Tokyo, Japan

Kazuhiro Usuki

This inventor holds 2 USPTO granted patents and 2 published patent applications and 1 EPO patent. Top assignees: Tokyo Institute of Technology, Toshiba Mitsubishi-Electric Industrial Systems Corporation. Active years: 2012-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuhiro Usuki. Retrieved from https://idiyas.com/inventor/kazuhiro-usuki

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

USPTO Granted Patents = 2 

% Patents Active = 50.0

 

Average Co-Inventor Count = 2.0

ph-index = 1

Forward Citations = 6(Granted Patents)


Location History:

  • Tokyo, JP (2012)
  • Chuo, JP (2019)

Company Filing History:


Years Active: 2012-2019

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2 patents (USPTO):Explore Patents

Title: Kazuhiro Usuki: Innovator in Power Conversion Technology

Introduction

Kazuhiro Usuki is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of power conversion technology, holding a total of 2 patents. His work focuses on innovative control devices that enhance the efficiency and functionality of power converters.

Latest Patents

Usuki's latest patents include a control device for a power conversion device and an AC/DC power converter using a magnetic energy recovery switch. The control device of a power converter features first and second switching circuits that convert AC power from an AC power supply into DC power. This DC power is then supplied to a DC circuit. The device includes first converter arms connected in series in the first switching circuit and second converter arms in the second switching circuit. Additionally, it incorporates first and second control circuits that manage gate pulses for each arm, along with power interruption compensation circuits that ensure continuous operation during power interruptions.

The AC/DC power converter is designed to charge a secondary battery from an AC power supply while also converting power from the secondary battery back to AC voltage. It utilizes a single-phase bridge structure with reverse-conductive type semiconductor switches and a capacitor connected to the DC terminals. This innovative design allows for AC/DC reversible power conversion through precise control of the gate phase of the switches.

Career Highlights

Kazuhiro Usuki has worked with notable organizations such as Toshiba Mitsubishi-Electric Industrial Systems Corporation and the Tokyo Institute of Technology. His experience in these institutions has greatly influenced his research and development in power conversion technologies.

Collaborations

Usuki has collaborated with esteemed colleagues, including Tomohisa Ohkami and Ryuichi Shimada. Their joint efforts have contributed to advancements in the field of power electronics.

Conclusion

Kazuhiro Usuki's innovative work in power conversion technology has established him as a key figure in the industry. His patents reflect a commitment to enhancing the efficiency and effectiveness of power systems. His contributions continue to influence the future of power conversion technologies.

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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