Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10453359 | Braille learning apparatus and braille learning method using the same | Hangsok Kim, Kyounghwang LEE, Minsung Son | 2019-10-22 |
| 10424223 | Braille actuator and braille outputting device using same | Kyoung-Hwang Lee, Min Sung Son, Hang Sok Kim | 2019-09-24 |