haijun Zhang is a prominent inventor based in Shanghai, China, known for his contributions to digital audio technology. With a total of six patents to his name, Zhang has made significant advancements in the field, particularly in audio amplification and speaker protection.

Latest Patents

Zhang's latest patents include a digital audio power amplifier and a power amplifier loop. The digital audio power amplifier is designed to ensure the normal operation of the amplifier, incorporating an operational amplifier, capacitors, resistors, and a noise control unit. The power amplifier loop features a unique configuration that optimizes performance and minimizes noise. Another notable patent focuses on a current detection circuit, chip, and method for speaker protection. This innovation utilizes current mirror technology to sample the current flowing through the speaker, converting it into voltage signals for further analysis.

Career Highlights

Haijun Zhang is currently employed at Shanghai Awinic Technology Co., Ltd., where he continues to develop cutting-edge audio technologies. His work has positioned him as a key figure in the industry, contributing to advancements that enhance audio quality and speaker safety.

Collaborations

Zhang collaborates with talented individuals such as Liming Du and Zhifei Yang, who share his passion for innovation in audio technology. Together, they work on projects that push the boundaries of what is possible in digital audio.

Conclusion

Haijun Zhang's contributions to digital audio technology through his patents and collaborations highlight his role as an influential inventor in the field. His work continues to shape the future of audio amplification and speaker protection.

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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