Yeung Joon Sohn

Title: Yeung Joon Sohn: Innovator in Optical and Magneto-Optical Technologies

Introduction

Yeung Joon Sohn is a prominent inventor based in Daejon-Shi, South Korea. He has made significant contributions to the fields of optical and magneto-optical technologies. With a total of four patents to his name, his work has advanced the capabilities of optical devices and storage media.

Latest Patents

One of his latest patents is the "Planar Focusing Grating Coupler." This invention features a light waveguide that includes a cladding layer and a core layer formed on a substrate. It maintains incident laser light in a single mode and incorporates a focusing grating coupler designed with a predetermined grating pitch. This innovation allows for the creation of an ultra-small pickup head for mobile optical disks.

Another notable patent is the "Recording Layer of Magneto-Optical Storage Medium Having Sublayer and Method of Fabricating the Same." This invention comprises a recording layer for information storage and a sublayer made of an alloy containing a transition metal. The sublayer enhances the coercive force of the recording layer through an exchange-coupling effect, improving the stability of the magnetic domain and increasing recording density.

Career Highlights

Yeung Joon Sohn is affiliated with the Electronics and Telecommunications Research Institute, where he continues to push the boundaries of technology. His work has been instrumental in developing advanced optical systems and storage solutions.

Collaborations

He has collaborated with notable colleagues, including Mun Cheol Paek and Dong Woo Suh, contributing to various innovative projects in his field.

Conclusion

Yeung Joon Sohn's contributions to optical and magneto-optical technologies highlight his role as a leading inventor. His patents reflect a commitment to innovation and advancement in technology.