Hiroshi Nagata

Title: Hiroshi Nagata: Innovator in Sintered Magnet Technology

Introduction

Hiroshi Nagata is a prominent inventor based in Fujian, China. He has made significant contributions to the field of materials science, particularly in the development of advanced sintered magnets. His innovative work has led to the creation of a unique R-Fe-B-based sintered magnet with low B content.

Latest Patents

Hiroshi Nagata holds a patent for an R-Fe-B-based sintered magnet with low B content and a preparation method therefor. This invention discloses a sintered magnet comprising 28.5 wt %-31.5 wt % of R, 0.86 wt %-0.94 wt % of B, 0.2 wt %-1 wt % of Co, 0.2 wt %-0.45 wt % of Cu, 0.3 wt %-0.5 wt % of Ga, 0.02 wt %-0.2 wt % of Ti, and 61 wt %-69.5 wt % of Fe. The sintered magnet features an R-TM series phase accounting for 75% or more of the total volume of grain boundaries. This invention optimizes the content ranges of R, B, Co, Cu, Ga, and Ti, enhancing the volume fraction of the R-TM series phase in grain boundary phases, which results in higher Hcj and SQ values.

Career Highlights

Hiroshi Nagata is associated with Fujian Golden Dragon Rare-earth Co., Ltd., where he continues to innovate in the field of rare-earth materials. His work has garnered attention for its potential applications in various industries, including electronics and renewable energy.

Collaborations

Hiroshi has collaborated with notable coworkers such as Qin Lan and Yan Zhou, contributing to the advancement of sintered magnet technology.

Conclusion

Hiroshi Nagata's contributions to the field of sintered magnets exemplify the importance of innovation in materials science. His patented technology not only enhances the performance of magnets but also paves the way for future advancements in the industry.