Hamamatsu, Japan

Tomohisa Okamoto

This inventor holds 4 USPTO granted patents and 3 published patent applications, plus 1 CIPO patent and 1 EPO patent. Top assignees: Asmo Co., Ltd., Denso Corporation. Active years: 2013-2019.

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

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

USPTO Granted Patents = 4 

% Patents Active = 25.0


 

Average Co-Inventor Count = 2.0

ph-index = 2

Forward Citations = 5(Granted Patents)


Location History:

  • Kosai, JP (2013 - 2016)
  • Hamamatsu, JP (2018 - 2019)

Company Filing History:


Years Active: 2013-2019

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4 patents (USPTO):Explore Patents

Title: Tomohisa Okamoto: Innovator in Armature Technology

Introduction

Tomohisa Okamoto is a notable inventor based in Hamamatsu, Japan. He has made significant contributions to the field of electrical engineering, particularly in the design and functionality of armatures in DC motors. With a total of 4 patents to his name, Okamoto's work has had a lasting impact on motor technology.

Latest Patents

Okamoto's latest patents include innovative designs for armatures, methods for winding armature coils, and advancements in DC motor technology. His armature design features an armature core, teeth, a commutator, concentrated winding wires, and distributed winding wires. Each tooth includes a first and second branch portion, enhancing the efficiency of the motor. The commutator segments are equipped with risers, which play a crucial role in the winding process. The design allows for the start and terminal ends of the concentrated and distributed winding wires to be pulled out in specific directions, optimizing the conductor arrangement. This innovative approach ensures that the conductors between the winding wires are effectively managed, leading to improved motor performance.

Career Highlights

Throughout his career, Tomohisa Okamoto has worked with prominent companies such as Denso Corporation and Asmo Co., Ltd. His experience in these organizations has contributed to his expertise in motor technology and innovation.

Collaborations

Okamoto has collaborated with notable coworkers, including Takehiko Ohshita and Akihiko Seki. Their combined efforts have further advanced the field of electrical engineering and motor design.

Conclusion

Tomohisa Okamoto's contributions to armature technology and DC motors demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to enhancing motor efficiency and functionality, solidifying his place as a key figure in the field of electrical engineering.

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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