Location History:
- Tokyo, JP (1993)
- Sendai, JP (1995)
Company Filing History:
2 out of 110 
2 out of 66 
2 out of 128 
Years Active: 1993-1995
Title: **The Innovations of Yuji Yaegashi: A Pioneer in Superconductive Materials**
Introduction
Yuji Yaegashi is an esteemed inventor based in Tokyo, Japan, known for his significant contributions to the field of superconductive materials. With two patents to his name, he has played a vital role in advancing the science of oxide superconductors, which are pivotal in various technological applications.
Latest Patents
Among Yuji Yaegashi's latest patents is a remarkable invention involving superconductive copper-containing oxide materials characterized by the formula A.sub.p - A. This innovation focuses on an oxide superconductive material featuring an infinite layer structure and aims to achieve a relatively high transition temperature (T.sub.c). The formula for this superconductor is (R.sub.1-x Ca.sub.x)(Ba.sub.1-y Sr.sub.y).sub.2 Cu.sub.3 O.sub.7-z, where R consists of rare earth elements such as Tm, Yb, and Lu. The inventive process entails firing a specific composition under controlled oxygen partial pressures, which is crucial for adjusting the chemical properties of the superconductor.
Career Highlights
Yuji Yaegashi has amassed considerable experience throughout his career. He has been affiliated with notable institutions such as the Central Research Institute of Electric Power Industry and Tohoku Electric Power Company, Inc., where he engaged in pioneering research and development focused on superconductive materials. His work has contributed greatly to understanding and improving the applicability of superconductors in electrical systems.
Collaborations
Throughout his career, Yaegashi has collaborated with esteemed colleagues, including Hisao Yamauchi and Takeshi Sakurai. Their combined expertise has been instrumental in advancing research initiatives and facilitating the development of groundbreaking superconductive technologies.
Conclusion
Yuji Yaegashi’s innovative work in the field of superconductive materials exemplifies the impact of dedicated research and collaboration. His patents not only stand as a testament to his inventiveness but also pave the way for future advancements in superconductive technologies that could revolutionize various sectors.