This inventor holds 2 USPTO granted patents and 1 EPO patent. Top assignees: Lg Cable Ltd., Ls Cable Ltd.. Active years: 2006-2008.
Company Filing History:
Years Active: 2006-2008
Title: Innovations of Chan-Joo Lee
Introduction
Chan-Joo Lee is a notable inventor based in Seoul, South Korea. He has made significant contributions to the field of optical fiber technology. With a total of 2 patents, his work focuses on enhancing the performance and manufacturing processes of optical fibers.
Latest Patents
One of his latest patents is for a low-attenuation optical fiber and its producing method. This invention discloses a low-attenuation single-mode optical fiber that features a photoconductive core and a clad, which exhibits very low OH concentration in the Mode Field Diameter (MFD) region. The optical fiber includes a core positioned at its center for photoconduction, along with a dehydrated clad and a base clad that are coated in order. The dehydrated clad has a refractive index that is substantially identical to that of the base clad. Importantly, the refractive index of the core is greater than those of both the dehydrated and base clads. The region composed of the core and the dehydrated clad has an MFD region where the OH concentration is less than 0.8 ppb.
Another significant patent involves a method of manufacturing an optical fiber preform using modified chemical vapor deposition (MCVD), which includes dehydration and dechlorination processes. This method executes a series of steps repeatedly while changing the composition of the soot generation gas according to the refractive index profile. The process includes forming a soot layer with pores on the inner wall of a deposition tube at a temperature lower than the soot sintering temperature, removing hydroxyl groups while maintaining the pores, and sintering the soot layer by heating the deposition tube at a temperature above the soot sintering temperature.
Career Highlights
Chan-Joo Lee has worked with prominent companies in the industry, including LG Cable Ltd. and LS Cable Ltd. His experience in these organizations has contributed to his expertise in optical fiber technology.
Collaborations
Throughout his career, Chan-Joo Lee has collaborated with notable colleagues such as Ki-Wan Jang and Lae-Hyuk Park. These collaborations have likely enriched his research and development efforts.
Conclusion
Chan-Joo Lee's innovations in optical fiber technology demonstrate his commitment to advancing the field. His patents reflect a deep understanding of the complexities involved in optical fiber manufacturing and performance enhancement.