Katsunori Maeshima

Title: Innovations of Katsunori Maeshima

Introduction

Katsunori Maeshima is a prominent inventor based in Miyagi, Japan. He has made significant contributions to the field of magnetic recording technology, holding a total of 17 patents. His work has been influential in advancing the capabilities of magnetic recording mediums.

Latest Patents

One of his latest patents is for a magnetic recording medium. This invention features a tape-shaped magnetic recording medium that includes a recording layer composed of ε-iron oxide particles. The area ratio R, defined as (S/S)×100, of the total area S of an SFD curve of the recording layer in a perpendicular direction, and the area S of the SFD curve where coercivity Hc falls within the range of −500 [Oe]≤Hc≤500 [Oe], is equal to or less than 5.5%. Another notable patent involves a method of producing magnetic powder and a method of producing a magnetic recording medium. This method includes coating the surface of silica-coated precursor particles with at least one type of coating agent, such as a metal chloride or sulfate, followed by firing the coated precursor particles.

Career Highlights

Katsunori Maeshima has worked with renowned companies, including Sony Corporation and Sony Group Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in magnetic recording technology.

Collaborations

Throughout his career, he has collaborated with notable colleagues, including Masaru Terakawa and Minoru Yamaga. These partnerships have contributed to the success of his inventions and patents.

Conclusion

Katsunori Maeshima's contributions to magnetic recording technology are significant, with a total of 17 patents to his name. His innovative work continues to influence the industry and showcases the importance of collaboration in advancing technology.