Noriaki Sumisha

Title: Noriaki Sumisha: Innovator in Electromagnetic Valve Technology

Introduction

Noriaki Sumisha is a prominent inventor based in Utsunomiya, Japan. He has made significant contributions to the field of electromagnetic valve technology, holding a total of 2 patents. His work focuses on enhancing the efficiency and performance of fuel injection systems in internal combustion engines.

Latest Patents

Sumisha's latest patents include an electromagnetic valve driving device and an electromagnetic valve drive device. The electromagnetic valve driving device is designed to control the energization period of a solenoid coil in a fuel injection valve. This innovation allows the fuel injection valve to inject fuel multiple times during a single combustion cycle. The device features a storage unit that holds a correction amount map, which indicates the relationship between the energization pause period and the correction amount for the later-half energization period. Additionally, it includes an energization period correction unit and an energization controller that optimizes the solenoid coil's performance.

The electromagnetic valve drive device, on the other hand, drives a fuel injection valve equipped with a solenoid coil. It comprises a drive unit, an energization control unit, a processing unit, and an estimation unit. The processing unit determines the current value arrival time, while the estimation unit predicts the valve opening start time based on this data. These innovations contribute to improved fuel injection accuracy and engine performance.

Career Highlights

Noriaki Sumisha is currently employed at Hitachi Astemo Ltd., where he continues to develop cutting-edge technologies in the automotive sector. His expertise in electromagnetic systems has positioned him as a key player in the advancement of fuel injection technologies.

Collaborations

Throughout his career, Sumisha has collaborated with talented individuals such as Daichi Kawakami and Kyohei Matsumoto. These partnerships have fostered innovation and contributed to the successful development of his patented technologies.

Conclusion

Noriaki Sumisha's contributions to electromagnetic valve technology have significantly impacted the automotive industry. His innovative patents and collaborative efforts continue to drive advancements in fuel injection systems, showcasing his dedication to engineering excellence.