Junichi Shimoyama

Title: Innovations of Junichi Shimoyama in Oxide Superconductors

Introduction

Junichi Shimoyama is a notable inventor based in Sumida-ku, Tokyo, Japan. He has made significant contributions to the field of superconductivity, particularly through his innovative work on oxide superconductors. His research has implications for various applications in technology and materials science.

Latest Patents

Shimoyama holds a patent for an oxide superconductor that consists of an oxide comprising bismuth, lead, strontium, calcium, and copper. This superconductor features a molar ratio of lead to bismuth of at least 0.2:1. The internal structure of this material contains domains with a relatively high concentration of lead and no long-period structure, alongside domains with a lower concentration of lead and a long-period structure. This unique configuration allows the oxide superconductor to exhibit a storing pinning function and a high critical current density (Jc) even at elevated temperatures and magnetic fields. Furthermore, it can be produced using industrial methods and is easily processed into wire forms.

Career Highlights

Throughout his career, Junichi Shimoyama has focused on advancing the understanding and application of superconducting materials. His work has been instrumental in developing technologies that leverage the unique properties of oxide superconductors.

Collaborations

Shimoyama has collaborated with notable colleagues, including Mikio Takano and Zenji Hiroi. Their joint efforts have contributed to the advancement of research in superconductivity and related fields.

Conclusion

Junichi Shimoyama's innovative work in oxide superconductors highlights his significant role in the field of materials science. His contributions continue to influence advancements in technology and superconductivity.