Company Filing History:
Years Active: 1979-1992
Title: Kokichi Miyazawa: Innovator in Magnetic Materials
Introduction
Kokichi Miyazawa is a notable inventor based in Suzuka, Japan. He has made significant contributions to the field of magnetic materials, holding a total of 4 patents. His work focuses on processes that enhance the production and performance of magnetic metal powders.
Latest Patents
Miyazawa's latest patents include a process for producing magnetic metal powder for magnetic recording. This innovative process utilizes a metal compound primarily composed of hydrous iron oxide and involves a reduction treatment combined with the addition of a boron compound. The heat treatment is conducted at temperatures ranging from 350°C to 750°C in a gas atmosphere with a water vapor partial pressure of 10 mmHg or higher. Additionally, he has developed a process for the production of cobalt-containing magnetic iron oxide. This process involves coating the surfaces of phosphor-containing magnetic iron oxide powder with a cobalt compound, resulting in a product with excellent coercivity and thermal stability.
Career Highlights
Miyazawa is currently employed at Ishihara Sangyo Kaisha, Ltd., where he continues to innovate in the field of magnetic materials. His expertise has led to advancements that significantly improve the performance of magnetic tapes and other related products.
Collaborations
Some of his notable coworkers include Kazuo Nakata and Tsuneo Ishikawa. Their collaborative efforts have contributed to the success of various projects within the company.
Conclusion
Kokichi Miyazawa's contributions to the field of magnetic materials through his innovative patents demonstrate his commitment to advancing technology. His work continues to influence the industry and enhance the performance of magnetic recording materials.