Nobuyuki Matsushima

Title: Nobuyuki Matsushima: Innovator in Coil Expander Technology

Introduction

Nobuyuki Matsushima is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of piston ring technology, holding 2 patents that showcase his innovative approach to engineering.

Latest Patents

Matsushima's latest patents include a wire material for a coil expander and a piston ring. The wire material for a coil expander is designed to manufacture a coil expander that minimizes issues such as abnormal wear and a reduction in strength. This wire material is utilized in a combination piston ring, which features a piston ring and a coil expander that presses and urges the piston ring outward. The cross-sectional shape of the wire material is rectangular, and when formed into a coil expander, it features a convex curved outer surface. The piston ring patent describes a piston ring main body with an expander ring on its inner surface. This expander ring consists of two oil expander rings, one housed within the spiral of the other. The design allows for a greater pressing force in high-temperature conditions compared to low-temperature states, enhancing the performance of the piston ring.

Career Highlights

Throughout his career, Matsushima has worked with prominent companies such as Nippon Piston Ring Co., Ltd. and Toyota Motor Corporation. His experience in these organizations has contributed to his expertise in piston ring technology and innovation.

Collaborations

Matsushima has collaborated with notable coworkers, including Tetsuo Masuyama and Chikako Sasao. Their combined efforts have likely fostered advancements in their respective fields.

Conclusion

Nobuyuki Matsushima's contributions to coil expander technology and piston ring design reflect his innovative spirit and dedication to engineering excellence. His patents demonstrate a commitment to improving performance and reliability in automotive applications.