Yokohama, Japan

Yoshikazu Doi

This inventor holds 1 USPTO granted patent. Top assignee: Fujitsu Corporation. Active years: 1978.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshikazu Doi. Retrieved from https://idiyas.com/inventor/yoshikazu-doi-ghhd3crx

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


% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 24(Granted Patents)


Company Filing History:


Years Active: 1978

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1 patent (USPTO):Explore Patents

Title: The Innovations of Yoshikazu Doi

Introduction

Yoshikazu Doi is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of microwave technology. His work primarily focuses on the development of advanced signal amplifiers.

Latest Patents

Doi holds a patent for a microwave signal amplifier. This innovative device comprises a transistor with input and output terminals. It further includes input and output matching circuits connected to these terminals, along with corresponding bias supply circuits. The input and output matching circuits are implemented using high pass filters, while the bias supply circuits utilize low pass filters. Each of these filters incorporates capacitors and inductors connected to the transistor, with the low pass filters also featuring termination resistors. This design enhances the performance and efficiency of microwave signal amplification.

Career Highlights

Yoshikazu Doi is currently employed at Fujitsu Corporation, where he continues to push the boundaries of microwave technology. His expertise and innovative mindset have made him a valuable asset to the company. Doi's work has not only advanced the technology but has also contributed to the overall growth of the industry.

Collaborations

Doi has collaborated with esteemed colleagues such as Nagahisa Furutani and Kazuo Takahara. Their combined efforts have led to significant advancements in their respective fields.

Conclusion

Yoshikazu Doi's contributions to microwave technology through his innovative patent demonstrate his expertise and commitment to advancing the field. His work at Fujitsu Corporation and collaborations with other professionals highlight his importance in the industry.

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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