Hitachi, Japan

Yoshihiro Sukegawa

USPTO Granted Patents = 56 

 

Average Co-Inventor Count = 3.8

ph-index = 11

Forward Citations = 484(Granted Patents)

Forward Citations (Not Self Cited) = 474(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Hitachi, JP (2001 - 2015)
  • Tokyo, JP (2007 - 2024)

Company Filing History:


Years Active: 2001-2025

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Areas of Expertise:
Internal Combustion Engine
Hybrid Vehicle Control
Fuel Injection Control
Direct Injection Engine
Spark Ignition Engine
EGR Control Valve
Thermal Flow Meter
Cylinder Injection Engine
Power Train System
Hydrogen Combustion
Variable Valve Control
Fluid Mixing Apparatus
56 patents (USPTO):Explore Patents

Title: Innovations by Yoshihiro Sukegawa: Pioneering Hybrid Vehicle Technology

Introduction

Yoshihiro Sukegawa, based in Hitachi, Japan, is a distinguished inventor with a remarkable portfolio of 55 patents. His innovative contributions primarily focus on hybrid vehicle control systems and combustion technology, reflecting a commitment to enhancing vehicle performance and environmental sustainability.

Latest Patents

Among his latest patents is a groundbreaking hybrid vehicle control device. This device excels in minimizing engine knocking while ensuring quiet operation. It incorporates a control unit that calculates a knock index value indicating the engine's knock degree at varying operational states. By dynamically adjusting the engine rotational speed and torque based on this index, the control device optimizes overall vehicle efficiency.

Another notable invention is the electronic control device for mixed hydrogen combustion. This advanced system includes a combustion timing detection unit and an abnormal state detection unit. The latter identifies abnormalities in the engine by assessing combustion timing and the hydrogen supply ratio. By determining the appropriate control mode based on these factors, it efficiently regulates the hydrogen supply, leading to improved engine performance and reduced emissions.

Career Highlights

Yoshihiro has had a fruitful career, working at prominent companies such as Hitachi, Ltd. and Hitachi Automotive Systems, Ltd. His expertise in developing innovative automotive technologies signifies his vital role in advancing hybrid and alternative fuel vehicles.

Collaborations

Throughout his career, Sukegawa has collaborated with notable colleagues, including Noboru Tokuyasu and Yusuke Kihara. Their collective efforts in research and development have fostered significant advancements within the automotive industry, particularly in hybrid vehicle technology.

Conclusion

Yoshihiro Sukegawa's contributions to the field of hybrid vehicle technology and combustion systems demonstrate his dedication to innovation. With each new patent, he continues to pave the way for technological advancements that enhance vehicle performance while promoting sustainability. His work exemplifies the spirit of invention that drives progress in the automotive industry.

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