Saitama, Japan

Hiroki Arai

This inventor holds 2 USPTO granted patents and 2 published patent applications. Top assignee: Will Semiconductor (Shanghai) Co. Ltd.. Active years: 2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroki Arai. Retrieved from https://idiyas.com/inventor/hiroki-arai-oh1r6u66

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

Calculating rank
USPTO Granted Patents = 2 

Average Co-Inventor Count = 1.0

ph-index = 1


Company Filing History:


Years Active: 2026

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2 patents (USPTO):Explore Patents

Title: Hiroki Arai: Innovator in Semiconductor Technology

Introduction

Hiroki Arai is a prominent inventor based in Saitama, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 2 patents. His work focuses on innovative designs that enhance the performance and efficiency of semiconductor devices.

Latest Patents

Hiroki Arai's latest patents include a semiconductor device with an anode trench and a trench gate type IGBT. The semiconductor device features an anode electrode on the front surface of a semiconductor substrate, a cathode electrode on the back surface, and a unique arrangement of P and N layers. The anode trench extends from the front surface toward the back, incorporating an insulating film and a conductive material connected to the anode electrode. The trench gate type IGBT consists of multiple trenches, including gate and emitter trenches, with a mesa section that enhances its functionality.

Career Highlights

Hiroki Arai is currently employed at Will Semiconductor (Shanghai) Co. Ltd., where he continues to push the boundaries of semiconductor innovation. His expertise in the field has led to advancements that are crucial for modern electronic applications.

Collaborations

Hiroki collaborates with notable colleagues, including Tetsuya Okada and Kikuo Okada. Their combined efforts contribute to the development of cutting-edge technologies in the semiconductor industry.

Conclusion

Hiroki Arai's contributions to semiconductor technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in electronic devices and systems.

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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