Location History:
- Hitachi, JP (1983 - 1984)
- Hitachi-oota, JP (1987 - 2004)
- Hitachiota, JP (1991 - 2012)
Company Filing History:
10 out of 42,496 
1 out of 832,843 Years Active: 1983-2012
Title: Yuzo Kozono: Innovator in Rare-Earth Magnet Technology
Introduction
Yuzo Kozono is a prominent inventor based in Hitachiota, Japan. He has made significant contributions to the field of magnet technology, particularly in the development of rare-earth magnets. With a total of 11 patents to his name, Kozono's work has had a substantial impact on various applications in the industry.
Latest Patents
Kozono's latest patents include innovative designs for rare-earth magnets. One notable patent describes a ferromagnetic material that contains at least one kind of rare-earth element. In this invention, a layer containing alkaline earth elements or rare-earth elements and fluorine is formed at the grain boundary or near the powder surface of the ferromagnetic material. Additionally, a further layer with a lower fluorine concentration and a higher rare-earth element concentration than the host phase is formed adjacent to the first layer. Another significant patent focuses on a low loss magnet and magnetic circuit, which features a lamellar high resistance layer with resistivity ten times or higher than that of a mother phase containing iron or cobalt. This design controls the oxygen content to enhance reliability and residual magnetic flux density.
Career Highlights
Throughout his career, Yuzo Kozono has worked with notable companies, including Hitachi, Ltd. His expertise in magnet technology has positioned him as a key figure in the development of advanced magnetic materials. His innovative approaches have led to improvements in the performance and reliability of magnetic devices.
Collaborations
Kozono has collaborated with several talented individuals in his field, including Matahiro Komuro and Masanobu Hanazono. These collaborations have contributed to the advancement of technology in magnet applications.
Conclusion
Yuzo Kozono's contributions to rare-earth magnet technology exemplify his innovative spirit and dedication to advancing the field. His patents and collaborations have paved the way for significant advancements in magnetic materials, making him a noteworthy inventor in the industry.