Tetsunori Kouda

Title: Tetsunori Kouda: Innovator in Magnetic Recording Technology

Introduction

Tetsunori Kouda is a prominent inventor based in Moriya, Japan. He is known for his significant contributions to the field of magnetic recording technology. With a focus on enhancing the performance and stability of magnetic recording media, Kouda has made strides that benefit various applications in data storage.

Latest Patents

Kouda holds a patent for a magnetic recording medium and magnetic recording apparatus. This innovative medium comprises a magnetic recording layer formed using an ordered alloy containing B on a substrate with an amorphous component. A portion of B in the ordered alloy is segregated in a grain boundary, which reduces the magnetic interaction between magnetic grains. This advancement allows for the formation of fine and minute magnetic domains, leading to a reduction in medium noise. The substrate's heating temperature during the film formation of the magnetic recording layer can be kept low, as the ordering temperature for the ordered alloy containing B is lower than that of ordered alloys without B. This enables the use of glass substrates suitable for mass production. Additionally, the magnetic recording layer exhibits excellent thermal stability due to the high magnetic anisotropy of the ordered alloy. Overall, Kouda's invention provides a magnetic recording medium that is ideal for high-density recording with low medium noise.

Career Highlights

Kouda is associated with Hitachi Maxell, Limited, where he has been instrumental in advancing magnetic recording technologies. His work has not only contributed to the company's reputation but has also paved the way for innovations in the industry.

Collaborations

Kouda has collaborated with notable colleagues, including Nobuyuki Inaba and Hideaki Yamanaka. Their combined expertise has fostered a productive environment for innovation and development in magnetic recording technologies.

Conclusion

Tetsunori Kouda's contributions to magnetic recording technology exemplify the impact of innovative thinking in the field. His patent for a magnetic recording medium demonstrates a significant advancement that enhances performance and stability. Through his work at Hitachi Maxell, Kouda continues to influence the future of data storage solutions.