- [P1] Seung Koo Park, Sung Ryul Yun, Ki Uk Kyung, Mi Jeong Choi, Bong Je Park, Suntak Park, Saekwang Nam, Seongcheol Mun, Eun Jin Shin, Jeong Mook Lim, et al. Light transmittance control film and composition for the light transmittance control film, March 30 2023. US Patent 2023/0,103,068
- [P2] Ki-uk Kyung, Bong Je Park, Sang-youn Kim, Saekwang Nam, Sun Tak Park, and Sung Ryul Yun. Auto focusing device, May 12 2020. US Patent 10,649,116
- [P3] Ki-uk Kyung, Saekwang Nam, Bong Je Park, Sun Tak Park, and Sung Ryul Yun. Imaging apparatus with adjustable lens and method for operating the same, December 3 2019. US Patent 10,495,843
- [P4] Ki Uk Kyung, Saekwang Nam, Sung Ryul Yun, Bong Je Park, Sun Tak Park, and Seung Koo Park. Varifocal lens module, July 2 2019. US Patent 10,338,280
- [P5] Ki-uk Kyung, Bong Je Park, Sang-youn Kim, Saekwang Nam, Sun Tak Park, and Sung Ryul Yun. Auto focusing device, June 26 2018. US Patent 10,007,034
- [P6] Sun Tak Park, Ki Uk Kyung, Sae Kwang Nam, Bong Je Park, Seung Koo Park, and Sung Ryul Yun. Optical imaging device, June 26 2018. US Patent 10,009,546
- [P7] Sun Tak Park, Ki-uk Kyung, Saekwang Nam, Bong Je Park, Seung Koo Park, and Sung Ryul Yun. Image processing apparatus and control method thereof, June 5 2018. US Patent 9,992,433
- [P8] Sung-Ryul Yun, Ki-uk Kyung, Sun-tak Park, Bong-Je Park, and Saekwang Nam. Microlens array and method for fabricating thereof, February 6 2018. US Patent 9,885,874
- [P9] Sun Tak Park, Ki Uk Kyung, Sung Ryul Yun, Saekwang Nam, and Bong Je Park. Display apparatus and manufacturing method thereof, December 12 2017. US Patent 9,841,621
- [P10] Ki-uk Kyung, Sung-Ryul Yun, Sun-tak Park, Bong-Je Park, and Saekwang Nam. Shapevariable optical element, August 29 2017. US Patent 9,746,587
- [P11] Sung Ryul Yun, Ki Uk Kyung, Saekwang Nam, Bong Je Park, and Sun Tak Park. Artificial muscle, May 30 2017. US Patent 9,662,197
- [P12] Sun-tak Park, Bong-Je Park, Ki-uk Kyung, Sung-Ryul Yun, and Saekwang Nam. Active diffuser for reducing speckle and laser display device having active diffuser, May 2 2017. US Patent 9,638,928
- [P13] Sung Ryul Yun, Ki Uk Kyung, Sun Tak Park, Saekwang Nam, and Bong Je Park. Thin active optical zoom lens and apparatus using the same, April 4 2017. US Patent 9,612,362
- [P14] Saekwang Nam, Sun Tak Park, Ki Uk Kyung, Bong Je Park, and Sung Ryul Yun. Active reflective lens and apparatus using the same, September 15 2016. US Patent App. 15/065,856
- [P15] Sun Tak Park, Ki Uk Kyung, Bong Je Park, Sung Ryul Yun, and Saekwang Nam. Variable fresnel lens, April 12 2016. US Patent 9,310,532
- [P16] Saekwang Nam, Ki-uk Kyung, Sung-Ryul Yun, Sun-tak Park, and Bong-Je Park. Shapevariable optical element and optical read/write device including the same, July 28 2015. US Patent 9,091,810
- [P17] Sun Tak Park, Sung Ryul Yun, Bong Je Park, Saekwang Nam, and Ki Uk Kyung. Reflective varifocal lens and imaging system including the same, August 20 2015. US Patent App. 14/618,282
- [P18] Saekwang Nam, Ki Uk Kyung, Sung Ryul Yun, Bong Je Park, and Sun Tak Park. Tunable lens system, July 23 2015. US Patent App. 14/600,369
- [P19] Ki-uk Kyung, Sung-Ryul Yun, Sun-tak Park, Bong-Je Park, and Saekwang Nam. Variable-shape optical element, February 12 2015. US Patent App. 14/316,083