This inventor holds 2 USPTO granted patents. Top assignees: Electronics and Telecommunications Research Institute, Korea Telecom. Active years: 2000-2001.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Daejeon, KR (2000)
- Taejon, KR (2001)
Company Filing History:
2 out of 11,796 
1 out of 81 
Years Active: 2000-2001
Title: Gwan Chong Joo: Innovator in Optical Integrated Circuits
Introduction
Gwan Chong Joo is a notable inventor based in Daejeon, South Korea. He has made significant contributions to the field of optical integrated circuits, holding a total of 2 patents. His work focuses on improving the efficiency and effectiveness of optical communication technologies.
Latest Patents
One of Gwan Chong Joo's latest patents is a method for fabricating a hybrid optical integrated circuit employing SOI optical waveguide. This invention relates to an optical integrated circuit and aims to prepare an improved hybrid optical integrated circuit that can effectively accommodate optical waveguides, optical devices, and optical fibers. The advantages of this invention include minimizing horizontal misalignment errors, decreasing manufacturing costs through passive alignment, and reducing Fresnel reflection loss by utilizing an LPCVD silicon nitride layer as an anti-reflection coating.
Another significant patent is a bidirectional optical communication module using a single optical fiber. This module features an optical fiber with a cut-away surface polished at an acute angle, a semiconductor laser for transmitting light, and a bidirectional optical device that integrates a light receiving device with a light transmitting semiconductor laser. This innovation facilitates efficient light signal transmission and receiving operations using a single optical fiber.
Career Highlights
Gwan Chong Joo has worked with prominent organizations such as the Electronics and Telecommunications Research Institute and Korea Telecom. His experience in these institutions has allowed him to develop and refine his innovative ideas in optical technologies.
Collaborations
Throughout his career, Gwan Chong Joo has collaborated with talented individuals, including Sang Hwan Lee and Min Kyu Song. These collaborations have contributed to the advancement of his research and inventions.
Conclusion
Gwan Chong Joo is a distinguished inventor whose work in optical integrated circuits has led to significant advancements in the field. His innovative patents demonstrate his commitment to enhancing optical communication technologies.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile