Naohumi Yamamura

Title: Naohumi Yamamura: Innovator in Plasma Jet Ignition Technology

Introduction

Naohumi Yamamura is a notable inventor based in Nagoya, Japan. He has made significant contributions to the field of ignition technology, particularly with his innovative plasma jet ignition plug. His work has implications for improving the efficiency and performance of ignition systems.

Latest Patents

Yamamura holds a patent for a plasma jet ignition plug. This invention includes a wire-wound resistor designed to restrain the radiation of noise while allowing the application of a sufficiently large current for generating plasma at the spark discharge gap during ignition. The wire-wound resistor has an inductance ranging from 1 µH to 100 µH and a resistance of 1Ω or less. It is strategically placed on at least one of the center electrode and the ground electrode. This design effectively reduces noise generated by stray capacitance present in the ignition plug.

Career Highlights

Naohumi Yamamura is currently employed at NGK Spark Plug Company, Limited, where he continues to develop innovative solutions in ignition technology. His work has been instrumental in advancing the performance of spark plugs, contributing to the automotive and engineering industries.

Collaborations

Yamamura has collaborated with notable colleagues, including Daisuke Nakano and Yoshikuni Sato. Their combined expertise has fostered a productive environment for innovation and development within their field.

Conclusion

Naohumi Yamamura's contributions to plasma jet ignition technology exemplify the impact of innovative thinking in engineering. His patent and ongoing work at NGK Spark Plug Company, Limited, highlight the importance of advancements in ignition systems for various applications.