Tokyo, Japan

Hangxian Gao

This inventor holds 2 USPTO granted patents and 2 published patent applications and 1 EPO patent. Top assignee: Hitachi, Ltd.. Active years: 2025-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hangxian Gao. Retrieved from https://idiyas.com/inventor/hangxian-gao

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

USPTO Granted Patents = 2 

% Patents Active = 50.0

 

Average Co-Inventor Count = 4.0

ph-index = 1


Company Filing History:


Years Active: 2025-2026

Loading Chart...
Loading Chart...
2 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Hangxian Gao

Introduction

Hangxian Gao is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of power conversion technology. His innovative work has led to the development of a unique power conversion apparatus that enhances efficiency and performance.

Latest Patents

Hangxian Gao holds a patent for a power conversion apparatus. This apparatus includes a first power semiconductor module, a second power semiconductor module, a control circuit for driving both modules, and liquid-cooling type cooling jackets. Notably, the second power semiconductor module is positioned closer to the upper surface in the gravity direction than the first module. The cooling jackets utilize a refrigerant containing hydrogen molecules and feature a refrigerant flow path between the two semiconductor modules. The control circuit is designed to ensure that the operating time period of the second power semiconductor module is shorter than that of the first module. This innovative design aims to improve the overall efficiency of power conversion systems.

Career Highlights

Hangxian Gao is currently employed at Hitachi, Ltd., a leading company in technology and innovation. His work at Hitachi has allowed him to collaborate with other talented professionals in the field. His contributions have been instrumental in advancing the company's technological capabilities.

Collaborations

Some of Hangxian Gao's notable coworkers include Hiroshi Kamizuma and Tetsuya Kawashima. Their collaborative efforts have further enhanced the development of innovative technologies within their organization.

Conclusion

Hangxian Gao's contributions to power conversion technology exemplify the spirit of innovation. His patent for a power conversion apparatus showcases his commitment to improving efficiency in electrical systems. Through his work at Hitachi, he continues to make a significant impact in the field of 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]
Loading…