Tokyo, Japan

Toshio Tsubota

This inventor holds 1 USPTO granted patent. Top assignee: Nec Corporation. Active years: 1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshio Tsubota. Retrieved from https://idiyas.com/inventor/toshio-tsubota-24f6rr2o

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 = 11(Granted Patents)


Company Filing History:


Years Active: 1999

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1 patent (USPTO):Explore Patents

Title: Innovations of Toshio Tsubota

Introduction

Toshio Tsubota is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of motor technology. His innovative approach has led to the development of a unique motor drive apparatus.

Latest Patents

Tsubota holds a patent for a motor drive apparatus and motor driving method capable of simply alternating a drive current and a regenerative current during a PWM (pulse width modulation) time period. The regenerative current is produced by electromagnetic induction of an armature and flows in the opposite direction to the drive current. This innovative method improves the speed-reduction following characteristic of the motor. By varying the duty factor, the lengths of time during which the drive current and the regenerative current flow can be controlled, allowing for precise speed control of the motor. He has 1 patent to his name.

Career Highlights

Tsubota is associated with NEC Corporation, where he has been able to apply his inventive skills. His work has contributed to advancements in motor technology, enhancing efficiency and performance.

Collaborations

Some of his notable coworkers include Makoto Murase and Kazunari Mizuguchi. Their collaborative efforts have furthered the development of innovative technologies in their field.

Conclusion

Toshio Tsubota's contributions to motor technology exemplify the spirit of innovation. His patent reflects a significant advancement in motor drive methods, showcasing his expertise and dedication to improving technology.

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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