Matsumoto, Japan

Hong-fei Lu

This inventor holds 20 USPTO granted patents and 4 published patent applications, primarily in Semiconductor Devices. Top assignees: Fuji Electric Co., Ltd., Fuji Electric Systems Co. Ltd., Fuji Electric., Ltd.. Active years: 2011-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hong-fei Lu. Retrieved from https://idiyas.com/inventor/hong-fei-lu

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

Calculating rank
USPTO Granted Patents = 20 

% Patents Active = 40.0

Average Co-Inventor Count = 1.2

ph-index = 4

Forward Citations = 56(Granted Patents)


Location History:

  • Matsumoto, JP (2011 - 2016)
  • Hino, JP (2018 - 2022)

Company Filing History:


Years Active: 2011-2026

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Areas of Expertise:
Insulated Gate Bipolar Transistor
Power Conversion Apparatus
Semiconductor Modules
Manufacturing Method
Series-Connected Switches
Low-Lifetime Region
SOI Trench Lateral IGBT
Semiconductor Device
20 patents (USPTO):Explore Patents

Title: The Innovations of Hong-fei Lu

Introduction

Hong-fei Lu is a prominent inventor based in Matsumoto, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 19 patents. His work focuses on advancements in power conversion apparatus and insulated gate bipolar transistors (IGBTs).

Latest Patents

One of his latest patents involves an insulated gate bipolar transistor (IGBT) that features an n-type drift layer and an n-type accumulation layer with a higher impurity concentration. This design includes a base layer on the accumulation layer, a gate electrode embedded in a striped gate trench, and a dummy electrode in a dummy trench. The base layer consists of a p-type active base region and a p-type floating base region arranged alternately, along with an n-type base isolation region. Another notable patent is for a power conversion apparatus that includes multiple semiconductor modules, each with series-connected semiconductor switches. This apparatus is designed to balance parasitic inductance in the current paths, enhancing efficiency in power conversion.

Career Highlights

Hong-fei Lu has worked with notable companies such as Fuji Electric Co., Ltd. and Fuji Electric Systems Co., Ltd. His experience in these organizations has allowed him to develop innovative technologies that have impacted the semiconductor industry.

Collaborations

He has collaborated with esteemed colleagues, including Toru Muramatsu and Haruo Nakazawa, contributing to various projects that have advanced semiconductor technology.

Conclusion

Hong-fei Lu's contributions to the field of semiconductor technology through his patents and collaborations highlight his role as a leading inventor. His work continues to influence advancements in power conversion and IGBT 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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