Company Filing History:
2 out of 131,906 
1 out of 263 Years Active: 2013-2017
Title: Innovations by Jung-ik Choi
Introduction
Jung-ik Choi is a notable inventor based in Suwon-si, South Korea. He has made significant contributions to the field of image-forming apparatuses and electrophotography. With a total of 3 patents, his work focuses on enhancing the quality and efficiency of imaging technologies.
Latest Patents
One of his latest patents is for a semiconductive roller of an image-forming apparatus. This innovative roller is designed to stably generate high-quality images over extended periods by effectively inhibiting the migration of free epichlorohydrin (ECH) components to its surface. The roller features an elastic layer made from a semiconductive rubber composition, which includes a specific ratio of base rubber and hydrin rubber. The extracted amount of the ECH component from the elastic layer is maintained at about 2% by volume or less, as determined by X-ray fluorescence (XRF) analysis.
Another significant patent by Choi involves a toner for electrophotography. This toner comprises a binder resin, a colorant, and a releasing agent. It exhibits a complex viscosity ranging from 4e2 Pa·s to 8e3 Pa·s within a temperature range of 120 to 160°C. The toner also demonstrates specific stress relaxation properties and rates of change in viscosity, making it suitable for high-performance applications.
Career Highlights
Jung-ik Choi has worked with prominent companies in the technology sector, including Samsung Electronics and S-Printing Solution. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in imaging technology.
Collaborations
Choi has collaborated with talented individuals such as Jae-hyeuk Jeong and Soon-cheol Jeong. These partnerships have fostered a creative environment that encourages the development of cutting-edge technologies.
Conclusion
Jung-ik Choi's contributions to the fields of imaging and electrophotography are noteworthy. His innovative patents reflect his commitment to enhancing technology and improving the quality of image-forming processes. His work continues to influence advancements in these critical areas.