Wonjae Choi, Miso Kim and Jaeyub Hyun, “Gradient-index phononic crystal flat lens and design method for same”, Registration No. US 12142255 (2024. 11. 12), United States

Jaeyub Hyun, Yong Tae Kim, Il-Doh, Bongyoung Ahn, Kyungmin Baik and Sehwa Kim, “Ultra-thin acoustic lens  for subwavelength focusing in megasonic range, and design method therefor”, Registration No. US 11437013 (2022. 09. 06), United States

Wonjae Choi, Jaeyub Hyun, Hongmin Seung and Jongmoon Ha, “Plane wave generator using phononic-crystal lens and method for designing the same”, Registration No. 0123157 (2021 .10. 13), Republic of Korea

Miso Kim, Wonjae Choi and Jaeyub Hyun, “Gradient-index phononic crystals and its design method”, Registration No. 10-2274826 (2021 .07. 02), Republic of Korea

Wonjae Choi, Miso Kim and Jaeyub Hyun, “Gradient-index phononic-crystal lens and its design method”, Registration No. 10-2236192 (2021. 03. 30), Republic of Korea

Yong Tae Kim, Kyungmin Baik and Jaeyub Hyun, "Improved ultrasonic transducer with the enhanced acoustic radiation power", Registration No. 10-2097103 (2020. 03. 30), Republic of Korea

Jaeyub Hyun, Yong Tae Kim, Bongyoung Ahn, Il-Doh, Kyungmin Baik and Sehwa Kim, “Design method of ultrathin acoustic lens for subwavelength focusing in megasonic range”, Registration No. 10-1996750 (2019. 06. 28), Republic of Korea

Kap Jin Lee, Semyung Wang, Inhan Ga, Junghwan Kook and Jaeyub Hyun, “Haptic display apparatus and vibrating panel having plurality of vibrating point”, Registration No. 10-1801389 (2017. 11. 20), Republic of Korea

Kap Jin Lee, Semyung Wang, Inhan Ga, Junghwan Kook and Jaeyub Hyun, “Haptic apparatus and method of partial vibration”, Registration No. 10-1787752 (2017.10. 12), Republic of Korea