Tokyo, Japan

Haijiao Han

This inventor holds 1 USPTO granted patent. Top assignee: Foster Electric Company, Limited. Active years: 2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Haijiao Han. Retrieved from https://idiyas.com/inventor/haijiao-han-xwcuf680

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 1


Company Filing History:


Years Active: 2025

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1 patent (USPTO):Explore Patents

Title: Haijiao Han - Innovator in Speaker Technology

Introduction

Haijiao Han is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of audio technology, particularly in speaker design. His innovative approach has led to the development of a unique speaker magnetic circuit that enhances sound quality and performance.

Latest Patents

Haijiao Han holds 1 patent for his invention titled "Speaker magnetic circuit and speaker driver." This patent describes a speaker magnetic circuit that includes a yoke cover formed from a tubular magnetic body. The design features a diaphragm that is attachable to one end of the yoke cover, a magnet positioned inside the yoke cover, and a volume adjusting member made from a tubular non-magnetic body. This member is strategically placed between the yoke cover and the magnet, incorporating a first groove that extends in the axial direction. Additionally, a yoke base made from a magnetic body is provided at the opposite end of the magnet, featuring a second groove that corresponds to the first groove. Together, these grooves create a duct portion that connects spaces within the yoke cover, optimizing sound delivery.

Career Highlights

Haijiao Han is currently employed at Foster Electric Company, Limited, where he continues to innovate in the audio technology sector. His work has been instrumental in advancing speaker design and functionality, contributing to the company's reputation for high-quality audio products.

Collaborations

One of his notable collaborators is Yusuke Muta, with whom he has worked closely on various projects related to speaker technology. Their combined expertise has led to advancements in the field, enhancing the overall performance of audio devices.

Conclusion

Haijiao Han's contributions to speaker technology exemplify the impact of innovative thinking in the audio industry. His patent for the speaker magnetic circuit showcases his commitment to improving sound quality and performance. Through his work at Foster Electric Company, Limited, he continues to push the boundaries of audio 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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