Location History:
- Osaka, JP (1978 - 1990)
- Sakai, JP (1992)
Company Filing History:
Years Active: 1978-1992
Title: Iwao Yamazaki: Innovator in Microcrystalline Barium Ferrite Technology
Introduction
Iwao Yamazaki is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of materials science, particularly in the production of microcrystalline barium ferrite platelets. With a total of three patents to his name, Yamazaki's work has advanced the understanding and application of magnetic materials.
Latest Patents
Yamazaki's latest patents include innovative processes for producing microcrystalline barium ferrite platelets. One notable patent describes a method that involves forming an aqueous alkaline dispersion containing coprecipitates of hydroxides of barium ions and iron (III) ions. This process includes heating the dispersion to convert the coprecipitates into precursors of barium ferrite and calcining them to produce microcrystalline platelets. The improvement in this process involves adding a carbonating agent to insolubilize water-soluble barium ions and calcining the precursors in the presence of sodium sulfate.
Another significant patent focuses on producing Co/Ti-substituted barium ferrite. This process results in microcrystalline barium ferrite platelets with specific magnetic properties, including a temperature coefficient of coercive force and a saturated magnetization of not less than 56 emu/g. The method includes forming amorphous precursors, adding nickel salts, and subjecting the slurry to hydrothermal reactions.
Career Highlights
Yamazaki is currently associated with Sakai Chemical Industry Co., Ltd., where he continues to innovate in the field of magnetic materials. His work has not only contributed to the scientific community but has also had practical applications in various industries.
Collaborations
Throughout his career, Yamazaki has collaborated with notable colleagues, including Susumu Iwasaki and Shigefumi Kamisaka. These collaborations have further enriched his research and development efforts.
Conclusion
Iwao Yamazaki's contributions to the field of microcrystalline barium ferrite technology highlight his role as a leading inventor. His innovative processes and collaborations have paved the way for advancements in magnetic materials, showcasing the importance of his work in both academic and industrial settings.