Akira Morinaga

Title: Akira Morinaga: Innovator in Magnetic Recording Technologies

Introduction

Akira Morinaga is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of magnetic recording technologies, holding a total of 3 patents. His work focuses on improving the performance and reliability of magnetic recording media.

Latest Patents

Morinaga's latest patents include a magnetic recording medium designed for high-density recording. This invention improves the bit error rate while reducing aging changes due to thermal fluctuations. The magnetic recording medium consists of multiple magnetic layers stacked over an underlayer film on a substrate. Notably, the second magnetic layer is thicker than the third and is anti-ferromagnetically coupled with the first magnetic layer through a non-magnetic intermediate layer. Additionally, the fourth magnetic layer is formed above the third layer, contributing to the overall performance of the medium.

Another significant patent involves a magnetic disk drive that optimizes the sense current of the magnetic head based on environmental temperature. This innovation addresses the issue of decreased output from the magnetic head in cold conditions, which can lead to increased coercivity and degraded error rates. The process includes measuring the environmental temperature and adjusting the sense current to achieve the best error rate.

Career Highlights

Morinaga is currently employed at Hitachi Global Storage Technologies Netherlands B.V., where he continues to develop cutting-edge technologies in magnetic recording. His expertise and innovative approach have positioned him as a key player in the industry.

Collaborations

Throughout his career, Morinaga has collaborated with notable colleagues, including Hiroshi Ide and Yoji Maruyama. These partnerships have fostered a creative environment that encourages the development of advanced technologies.

Conclusion

Akira Morinaga's contributions to magnetic recording technologies have significantly impacted the industry. His innovative patents and collaborative efforts continue to drive advancements in this field.