Shigeki Sawa

Title: Shigeki Sawa: Innovator in Anisotropic Plastics Magnets

Introduction

Shigeki Sawa is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of materials science, particularly in the development of high-performance anisotropic plastics magnets. His innovative work has led to advancements in magnetic materials that are essential for various applications.

Latest Patents

Shigeki Sawa holds a patent for a high-performance anisotropic plastics magnet and a process for producing it. This anisotropic plastics magnet boasts a maximum energy product (BH)max not lower than 0.9 MG Oe, a remanence Br not lower than 2000G, and a coercive force Hc not lower than 1800 Oe. The magnet is composed of at least one ferromagnetic powder with a large magnetic anisotropy constant and at least one selected from metal-cross-linked copolymers of α-olefin and α,β-unsaturated mono- or dicarboxylic acid, as well as saponified copolymers of ethylene and vinyl acetate. The axis of easy magnetization of the ferromagnetic powders is oriented substantially in one direction. The production process involves mixing the ferromagnetic powder and resin, forming the mixture under heating while applying a magnetic field.

Career Highlights

Throughout his career, Shigeki Sawa has worked with prominent companies such as Japan Special Steel Co., Ltd. and Mitsui Polychemicals Co., Ltd. His experience in these organizations has contributed to his expertise in materials development and innovation.

Collaborations

Shigeki Sawa has collaborated with notable colleagues, including Takeshi Anbo and Kiyoshi Otani. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Shigeki Sawa's contributions to the field of anisotropic plastics magnets highlight his role as an innovator in materials science. His patent and career achievements reflect his dedication to advancing technology in this area.