Ryoichi Hiratsuka

Title: Ryoichi Hiratsuka: Innovator in Magnetic Recording Technology

Introduction

Ryoichi Hiratsuka is a prominent inventor based in Miyagi, Japan. He has made significant contributions to the field of magnetic recording technology, holding a total of 15 patents. His work has been instrumental in advancing the capabilities of magnetic recording media.

Latest Patents

Hiratsuka's latest patents include innovative designs for magnetic recording mediums. One of his notable inventions is a magnetic recording medium that features a flexible and elongated substrate. This medium includes a soft magnetic layer with an average thickness ranging from 10 nm to 50 nm, strategically placed between the substrate and the recording layer. The design ensures a difference in Young's modulus of 2.4 GPa or more in the longitudinal direction of the substrate. Another significant patent is for a tape-like magnetic recording medium that incorporates a reinforced substrate. This substrate has a maximum average thickness of 4 µm and includes a cobalt-containing metal layer. The reinforced substrate is designed to withstand a depth of indentation of 0.25 µm or shallower when subjected to specific pressure conditions.

Career Highlights

Hiratsuka is currently employed at Sony Corporation, where he continues to push the boundaries of magnetic recording technology. His work has not only contributed to the company's innovations but has also set new standards in the industry.

Collaborations

Throughout his career, Hiratsuka has collaborated with talented individuals such as Tomoe Ozaki and Ichiro Kanagawa. These collaborations have fostered a creative environment that has led to groundbreaking advancements in their field.

Conclusion

Ryoichi Hiratsuka's contributions to magnetic recording technology exemplify his innovative spirit and dedication to advancing the industry. His patents reflect a deep understanding of material science and engineering, making him a key figure in the realm of magnetic recording.