Funabashi, Japan

Takatsugu Kambara

This inventor holds 3 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1992-1995.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takatsugu Kambara. Retrieved from https://idiyas.com/inventor/takatsugu-kambara

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 = 4.9

ph-index = 3

Forward Citations = 42(Granted Patents)


Company Filing History:


Years Active: 1992-1995

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3 patents (USPTO):Explore Patents

Title: Takatsugu Kambara: Innovator in Inverter Technology

Introduction

Takatsugu Kambara is a notable inventor based in Funabashi, Japan. He has made significant contributions to the field of inverter technology, holding a total of 3 patents. His work focuses on enhancing the efficiency and reliability of inverter apparatuses, which are crucial in various electrical applications.

Latest Patents

Kambara's latest patents include an inverter apparatus equipped with an electric discharge control circuit. This innovation allows for the controlled discharge of electric charge on a d.c. smoothing capacitor after a power source interruption. Another significant patent is an inverter apparatus designed to prevent an overincrease of output frequency. This device utilizes a microcomputer control system to ensure that the output frequency remains within a safe limit, thereby preventing potential damage to the connected ac rotary electric machine.

Career Highlights

Kambara is currently employed at Hitachi, Ltd., where he continues to develop advanced technologies in the field of electrical engineering. His work has been instrumental in improving the performance and safety of inverter systems, making them more reliable for industrial and commercial use.

Collaborations

Throughout his career, Kambara has collaborated with esteemed colleagues such as Satoshi Ibori and Hiroshi Fujii. These partnerships have fostered innovation and have contributed to the successful development of various projects within the company.

Conclusion

Takatsugu Kambara's contributions to inverter technology exemplify his dedication to innovation and engineering excellence. His patents reflect a commitment to enhancing the functionality and safety of electrical systems, making a lasting impact 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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