Company Filing History:
Years Active: 2004-2013
Title: The Innovative Contributions of Duck-hee Lee
Introduction
Duck-hee Lee is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of electrophotography, holding a total of 9 patents. His work focuses on developing advanced toners and developing agents that enhance the performance and efficiency of electrophotographic processes.
Latest Patents
One of Duck-hee Lee's latest patents is for a toner for electrophotography. This toner includes a binder resin, a colorant, and a releasing agent. It is characterized by a complex viscosity of 4e2 Pa·s to 8e3 Pa·s at a temperature range of 120 to 160°C and an angular velocity range of 1.6 to 10 rad/s. The toner also exhibits a rate of change of complex viscosity of 165 to 185 Pa·s/°C at 1.6 rad/s and 70 to 80 Pa·s/°C at 10 rad/s within the specified temperature range. Additionally, it demonstrates a stress relaxation of 1.0 e3 to 4.5 e4 Pa at a relaxation time of 0.05 to 0.3 seconds under the same temperature conditions. Another notable patent is for an electrophotographic developing agent, which includes a binder resin, a releasing agent, a colorant, and a charge control agent. This developing agent is designed to have excellent fusing properties and durability, preventing issues such as hot offset and wrap jamming.
Career Highlights
Duck-hee Lee is currently employed at Samsung Electronics Co., Ltd., where he continues to innovate in the field of electrophotography. His work has been instrumental in advancing the technology used in printers and copiers, contributing to improved print quality and efficiency.
Collaborations
Duck-hee Lee has collaborated with notable colleagues, including Jong-moon Eun and Sang-deok Kim. Their combined expertise has led to significant advancements in the development of electrophotographic materials.
Conclusion
Duck-hee Lee's contributions to the field of electrophotography through his innovative patents and collaborations highlight his role as a leading inventor in this technology. His work continues to influence the industry and improve the performance of printing technologies.
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