Kanagawa, Japan

Yoji Kato

This inventor holds 4 USPTO granted patents. Top assignee: Sony Corporation. Active years: 1987-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoji Kato. Retrieved from https://idiyas.com/inventor/yoji-kato-dy80i1rq

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 = 2.2

ph-index = 3

Forward Citations = 22(Granted Patents)


Company Filing History:


Years Active: 1987-1988

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4 patents (USPTO):Explore Patents

Title: Yoji Kato: Innovator in Semiconductor Technology

Introduction

Yoji Kato is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 4 patents. His work focuses on advanced transistor designs that enhance performance and efficiency.

Latest Patents

Kato's latest patents include innovative designs for bipolar transistors and heterojunction field effect transistors. The bipolar transistor patent describes a semiconductor device that utilizes two-dimensional electron gas layers as current paths. This design allows for improved bipolar transistor operation by forming a virtual base region through majority carriers injected from a semiconductor region. The heterojunction field effect transistor patent outlines a structure with multiple semiconductor layers, where the current flow is controlled by a gate voltage. This design enables a reduction in gate length and an increase in current density compared to conventional devices.

Career Highlights

Yoji Kato is currently associated with Sony Corporation, where he continues to push the boundaries of semiconductor innovation. His work has been instrumental in developing technologies that are crucial for modern electronic devices.

Collaborations

Kato has collaborated with notable colleagues, including Masaru Wada and Hidemi Takakuwa. Their combined expertise has contributed to the advancement of semiconductor technologies.

Conclusion

Yoji Kato's contributions to semiconductor technology through his innovative patents have positioned him as a key figure in the industry. His work continues to influence the development of advanced electronic devices.

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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