Tadashi Hiraiwa

Title: Innovations of Tadashi Hiraiwa

Introduction

Tadashi Hiraiwa is a notable inventor based in Shiojiri, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced abrasives. With a total of 9 patents to his name, his work has had a considerable impact on various industrial applications.

Latest Patents

Hiraiwa's latest patents include a cerium oxide-based abrasive and a production method for it. This invention provides a cerium oxide-based abrasive that ensures a high removal rate, minimal generation of scratches, and a high-precision polished surface with small surface roughness. The production process is safe, simple, and low-cost. The method involves several steps, including adding a precipitant to an aqueous cerium-containing light rare-earth salt solution, reacting the light rare-earth salt with a fluorinating agent, and drying and firing the mixed slurry to obtain the abrasive. Another significant patent involves coated fused alumina particles, where the particles are covered with a coating of aluminum titanate formed by applying a Ti-containing compound to the surface and firing it to induce a reaction.

Career Highlights

Throughout his career, Hiraiwa has worked with prominent companies such as Showa Denko K.K. and Showa Denko Kabushiki Kaisha. His experience in these organizations has allowed him to refine his expertise in materials development and innovation.

Collaborations

Hiraiwa has collaborated with notable colleagues, including Tetsuo Hatanaka and Kunihiro Miyazaki. Their joint efforts have contributed to the advancement of technologies in their respective fields.

Conclusion

Tadashi Hiraiwa's innovative work in the development of abrasives showcases his significant contributions to materials science. His patents reflect a commitment to enhancing industrial processes and improving product quality.