Shunsuke Hiraiwa

Title: Shunsuke Hiraiwa: Innovator in Sliding Spline Shaft Technology

Introduction

Shunsuke Hiraiwa is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of mechanical engineering, particularly with his innovative designs in sliding spline shaft devices. His work has been recognized for its practical applications in various industries.

Latest Patents

Hiraiwa holds a patent for a sliding spline shaft device. This device features a male spline and a female spline that fits axially in a slidable manner. Notably, at least one of the splines is equipped with a surface processed layer. This layer consists of an undercoat layer, an intermediate layer containing phosphate, and a topcoat layer with solid lubricant. The undercoat layer is composed of iron nitride and/or iron carbide, which enhances the hardness of the base material. This innovation effectively reduces microscopic deformation of the sliding surface and minimizes the increase in the real contact area, thereby preventing stick-slip phenomena. He has 1 patent to his name.

Career Highlights

Throughout his career, Shunsuke Hiraiwa has worked with prominent companies, including Nissan Motor Company Limited and Nihon Parkerizing Co., Ltd. His experience in these organizations has allowed him to apply his inventive skills in real-world applications, contributing to advancements in automotive and industrial technologies.

Collaborations

Hiraiwa has collaborated with notable professionals in his field, including Shigetoshi Kashiwabara and Kunio Katada. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Shunsuke Hiraiwa is a distinguished inventor whose work in sliding spline shaft devices showcases his expertise and innovative spirit. His contributions to mechanical engineering continue to influence the industry, and his patent reflects a commitment to enhancing technology for practical use.