Location History:
- Sterling Height, MI (US) (1982)
- Sterling Heights, MI (US) (1978 - 1992)
- Noblesville, IN (US) (1989 - 1994)
Company Filing History:
13 out of 30,982 
1 out of 5 Years Active: 1978-1994
Title: Innovations of John J Croat
Introduction
John J Croat is a notable inventor based in Sterling Heights, MI (US). He holds a total of 13 patents, showcasing his significant contributions to the field of magnet technology. His work has led to advancements that enhance the performance and versatility of permanent magnets.
Latest Patents
One of his latest patents is titled "Hot pressed magnets formed from anisotropic powders." This invention provides a method for forming a high energy product, anisotropic, hot pressed iron-rare earth metal permanent magnet without the need for magnetic alignment during pressing or additional hot working steps. The method involves providing a quantity of anisotropic iron-rare earth metal particles and hot pressing them to create a substantially anisotropic permanent magnet. This innovation allows for a greater variety of shapes compared to conventional hot worked anisotropic permanent magnets, enabling the tailoring of magnetic properties and shapes to meet specific application needs.
Another significant patent is "Fine grained anisotropic powder from melt-spun ribbons." This method discloses the production of a rapidly solidified, fine grained, magnetically anisotropic powder of the RE-Fe-B type. The material is optimally quenched or slightly overquenched and undergoes a hydrogen absorption-hydrogen desorption process, resulting in a fine grained material that contains the essential magnetic phase RE.sub.2 TM.sub.14 B and an intergranular phase, making it magnetically anisotropic.
Career Highlights
Throughout his career, John J Croat has worked with prominent companies such as GM Global Technology Operations LLC and General Motors LLC. His experience in these organizations has allowed him to develop and refine his innovative ideas in magnet technology.
Collaborations
John has collaborated with notable coworkers, including Robert W Lee and Viswanathan Panchanathan. These partnerships have contributed to the advancement of his research and inventions.
Conclusion
John J Croat's contributions to the field of magnet technology through his patents and collaborations highlight his role as a significant inventor. His innovative methods continue to influence the development of advanced magnetic materials.