Tomoyuki Kumano

Title: Tomoyuki Kumano: Innovator in Conductive Materials and Superconductors

Introduction

Tomoyuki Kumano is a notable inventor based in Kanagawa-ken, Japan. He has made significant contributions to the field of conductive materials and superconductors, holding a total of 2 patents. His innovative methods have advanced the production of high-strength conductive materials and multifilament superconductors.

Latest Patents

Kumano's latest patents include a method for producing a Cu-Ag alloy based conductive material. This method involves continuously casting the alloy into a rod, quickly cooling it, cold-working the rod to a reduction in area of 80% or more, and heat treating the cold-worked rod at a temperature of 250°C to 350°C for at least one hour. The process results in a conductive material with a high strength of 700 MPa or more and conductivity of 75% IACA or more. His second patent details a method of fabricating multifilament superconductors. This method includes cladding a tin rod with a copper-based alloy tube, further cladding it with a niobium-based alloy tube, and applying a copper material as a stabilizer. The resulting composite is thermally treated to form an Nb3Sn superconductor composite.

Career Highlights

Throughout his career, Kumano has worked with prominent companies such as Showa Electric Wire & Cable Co., Ltd. and Toshiba Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in his field.

Collaborations

Kumano has collaborated with notable coworkers, including Masamitsu Ichihara and Satoru Murase. Their combined expertise has fostered an environment of innovation and creativity in their projects.

Conclusion

Tomoyuki Kumano's contributions to the fields of conductive materials and superconductors highlight his role as a significant inventor. His innovative methods and collaborations have paved the way for advancements in technology and materials science.