Daisuke Watanuki

Title: Daisuke Watanuki: Innovator in Rolling Bearing Technology

Introduction

Daisuke Watanuki is a prominent inventor based in Fujisawa, Japan. He has made significant contributions to the field of rolling bearing technology, holding a total of 2 patents. His innovative work focuses on enhancing the performance and durability of rolling bearings through advanced heat treatment processes.

Latest Patents

Watanuki's latest patents revolve around a unique rolling bearing design. The first patent describes a rolling bearing in which at least one of the bearing rings is produced by applying an induction heat treatment to a spheroidizing annealed steel material. This process results in a hardened layer with a hardness of 550 HV or more on both the raceway surface and the fitting surface. Key features of this invention include an average retained austenite amount of 12 vol % or less, a retained austenite amount of 12 vol % or more on the raceway surface, and a residual compressive stress of -100 MPa or less. Additionally, there is a significant difference in hardness between the raceway surface and regions with hardness below 550 HV.

The second patent also focuses on a rolling bearing with similar specifications, emphasizing the importance of the induction heat treatment in achieving optimal performance. The innovations presented in these patents are expected to enhance the reliability and efficiency of rolling bearings in various applications.

Career Highlights

Daisuke Watanuki is currently employed at NSK Corporation, a leading company in the manufacturing of bearings and precision machinery. His work at NSK has allowed him to apply his innovative ideas and contribute to the advancement of bearing technology.

Collaborations

Watanuki collaborates with talented coworkers, including Hideyuki Hidaka and Kazuki Tamura. Their combined expertise fosters a creative environment that drives innovation within the company.

Conclusion

Daisuke Watanuki's contributions to rolling bearing technology through his patents demonstrate his commitment to innovation and excellence. His work not only enhances the performance of bearings but also sets a benchmark for future developments in the industry.