Yasunobu Mishima

Title: Yasunobu Mishima: Innovator in Ferrite Technology

Introduction

Yasunobu Mishima is a notable inventor based in Kume-gun, Japan. He has made significant contributions to the field of ferrite technology, particularly in the development of bonded magnets. With a total of 4 patents to his name, Mishima's work has advanced the capabilities of ferrite materials in various applications.

Latest Patents

Mishima's latest patents include innovative formulations and methods for producing ferrite powder for bonded magnets. One of his patents describes a ferrite powder capable of producing a ferrite bonded magnet with high magnetic energy (BH) and excellent fluidity when converted to a compound. This powder has specific characteristics, including an average particle size of 5 µm or less, a specific surface area ranging from 1.90 m/g to less than 2.80 m/g, and a compression density between 3.50 g/cm³ and less than 3.78 g/cm³. The resulting compressed molding exhibits a coercive force of 2300 Oe or more and less than 2800 Oe.

Another patent focuses on a ferrite powder that maintains a high intrinsic coercivity (iHc) value, even in low-temperature environments. This innovation includes a method for producing the ferrite powder and a bonded magnet that utilizes it. The specifications for this powder include a specific surface area of 2.20 m/g or more and less than 3.20 m/g, a compression density between 3.30 g/cm³ and less than 3.60 g/cm³, and a coercive force of 3250 Oe or more and less than 3800 Oe.

Career Highlights

Throughout his career, Yasunobu Mishima has worked with prominent companies such as Dowa F-tec Co., Ltd. and Dowa Electronics Materials Co., Ltd. His experience in these organizations has allowed him to refine his expertise in ferrite materials and contribute to various innovative projects.

Collaborations

Mishima has collaborated with talented individuals in his field, including Satoru Tsuboi and Keisuke Ayabe. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in ferrite applications.

Conclusion

Yasunobu Mishima's