Hiroyasu Yumura

Title: Hiroyasu Yumura: Innovator in Superconducting Technology

Introduction

Hiroyasu Yumura is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of superconducting technology, holding a total of 8 patents. His work focuses on enhancing the efficiency and functionality of superconducting cables, which are crucial for modern electrical systems.

Latest Patents

Yumura's latest patents include a method for operating superconducting cables and a novel superconducting cable system. The method involves using a conductor cooled by a refrigerant to transmit electric power. By adjusting the refrigerant temperature, the transmission capacity of the superconducting cable can be modified without the need for overdesigning the cabling or adding extra cables. His superconducting cable design features a former, a superconducting conductor layer, an electric insulating layer, a shield layer, and a normal-conducting metal layer. This innovative design helps to suppress temperature rises during short-circuit accidents and reduces AC losses during normal operation.

Career Highlights

Throughout his career, Yumura has worked with notable companies such as Sumitomo Electric Industries, Limited and The Tokyo Electric Power Company, Incorporated. His experience in these organizations has allowed him to develop and refine his inventions in superconducting technology.

Collaborations

Yumura has collaborated with esteemed colleagues, including Yoshihisa Takahashi and Shoichi Honjo. Their combined expertise has contributed to advancements in the field of superconductivity.

Conclusion

Hiroyasu Yumura's innovative work in superconducting technology has positioned him as a key figure in the industry. His patents and collaborations continue to influence the development of efficient electrical systems.