Ichikawa, Japan

Tsutomu Osawa

This inventor holds 1 USPTO granted patent. Top assignee: Nippon Ferrofluidics Corporation. Active years: 1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tsutomu Osawa. Retrieved from https://idiyas.com/inventor/tsutomu-osawa-i7c5usg5

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 = 4.0

ph-index = 1

Forward Citations = 38(Granted Patents)


Company Filing History:


Years Active: 1989

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1 patent (USPTO):Explore Patents

Title: The Innovative Mind of Tsutomu Osawa

Introduction

Tsutomu Osawa is a notable inventor based in Ichikawa, Japan. He has made significant contributions to the field of electric motors, showcasing his expertise through his innovative designs and patents. His work reflects a deep understanding of electrical engineering and motor technology.

Latest Patents

One of Tsutomu Osawa's key inventions is the variant-pole electric motor. This compact, high-torque electric motor features a unique design where one motor element, either the stator or rotor, has magnetic poles with effective magnetic widths that are substantially equal and span equal center angles. The second motor element consists of multiple armature groups, each occupying a phase sector of the motor element, which is formed by dividing the total periphery by a natural number. All armatures within an armature group are connected electrically in series and excited with a current of one phase, either an alternating current phase or an equivalent phase generated by commutator action. Within one pole group, the poles may have equal widths or different widths. This innovative design enhances the efficiency and performance of electric motors.

Career Highlights

Tsutomu Osawa is associated with Nippon Ferrofluidics Corporation, where he continues to develop and refine his inventions. His work at the company has allowed him to explore new technologies and push the boundaries of electric motor design. With a total of 1 patent, he has established himself as a valuable contributor to the field.

Collaborations

Throughout his career, Tsutomu has collaborated with talented individuals such as Isamu Takehara and Akira Yamamura. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Tsutomu Osawa's contributions to electric motor technology exemplify his innovative spirit and dedication to engineering excellence. His work continues to inspire future advancements in the field.

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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