Tetsuo Matsumura

Title: **Innovations by Tetsuo Matsumura**

Introduction

Tetsuo Matsumura, an esteemed inventor based in Hitachinaka, Japan, has made significant contributions to the field of fuel injection technology. With a remarkable portfolio of 25 patents, his work primarily focuses on optimizing fuel efficiency and reducing emissions in internal combustion engines.

Latest Patents

Matsumura's latest patents showcase his commitment to innovation. One of them is a **Drive Circuit for Electromagnetic Fuel-Injection Valve**. This drive circuit is designed to vary the application sequence of a drive voltage supplied from a step-up power supply, enabling the fuel-injection valve to conduct multiple injections within a single stroke of an internal combustion engine. Notably, the circuit minimizes the power consumption from the step-up power supply during the first injection compared to the second and subsequent injections.

Another significant patent is the **Control Device for In-Cylinder Fuel Injection Type Internal Combustion Engine**. This invention focuses on reducing the amount of fuel that adheres to the piston crown surface. By conducting multiple injections in one cycle, the device advances the timing of the first injection based on the exhaust gas recirculation (EGR) amount. This advancement reduces exhaust particle emissions during operation.

Career Highlights

Throughout his career, Tetsuo Matsumura has worked with renowned companies such as Hitachi, Ltd. and Hitachi Automotive Systems, Ltd. His expertise in fuel injection technology has not only garnered numerous patents but also contributed to advancements in the automotive industry.

Collaborations

Matsumura has collaborated with esteemed colleagues, including Kinya Fujimoto and Naoyuki Ozaki. These partnerships have played a crucial role in the development of innovative solutions in engine technology, further enhancing the efficacy of fuel injection systems.

Conclusion

Tetsuo Matsumura exemplifies the spirit of innovation in the automotive sector. His 25 patents, particularly in fuel injection technology, underscore his dedication to improving engine efficiency and reducing environmental impact. Through his work and collaborations, Matsumura continues to pave the way for advancements in internal combustion engine technologies.