Osaka, Japan

Eiji Tooyama

This inventor holds 3 USPTO granted patents and 2 EPO patents. Top assignee: Daikin Industries, Ltd.. Active years: 2016-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Eiji Tooyama. Retrieved from https://idiyas.com/inventor/eiji-tooyama

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 = 3.8

ph-index = 2

Forward Citations = 28(Granted Patents)


Location History:

  • Shiga, JP (2016)
  • Osaka, JP (2017 - 2019)

Company Filing History:


Years Active: 2016-2019

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3 patents (USPTO):Explore Patents

Title: Eiji Tooyama: Innovator in Power Conversion Technology

Introduction

Eiji Tooyama is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of power conversion technology, holding a total of 3 patents. His work focuses on enhancing the efficiency and accuracy of power systems.

Latest Patents

Tooyama's latest patents include a current estimating device and a power conversion device with reduced current deviation. The current estimating device features a voltage detection circuit that utilizes a voltage divider circuit to detect voltages correlating with a power source voltage. The calculation unit within this device estimates the power source current based on the detected voltages and corrects gains to ensure accuracy. The power conversion device, on the other hand, includes a storage system that retains values associated with disturbances affecting current distortion. This device employs a power conversion controller to manage ON/OFF operations, compensating for control variables in relation to the phase angle of the AC power supply voltage.

Career Highlights

Eiji Tooyama is currently employed at Daikin Industries, Ltd., where he continues to innovate in the field of power conversion. His expertise and inventions have contributed to advancements in energy efficiency and system reliability.

Collaborations

Tooyama has collaborated with notable coworkers, including Morimitsu Sekimoto and Takurou Ogawa. Their combined efforts have fostered a creative environment that promotes innovation in power technology.

Conclusion

Eiji Tooyama's contributions to power conversion technology exemplify his commitment to innovation and efficiency. His patents reflect a deep understanding of electrical systems and a dedication to improving energy management.

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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