This inventor holds 6 USPTO granted patents. Top assignees: E.i. Dupont De Nemours and Company, E. I. Du Pont Nemours and Co.. Active years: 1991-2003.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Sayre, PA (US) (1991 - 1998)
- Wilmington, DE (US) (2001 - 2003)
Company Filing History:


Years Active: 1991-2003
Title: Innovations of John H Choi
Introduction
John H Choi is a notable inventor based in Sayre, PA (US), recognized for his contributions to the field of ceramic materials. With a total of 6 patents to his name, Choi has made significant advancements in processes related to ceramic tape and photosensitive compositions.
Latest Patents
One of Choi's latest patents is titled "Process for patterning non-photoimagable ceramic tape." This invention focuses on a method for patterning ceramic tape by applying a photoresist, which, after exposure and development, serves as a mask for the tape. The process allows for the removal of undesired sections of the tape, which contains polymeric binders with functional groups but lacks photosensitive ingredients. This unique approach enables the tape to be processed with water while still allowing the use of conventional photoresists as a development barrier layer. Another significant patent involves "Photosensitive ceramic compositions containing polycarbonate polymers," which pertains to a polymer comprising specific repeat units.
Career Highlights
Throughout his career, John H Choi has worked with prominent companies, including E.I. DuPont De Nemours and Company. His work has contributed to advancements in material science and engineering, particularly in the development of innovative ceramic products.
Collaborations
Choi has collaborated with notable individuals in his field, including Neville Everton Drysdale and Harvey Walter Taylor, Jr. These collaborations have further enriched his research and development efforts.
Conclusion
John H Choi's innovative work in ceramic materials and processes has established him as a significant figure in the field. His patents reflect a commitment to advancing technology and improving manufacturing techniques.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile