Toyoji Okuwaki

Title: The Innovations of Toyoji Okuwaki

Introduction

Toyoji Okuwaki is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of magnetic recording technology. With a total of 6 patents to his name, Okuwaki's work has had a lasting impact on the industry.

Latest Patents

Among his latest patents is a magnetic recording medium that enhances signal-to-noise ratio (S/N) by utilizing a ferromagnetic metal thin film. This film is characterized by a specific fluctuation field of magnetic viscosity measured at 25 degrees Celsius. The applied magnetic field strength is optimized to be between 0.8 to 1.2 times the remanence coercivity, ideally ranging from 15 Oersteds to 30 Oersteds, with a coercivity between 700 Oersteds and 2000 Oersteds. Another significant patent is for a magnetic disk apparatus that includes a magnetic disk with a protective surface layer featuring convex portions. This design minimizes friction between the disk and the magnetic head, allowing for improved floating stability and excellent recording and reproducing characteristics.

Career Highlights

Throughout his career, Toyoji Okuwaki has worked with prominent companies such as Hitachi, Ltd. and Hitachi Maxell, Limited. His experience in these organizations has contributed to his expertise in magnetic recording technologies.

Collaborations

Some of his notable coworkers include Noriaki Okamoto and Masaaki Futamoto. Their collaborative efforts have further advanced the innovations in the field of magnetic recording.

Conclusion

Toyoji Okuwaki's contributions to magnetic recording technology through his patents and collaborations highlight his importance as an inventor. His work continues to influence advancements in the industry.