Yamanashi, Japan

Tomohisa Tsutsumi

This inventor holds 12 USPTO granted patents and 1 published patent application and 1 EPO patent. Top assignee: Fanuc Corporation. Active years: 2011-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tomohisa Tsutsumi. Retrieved from https://idiyas.com/inventor/tomohisa-tsutsumi

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

USPTO Granted Patents = 12 

% Patents Active = 75.0

 

Average Co-Inventor Count = 1.8

ph-index = 2

Forward Citations = 19(Granted Patents)


Location History:

  • Minamitsuru-gun, JP (2012)
  • Yamanashi, JP (2011 - 2018)
  • Yamanashi-ken, JP (2020 - 2021)

Company Filing History:


Years Active: 2011-2025

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12 patents (USPTO):Explore Patents

Title: Tomohisa Tsutsumi: Innovator in Synchronous Motor Technology

Introduction

Tomohisa Tsutsumi is a prominent inventor based in Yamanashi, Japan. He has made significant contributions to the field of synchronous motor technology, holding a total of 12 patents. His innovative work focuses on enhancing the efficiency and control of synchronous motors, which are widely used in various industrial applications.

Latest Patents

Among his latest patents, Tsutsumi has developed a Synchronous Motor Control Device. This device is designed to control the driving of a synchronous motor through sensorless control. It includes a DC excitation instruction generation unit that generates an instruction for supplying fixed excitation current to the motor. Additionally, it features a torque zero equivalence detection unit that detects when the torque generated in the rotor becomes equivalent to zero. Another notable patent is the Magnetic Pole Position Detection Device, which shortens the detection time of the initial magnetic pole position of the rotor. This device utilizes an excitation command unit that excites the synchronous motor while changing the current phase of the excitation current.

Career Highlights

Tsutsumi's career is marked by his dedication to advancing motor control technologies. His work at Fanuc Corporation has positioned him as a key player in the development of innovative solutions for synchronous motors. His patents reflect a deep understanding of motor dynamics and control systems, contributing to the efficiency of industrial machinery.

Collaborations

Throughout his career, Tsutsumi has collaborated with talented individuals such as Yuuki Morita and Takahiro Akiyama. These collaborations have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Tomohisa Tsutsumi's contributions to synchronous motor technology exemplify the spirit of innovation. His patents and collaborative efforts continue to influence the industry, paving the way for future advancements in motor control 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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