Company Filing History:

19 out of 623

Korea Research Institute of Chemical Technology

patents

1 out of 787

Cheil Industries Inc.

patents

2 out of 832,680

Other

patents

where one patent can have more than one assignee

Years Active: 1993-2003

Loading Chart...

21 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6582879 - Reactive photo acid-generating agent and heat-resistant photoresist composition with polyamide precursor (2003-06-24),

2. 6525109 - Process of preparing polycarbonates using microwave (2003-02-25),

3. 6433184 - Polyamide-imide having head-to-tail backbone (2002-08-13),

4. 6423812 - Process of preparing polycarbonates (2002-07-23),

5. 6232432 - Process for the preparation of polycarbonates (2001-05-15),

6. 6162893 - Soluble polyimide resin having a dialkyl substituent for a liquid (2000-12-18),

7. 616289 - Soluble polyimide resin having a dialkyl substituent for a liquid (2000-12-19),

8. 6046303 - Soluble polyimide resin having alkoxy substituents and the preparation (2000-04-04),

9. 6031067 - Soluble polyimide resin and process of preparation of the same (2000-02-29),

10. 6018055 - Polyarylether containing N-substituted imide groups and process for (2000-01-25),

11. 6013760 - Soluble polyimide resin for liquid crystal alignment layer and process (2000-01-11),

12. 5955568 - Process for preparing polyamideimide resins by direct polymerization (1999-09-21),

13. 5919942 - Cyclohexane-1,2,4,5-diimide derivative and process for preparing the same (1999-07-06),

14. 5824766 - Polyamideamic acid resin prepolymers, high heat resistant polyamideimide (1998-10-20),

15. 5532334 - Process for preparing polyamideimide resins having high molecular weight (1996-07-02),

Title: Innovations and Contributions of Kil-Yeong Choi

Introduction

Kil-Yeong Choi, based in Daejeon, South Korea, is a distinguished inventor renowned for his contributions to the field of chemical technology. With an impressive portfolio of 21 patents, Choi has established himself as a key figure in the development of advanced materials and innovative processes.

Latest Patents

Among his latest innovations, Choi has developed a reactive photo acid-generating agent and a heat-resistant photoresist composition using a polyamide precursor. Additionally, he has pioneered a process for preparing polycarbonates utilizing microwave radiation. This innovative method involves solid-state polymerization, where polycarbonate prepolymers are converted into crystalline particles, ultimately resulting in high-quality polycarbonates produced in a significantly reduced timeframe.

Career Highlights

Choi has significantly contributed to various organizations throughout his career. Notably, he worked at the Korea Research Institute of Chemical Technology, where he was able to leverage his expertise to advance research and practical applications in chemical technology.

Collaborations

Throughout his inventions, Kil-Yeong Choi has collaborated with esteemed colleagues, including Mi-hie Yi and Moon-Young Jin. These partnerships have facilitated the development of groundbreaking technologies and enhanced the potential for market applications of their research.

Conclusion

Kil-Yeong Choi's dedication to innovation and excellence has resulted in significant advancements in chemical processes and materials technology. His extensive patent portfolio is a testament to his ingenuity and impact in the realm of scientific research and industrial applications.

This text is generated by artificial intelligence and may not be accurate.

Please report any incorrect information to support@idiyas.com

Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.