Tokyo, Japan

Yoshihiko Onishi

This inventor holds 74 USPTO granted patents and 2 published patent applications and 5 EPO patents, primarily in Rotary Electric Machines (CPC class H02K). Top assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Corporation. Active years: 1998-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshihiko Onishi. Retrieved from https://idiyas.com/inventor/yoshihiko-onishi

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

USPTO Granted Patents = 74 

% Patents Active = 48.6

 

Average Co-Inventor Count = 2.4

ph-index = 9

Forward Citations = 335(Granted Patents)

Forward Citations (Not Self Cited) = 311(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Chiyoda-ku, JP (2010 - 2016)
  • Tokyo, JP (1998 - 2024)

Company Filing History:


Years Active: 1998-2026

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Areas of Expertise:
Rotary Electric Machine
Electric Power Steering
Fuel Injection Valve
Rotation Angle Detection
Electromagnetic Valve
High-Pressure Fuel Supply
Proportional Solenoid Valve
Intake Air Control
Fuel Supply Apparatus
Electric Motor
Manufacturing Method
Circuit Connection Device
74 patents (USPTO):Explore Patents

Title: Innovator Spotlight: Yoshihiko Onishi

Introduction

Yoshihiko Onishi, a prolific inventor based in Tokyo, Japan, has made significant contributions to the field of electrical engineering. With an impressive total of 68 patents, he has showcased a relentless pursuit of innovation and problem-solving through his groundbreaking inventions.

Latest Patents

Onishi's latest patents include innovative designs for a rotary electric machine and an electric power steering apparatus. The rotary electric machine is designed to prevent capacitor explosions even under heat generation, incorporating a unique heat sink and an explosion-proof valve mechanism. Meanwhile, his electric power steering apparatus features a waterproof motor housing and control unit case, along with a respiratory apparatus to manage pressure changes within the motor housing. These inventions not only enhance functionality but also ensure safety and reliability in practical applications.

Career Highlights

Throughout his esteemed career, Onishi has held positions at Mitsubishi Denki Kabushiki Kaisha and Mitsubishi Electric Corporation. His work at these leading companies has allowed him to refine his skills and contribute to a range of advanced technologies, solidifying his reputation as a key player in the electrical engineering sector.

Collaborations

Onishi has collaborated with talented colleagues such as Takuya Uryu and Kazuhisa Kurita. Their collective expertise and teamwork have undoubtedly propelled many of Onishi's projects forward, fostering innovations that meet the demands of modern technology.

Conclusion

Yoshihiko Onishi’s commitment to innovation and excellence has made him an influential figure in the realm of electrical engineering. With numerous patents to his name, he continues to inspire future inventors and engineers to explore new ideas and push the boundaries of 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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