Akihiko Hirayama

Title: Akihiko Hirayama: Innovator in Magnetic Materials

Introduction

Akihiko Hirayama is a notable inventor based in Hiroshima, Japan. He has made significant contributions to the field of magnetic materials, particularly through his innovative work on barium ferrite particles. With a total of three patents to his name, Hirayama continues to push the boundaries of technology in his area of expertise.

Latest Patents

Hirayama's latest patents focus on plate-like barium ferrite particles suitable for use in magnetic applications. One of his patents discloses plate-like barium ferrite particles with a solid solution of zinc on the surface. These particles have an average diameter of not less than 0.03 µm and less than 0.1 µm, a BET specific surface area of 55 to 80 m²/g, a coercive force ranging from 300 to 1,500 Oe, and a magnetization of not less than 57 emu/g in a magnetic field of 10 KOe. Another patent describes similar plate-like barium ferrite particles, but with an average particle diameter of 0.05 to 0.3 µm, a coercive force of 300 to 1,500 Oe, and a magnetization of not less than 55 emu/g in a magnetic field of 10 KOe.

Career Highlights

Hirayama is currently employed at Toda Kogyo Corporation, where he applies his expertise in magnetic materials. His work has been instrumental in advancing the company's research and development efforts in this specialized field.

Collaborations

Hirayama has collaborated with notable coworkers, including Norimichi Nagai and Masao Kiyama. Their combined efforts have contributed to the successful development of innovative materials and technologies.

Conclusion

Akihiko Hirayama is a distinguished inventor whose work in magnetic materials has led to significant advancements in the field. His patents reflect a commitment to innovation and excellence, making him a key figure in the industry.