This inventor holds 3 USPTO granted patents. Top assignees: Eastman-Kodak Company, Nexpress Solutions, Inc.. Active years: 2002-2007.
Company Filing History:
Years Active: 2002-2007
Title: Hichang Yoon: Innovator in Toner Technology
Introduction
Hichang Yoon is a notable inventor based in Fairport, NY (US), recognized for his contributions to the field of toner technology. He holds a total of 3 patents, showcasing his innovative approach to developing advanced materials for electrostatographic applications.
Latest Patents
Yoon's latest patents include a process for preparing colored toner particles. This process involves forming an organic phase by dissolving an organic polymer in a water-immiscible organic solvent, followed by creating a dispersion with an aqueous phase that includes a particulate stabilizer and a colorant. The method ensures the production of colored polymeric toner particles through a series of steps, including homogenization and solvent removal. Another significant patent focuses on toner particles of controlled morphology. This method outlines the preparation of electrostatographic toner by dissolving a polymer material in an organic solvent, dispersing it in an aqueous phase, and recovering the resultant product through evaporation and drying.
Career Highlights
Throughout his career, Hichang Yoon has worked with prominent companies such as Eastman Kodak Company and Nexpress Solutions, Inc. His experience in these organizations has contributed to his expertise in developing innovative toner solutions.
Collaborations
Yoon has collaborated with notable colleagues, including Todd C. Zion and Dennis E. Smith, further enhancing his work in the field of toner technology.
Conclusion
Hichang Yoon's innovative contributions to toner technology, evidenced by his patents and career achievements, highlight his significant role in advancing this specialized field. His work continues to influence the development of high-quality toner materials.