Tokyo, Japan

Aya Tooyama

This inventor holds 2 USPTO granted patents. Top assignees: Hitachi Astemo Ltd., Hitachi, Ltd.. Active years: 2025-2026.

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

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


% Patents Active = 50.0

Average Co-Inventor Count = 3.0

ph-index = 1


Company Filing History:


Years Active: 2025-2026

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2 patents (USPTO):Explore Patents

Title: Aya Tooyama: Innovator in Noise Filter Technology

Introduction

Aya Tooyama is a prominent inventor based in Tokyo, Japan. She has made significant contributions to the field of electrical engineering, particularly in the development of noise filter technology. Her innovative approach has led to the creation of a unique filter device that enhances the performance of power conversion systems.

Latest Patents

Tooyama holds a patent for a π-type noise filter that is designed to be disposed within a metal case. This filter includes first and second partitions with a gap between them, which are interposed between stages of the filter. The device features a magnetic core that surrounds direct current wiring, along with capacitors that are strategically placed to optimize performance. This invention is crucial for improving the efficiency of power conversion devices.

Career Highlights

Aya Tooyama is currently employed at Hitachi Astemo Ltd., where she continues to innovate and develop advanced technologies. Her work has garnered attention for its practical applications in various electronic systems. With a focus on enhancing device performance, Tooyama has established herself as a key figure in her field.

Collaborations

Tooyama collaborates with talented colleagues, including Jia Li and Hirofumi Shimizu. These partnerships foster a creative environment that encourages the exchange of ideas and the development of cutting-edge technologies.

Conclusion

Aya Tooyama's contributions to noise filter technology exemplify her dedication to innovation and excellence in engineering. Her work not only advances the field but also sets a standard for future developments in power conversion systems.

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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