Tokyo, Japan

Keiichi Tomizawa

This inventor holds 16 USPTO granted patents and 5 published patent applications and 12 EPO patents, primarily in Insulated Wire Technology. Top assignees: Furukawa Magnet Wire Co., Ltd., The Furukawa Electric Co., Ltd., Essex Furukawa Magnet Wire Japan Co., Ltd.. Active years: 2015-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiichi Tomizawa. Retrieved from https://idiyas.com/inventor/keiichi-tomizawa

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

Calculating rank
USPTO Granted Patents = 16 

% Patents Active = 100.0

 

Average Co-Inventor Count = 3.5

ph-index = 3

Forward Citations = 29(Granted Patents)


Company Filing History:


Years Active: 2015-2025

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Areas of Expertise:
Insulated Wire
Electrical Equipment
Coil
Manufacturing Method
Surge Resistance
Segmented Conductor
Transformer
Enamel Resin
Film Delamination
Bubbles Layer
16 patents (USPTO):Explore Patents

Title: Keiichi Tomizawa: Innovator in Insulated Wire Technology

Introduction

Keiichi Tomizawa, an esteemed inventor based in Tokyo, Japan, has made significant contributions to the field of electrical engineering. With an impressive portfolio of 16 patents, Tomizawa has focused on innovations in insulated wire, coil, and electrical or electronic equipment, showcasing his dedication to enhancing technological efficiency and safety.

Latest Patents

Among his latest patents, Tomizawa has developed an insulated wire that features a conductor surrounded by an insulating film. This film is engineered to meet specific criteria regarding relative permittivity, ensuring optimal performance under various atmospheric conditions. Another noteworthy patent involves an insulated wire with a unique combination of insulating layers, utilizing a thermosetting resin A and a lower-ranked resin B in the tribo-electric series for improved functionality.

Career Highlights

Throughout his career, Keiichi Tomizawa has held prestigious positions at notable companies, including The Furukawa Electric Co., Ltd. and Furukawa Magnet Wire Co., Ltd. His experience in these organizations has contributed to his inventive work in creating advanced wire insulation technologies, making a commendable impact in the industry.

Collaborations

Tomizawa has collaborated with prominent individuals like Daisuke Muto and Hideo Fukuda. These partnerships have fostered a creative and innovative environment that has led to breakthroughs in electrical components, reflecting the synergy of expertise and collaborative efforts in engineering.

Conclusion

Keiichi Tomizawa stands out as a remarkable inventor, whose work on insulated wire and electronic equipment continues to drive advancements in electrical engineering. His contributions, characterized by a keen understanding of materials and innovative design, have positioned him as a key figure in the development of safer and more efficient electrical 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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