Location History:
- Tokyo, JP (2011)
- Sendai, JP (2017 - 2019)
- Matsumoto, JP (2020 - 2021)
Company Filing History:
7 out of 4,826 
2 out of 993 
1 out of 152 Years Active: 2011-2021
Title: Innovator Hiroyasu Kataoka: Pioneering Advances in Magnetic Recording Technologies
Introduction
Hiroyasu Kataoka, located in Sendai, Japan, is a prominent inventor with a significant portfolio of innovations in the field of magnetic recording media. With a total of eight patents to his name, he is recognized for his contributions that enhance the performance and efficiency of magnetic recording technologies.
Latest Patents
Kataoka's most recent patents showcase his innovative approach to developing advanced magnetic recording media. One of his notable inventions is a magnetic recording medium featuring a tin-containing seed layer, designed to achieve a reduced average grain diameter and minimize grain diameter dispersion. This technology includes a substrate, a grain diameter control layer, a first seed layer, a second seed layer composed of TiN (titanium nitride) crystal grains, and a magnetic recording layer that contains an ordered alloy.
Another groundbreaking patent focuses on reducing surface roughness in the magnetic recording layer without compromising its magnetic properties. This invention incorporates a substrate, a seed layer, and a magnetic recording layer, where the seed layer can either consist of a spinel structure with combinations of magnesium, chromium, and oxygen; zinc, iron, and oxygen; or an inverse spinel structure formed with magnesium, titanium, and oxygen.
Career Highlights
Kataoka has built a distinguished career working with renowned organizations, including Fuji Electric Co., Ltd. and Tohoku University. His tenure at these institutions has facilitated the advancement of his research and enabled him to innovate in the field of magnetic recording technologies.
Collaborations
Throughout his career, Kataoka has collaborated with esteemed colleagues such as Takehito Shimatsu and Hiroto Kikuchi. These collaborations have not only contributed to the success of his patents but have also fostered an environment of innovation within the field.
Conclusion
Hiroyasu Kataoka continues to be a leading figure in the development of magnetic recording media. His innovative patents and collaborative efforts reflect his commitment to advancing technology and enhancing the functionality of magnetic recording systems. As he progresses in his career, the impact of his inventions will undoubtedly shape the future of this critical technological domain.