TOKYO, Japan

Sei Fukushima

This inventor holds 1 USPTO granted patent and 2 published patent applications. Top assignees: Sony Group Corporation, Sony Semiconductor Solutions Corporation. Active years: 2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sei Fukushima. Retrieved from https://idiyas.com/inventor/sei-fukushima-pwllv0ao

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

Calculating rank
USPTO Granted Patents = 1 

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1


Company Filing History:


Years Active: 2025

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1 patent (USPTO):Explore Patents

Title: The Innovative Contributions of Sei Fukushima

Introduction

Sei Fukushima is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology. His work has led to the development of a unique semiconductor device that showcases his innovative approach to engineering.

Latest Patents

Fukushima holds a patent for a semiconductor device that includes a barrier layer, a channel layer, a regrowth layer, a vacancy generation region, and a source electrode or a drain electrode. The barrier layer consists of a first nitride semiconductor, while the channel layer is made of a second nitride semiconductor and is bonded to the barrier layer at a first surface. The regrowth layer features an n-type nitride semiconductor and is positioned in a region dug deeper than the interface between the barrier layer and the channel layer from a second surface of the barrier layer. The vacancy generation region contains a nitrogen-capturing element and is located in a region of the regrowth layer that is shallower than the interface between the barrier layer and the channel layer. The source electrode or the drain electrode is placed on the regrowth layer.

Career Highlights

Throughout his career, Sei Fukushima has worked with prominent companies, including Sony Semiconductor Solutions Corporation and Sony Group Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in semiconductor technology.

Collaborations

Fukushima has collaborated with talented individuals such as Yuya Kanitani and Masashi Yanagita. These partnerships have fostered an environment of innovation and creativity, leading to the development of advanced technologies.

Conclusion

Sei Fukushima's contributions to semiconductor technology exemplify his innovative spirit and dedication to engineering. His patent and collaborations highlight the importance of teamwork in achieving technological 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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