Tetuya Nakazumi

Title: Tetuya Nakazumi: Innovator in Magnetic Materials

Introduction

Tetuya Nakazumi is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of magnetic materials, particularly through his innovative patents. With a total of 2 patents, Nakazumi's work focuses on enhancing the performance and durability of magnetic recording media.

Latest Patents

His latest patents include the development of an acicular alloy magnetic powder. This innovative material comprises iron and cobalt, featuring an average particle long axis size of not larger than 0.25 µm. The axial ratio ranges from 4 to 8, with a cobalt content of 8 to 50% by weight based on the weight of iron. Notably, it exhibits a saturation magnetization of at least 120 emu/g after being kept at a temperature of 60°C and relative humidity of 90% for a week. This advancement improves corrosion resistance and provides a magnetic recording medium suitable for recording in the short wavelength range. Another patent focuses on an acicular alloy containing magnetic recording medium, which shares similar characteristics and benefits.

Career Highlights

Tetuya Nakazumi is associated with Hitachi Maxell, Limited, where he continues to push the boundaries of magnetic material technology. His work has been instrumental in developing products that meet the demands of modern recording technologies.

Collaborations

He has collaborated with notable coworkers, including Mikio Kishimoto and Toshinobu Sueyoshi, contributing to the advancement of their shared projects and innovations.

Conclusion

Tetuya Nakazumi's contributions to the field of magnetic materials through his patents reflect his dedication to innovation. His work not only enhances the performance of magnetic recording media but also showcases the importance of collaboration in driving technological advancements.