Yasuji Fukui

Title: Yasuji Fukui: Innovator in Rare Earth Magnet Alloys

Introduction

Yasuji Fukui is a notable inventor based in Tokai, Japan. He has made significant contributions to the field of materials science, particularly in the development of rare earth magnet alloys. His innovative work has led to advancements that are crucial for various technological applications.

Latest Patents

Fukui holds a patent for a rare earth magnet alloy. This alloy includes, by weight, 8 to 20% of Samarium (Sm), 6 to 20% of one or more elements selected from Neodymium (Nd), Praseodymium (Pr), and Yttrium (Y), 10 to 25% of Iron (Fe), 5 to 10% of Copper (Cu), 0.1 to 1% of Titanium (Ti), 1 to 4% of Zirconium (Zr), 0.1 to 1.0% of Manganese (Mn), and 0.003 to 0.015% of Boron (B). The alloy may also include an optional amount of Cerium (Ce) and the balance of Cobalt (Co). The total sum for the amount of Nd, Pr, Y, and Ce, along with the amount of Sm, is from 22 to 28%. The magnet alloy boasts a coercive force of greater than 10 KOe, a residual magnetic flux density of greater than 10.5 KG, and a maximum energy product of about 28 MGOe.

Career Highlights

Yasuji Fukui is currently employed at Aichi Steel Works, Ltd., where he continues to innovate and develop advanced materials. His work has been instrumental in enhancing the performance of rare earth magnets, which are essential in various industries, including electronics and automotive.

Collaborations

Fukui has collaborated with notable colleagues such as Yoshinobu Honkura and Tooru Matsuo. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Yasuji Fukui's contributions to the field of rare earth magnet alloys exemplify the importance of innovation in materials science. His patented work not only advances technology but also highlights the collaborative efforts within the industry.