Company Filing History:
Years Active: 1981
Title: The Innovations of Daniel Jullien
Introduction
Daniel Jullien is an accomplished inventor based in St. Martin d'Heres, France. He has made significant contributions to the field of materials science, particularly in the development of permanent magnets. His innovative approach has led to advancements in the thermal treatment processes of Fe-Co-Cr alloys.
Latest Patents
Daniel Jullien holds a patent for a process for the thermal treatment of Fe-Co-Cr alloys for permanent magnets. This process involves a specific composition of the alloy, which includes 10 to 40% of chromium and various other elements. The treatment process includes homogenization at temperatures between 1200°C and 1400°C, followed by an annealing treatment and tempering treatments at 500°C to 600°C. The annealing treatment consists of two stages, ensuring that the resulting magnets exhibit improved hysteresis curves and better rectangular shapes.
Career Highlights
Jullien is associated with Aimants Ugimag SA, where he applies his expertise in magnet technology. His work has been pivotal in enhancing the performance of permanent magnets, which are essential in various applications, including electronics and automotive industries. His innovative processes have positioned him as a key figure in the field of magnet manufacturing.
Collaborations
Daniel Jullien has collaborated with Claude Bronner, contributing to the advancement of magnet technology through shared expertise and innovative ideas.
Conclusion
Daniel Jullien's contributions to the field of permanent magnets through his patented processes highlight his role as a significant inventor in materials science. His work continues to influence the development of advanced magnetic materials.