Norio Ota

Title: Norio Ota: Innovator in Optical and Magnetic Recording Technologies

Introduction

Norio Ota is a distinguished inventor based in Yawara, Japan. He has made significant contributions to the fields of optical and magnetic recording technologies. With a total of 3 patents to his name, Ota's work has had a notable impact on the industry.

Latest Patents

One of Ota's latest patents is for a recording and reproducing apparatus of thin optical discs. This invention utilizes the same optical system as that of CDs and DVDs, providing a technique that allows for stable high-speed rotation of thin optical discs. The design minimizes airflow turbulence, employing a transparent turntable and positioning the recording and reproducing head opposite the thin optical disc mounting surface.

Another significant patent involves a magnetic recording medium that maintains a specific relationship between coercive force (HC) and residual magnetization (MR) in the perpendicular direction to the substrate surface. This medium features a substrate, a magnetic functional layer, and a magnetic recording layer with perpendicular magnetic anisotropy. The invention ensures that minute magnetic domains are stably retained, offering excellent thermal disturbance resistance.

Career Highlights

Norio Ota is currently associated with Hitachi Maxell, Limited, where he continues to innovate in the field of recording technologies. His work has been instrumental in advancing the capabilities of optical and magnetic recording systems.

Collaborations

Ota has collaborated with notable coworkers, including Katsusuke Shimazaki and Satoshi Matsunuma. Their combined expertise has contributed to the development of cutting-edge technologies in their respective fields.

Conclusion

Norio Ota's contributions to optical and magnetic recording technologies highlight his role as a leading inventor in Japan. His innovative patents reflect a commitment to advancing technology and improving recording systems.