Fuminori Tokuda

Title: Fuminori Tokuda: Innovator in Magnetic Recording Medium

Introduction

Fuminori Tokuda is a prominent inventor based in Komoro, Japan, known for his significant contributions to the field of magnetic recording technology. With a total of two patents to his name, he has been instrumental in the development of innovative materials that enhance magnetic recording mediums.

Latest Patents

Fuminori Tokuda's latest patents focus on advanced magnetic recording mediums. The first patent describes a magnetic recording medium that consists of a base coated with a magnetic coating material. This innovative medium utilizes a polyurethane resin with a metal sulfonate group as a binder, alongside a vinyl chloride-vinyl acetate copolymer that contains at least 8% vinyl alcohol in relation to the total binder weight. It also incorporates nitrocellulose, which disperses magnetic particles effectively. Additionally, the binder can include an isocyanate compound, providing improved particle dispersibility.

The second patent also revolves around a magnetic recording medium, which consists of a base and a magnetic coating that includes both a binder and dispersed magnetic powder. This magnetic powder contains a nonmagnetic powder with an average particle size of no more than 2 µm and a hardness of at least 6 on the Mohs scale, constituting 1-20% of the total weight of the magnetic powder. The binder in this patent is a resin, specifically polyester resin, containing a group defined by the formula --SO₃M, where M represents a monovalent metal such as sodium.

Career Highlights

Fuminori Tokuda is currently employed at TDK Electronics Company, Limited, where he has leveraged his expertise to innovate in the magnetic recording medium sector. His work plays a crucial role in enhancing the performance and reliability of storage technologies, which have wide-ranging applications in various electronic devices.

Collaborations

In his innovative journey, Fuminori has collaborated with fellow inventor Yutaka Nakashima, contributing to the advancement of magnetic recording technologies. Their combined efforts in the field have fostered the development of new materials and methodologies that push the boundaries of existing technology.

Conclusion

Fuminori Tokuda's contributions to the field of magnetic recording mediums are noteworthy, as evidenced by his patents and ongoing work at TDK Electronics Company, Limited. His innovative approaches to material science continue to influence the technological landscape, paving the way for improvements in recording mediums that are essential to modern electronics.