Sogo Oikawa

Title: Sogo Oikawa: Advancing Magnetic Recording Media

Introduction

Sogo Oikawa is an inventor based in Tokyo, Japan, who works at Sony Group Corporation. His patent work focuses on magnetic recording media, including tape designs intended to improve reliability and surface characteristics. He is associated with 3 patents.

Latest Patents

Oikawa’s recent patent work includes innovations in magnetic recording tape and its layered structure.

“Magnetic recording medium” describes a medium with a magnetic layer, an underlayer, and a base layer. The invention controls the distribution of a chlorine-containing binder in the underlayer. It specifies limits for the thickness of regions with higher chlorine counts, the core portion level difference, and the underlayer’s average thickness. These parameters are intended to improve the tape’s reliability and resolution.

“Magnetic recording medium having a core part level difference” describes a tape-form medium with a magnetic layer and an underlayer. It sets a maximum core part level difference and limits the underlayer’s average thickness. The patent also describes a tape cartridge containing this medium.

Career Highlights

Oikawa’s listed inventions address the design and measurement of magnetic recording media. Their technical details include surface-height data acquired with an atomic force microscope and specifications for underlayer thickness and surface profile.

Collaborations

Oikawa’s listed coworkers include Junichi Tachibana and Takashi Aizawa. His work is associated with Sony Group Corporation.

Conclusion

Sogo Oikawa’s patent portfolio reflects a focus on magnetic tape structures, with particular attention to underlayer composition, thickness, and surface profile.