Kohei Umehara

Title: Innovations by Kohei Umehara

Introduction

Kohei Umehara is a notable inventor based in Susono, Japan. He has made significant contributions to the field of internal combustion engine technology. With a total of two patents to his name, Umehara's work focuses on enhancing engine efficiency and control.

Latest Patents

Umehara's latest patents include an internal combustion engine control device and a control system for a Miller cycle engine. The internal combustion engine control device features a fuel injection valve, a cylinder for fuel combustion, and an exhaust passage with a catalyst. It utilizes upstream and downstream air-fuel ratio sensors to optimize the warm-up completion temperature based on detection value differences. The control system for the Miller cycle engine includes an electronic control unit (ECU) that manages the timing of the intake valve closure to improve engine performance during different operating modes.

Career Highlights

Umehara is currently employed at Toyota Jidosha Kabushiki Kaisha, where he applies his expertise in engine technology. His innovative approaches have contributed to advancements in automotive engineering, particularly in fuel efficiency and emissions control.

Collaborations

Umehara has collaborated with notable colleagues such as Shintaro Hotta and Shinji Sadakane. Their combined efforts in research and development have furthered the progress of engine technology at Toyota.

Conclusion

Kohei Umehara's contributions to internal combustion engine technology exemplify the importance of innovation in the automotive industry. His patents reflect a commitment to improving engine efficiency and performance.