International patents​

1. H. Cho, J. Roh, H. Lee, C. Lee, and Y. T. Hong, “Organic light-emitting device and method of fabricating the same”, US patent number: US09818965 (2017.11.14)

2. H. Cho, J. Roh, H. Lee, C. Lee, and Y. T. Hong, “Organic light-emitting device and method of fabricating the same”, US patent number: US9240570 (2016.01.19)

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Domestic patents

1. C. Kim, J. Roh, J. Lee, K. Lee, J. Jeong, "Light emitting device based on quantum dots including light emitting layer blended with hole transport materials and method for manufacturing the same", patent application number: 1020240160199 (2024.11.12)

2. J. Roh, C. Lee, S. Rhee, “Polarized quantum rod light emitting device using langmuir-blodgett technique and the method for manufacturing thereof”, patent number: 1026274220000 (2024.01.16)

3. C. Lee, J. Roh, H. Kim, “Aramid fiber based organic thin film transistors and fabrication method thereof”, patent number: 1022932220000 (2021.08.18)

4. B. J. Jung, C. Lee, and J. Roh, “Organic field-effect transistors and method of fabricating the same”, patent number: 1016495530000 (2016.08.12)

5. H. Cho, J. Roh, H. Lee, C. Lee, and Y. T. Hong, “Organic light-emitting device and method of fabricating the same”, patent number: 1013061920000 (2013.09.03)