Tokyo, Japan

Hideki Hagari

USPTO Granted Patents = 58 

 

Average Co-Inventor Count = 1.6

ph-index = 7

Forward Citations = 208(Granted Patents)

Forward Citations (Not Self Cited) = 181(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Hyogo, JP (2018)
  • Chiyoda-ku, JP (2010 - 2019)
  • Tokyo, JP (2003 - 2022)

Company Filing History:


Years Active: 2003-2022

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Areas of Expertise:
Internal Combustion Engine
Supercharger Control
Injector Control Device
EGR Flow Rate Estimation
Cylinder Intake Air Estimation
Turbocharger Control
Knock Control Apparatus
Pre-Ignition Control
Engine Control Device
Control Apparatus
Control Method
58 patents (USPTO):Explore Patents

Title: **Hideki Hagari: Innovator in Internal Combustion Engine Control Systems**

Introduction

Hideki Hagari, based in Tokyo, Japan, is a prolific inventor known for his substantial contributions to the field of internal combustion engines. With an impressive portfolio of 58 patents, he has made significant advancements that enhance engine performance and efficiency.

Latest Patents

Among his latest innovations, Hagari has developed a controller and control method for internal combustion engines. This technology aims to calculate a target value of the controlled variable that achieves the desired torque while minimizing calculation demands through a torque characteristics function. His inventions include methods for determining ignition timings based on corresponding torques, resulting in optimized ignition timing that corresponds to target torque. Furthermore, his patents provide methods for automatic adaptation of optimal ignition timing and control values for combustion operation mechanisms. These advancements significantly improve engine performance by ensuring output torque aligns closely with actual internal cylinder pressure measurements.

Career Highlights

Hagari has accrued valuable experience with leading companies in the industry. He has worked at Mitsubishi Electric Corporation and Mitsubishi Denki Kabushiki Kaisha, where he applied his expertise in engine control systems to develop innovative solutions that meet modern demands for efficiency and performance.

Collaborations

Throughout his career, Hagari has collaborated with notable professionals such as Tomokazu Makino and Michihisa Yokono. Their partnerships have fostered an environment for creativity and innovation, contributing to the success of numerous projects and patents in the field of combustion engine technology.

Conclusion

Hideki Hagari continues to play a vital role in transforming the landscape of internal combustion engine technology. His extensive patent portfolio not only showcases his innovative capabilities but also underscores the importance of continuous research and development in advancing engineering solutions that drive the automotive industry forward.

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