Ken Nagashima

Title: Ken Nagashima: Innovator in Superconductive Technology

Introduction

Ken Nagashima is a prominent inventor based in Tokyo, Japan, known for his significant contributions to superconductive technology. With a total of five patents to his name, he has made remarkable advancements in the field, particularly in the design and functionality of superconductive magnets.

Latest Patents

One of Ken Nagashima's latest patents is a power lead for superconductive magnets. This invention is designed to control the invasion of heat to liquid helium, which is essential for storing superconductive coils. The power lead allows for sufficient power supply to the superconductive coils, which are cooled to liquid helium temperatures. The design includes a radiant heat shielded section cooled to liquid nitrogen temperatures, and it incorporates a high-temperature oxide superconductor bulk body. This innovative approach reduces the risk of breakage by ensuring that stress from relative displacement does not affect the bulk body.

Another notable patent is a magnetizing method for producing a coupled body comprised of multi-pole bulk superconducting magnets with varying polarities. This method simplifies the production of a coupled body of superconducting magnets, allowing for a magnetic field gradient to occur. The process involves coupling adjacent members of bulk superconducting magnets in a way that they can be freely superposed, foldable, and unfoldable. This method not only reduces costs but also enhances the efficiency of magnet production.

Career Highlights

Throughout his career, Ken Nagashima has worked with esteemed organizations such as the Railway Technical Research Institute and the International Superconductivity Technology Center. His work in these institutions has allowed him to collaborate with leading experts in the field and contribute to groundbreaking research in superconductivity.

Collaborations

Ken has collaborated with notable colleagues, including Masato Murakami and Naomichi Sakai. These partnerships have further enriched his research and development efforts in superconductive technologies.

Conclusion

Ken Nagashima's innovative work in superconductive technology has made a significant impact on the field. His patents reflect a deep understanding of the complexities involved in superconductive systems and demonstrate his commitment to advancing this critical area of research. His contributions continue to influence the development of superconductive applications worldwide.