Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12424875 | Wireless charging device and mobile means including same | Nah Young KIM, Seunghwan Lee, Tae Kyoung Kim | 2025-09-23 |
| 12391134 | Wireless charging device, and transportation means comprising same | Tae Kyoung Kim, Nah Young KIM, Seunghwan Lee | 2025-08-19 |
| 12384258 | Wireless charging apparatus and transportation means including same | Tae Kyoung Kim, Nah Young KIM, Seunghwan Lee | 2025-08-12 |
| 12381420 | Wireless power receiver and wireless power transmitter | Nah Young KIM, Seung Hwan Lee, Tae Kyoung Kim | 2025-08-05 |
| 10991197 | Game machine system | Hidehiko Sakamoto, Hideo Takeda, Hiroaki Kashima | 2021-04-27 |
| 10964166 | Operating device of game machine and game machine | Hidehiko Sakamoto, Hideo Takeda, Nobuyuki Matsutani, Hiroaki Kashima, Yuta Kikuchi +8 more | 2021-03-30 |
| 7789665 | Educational aid for vocabulary and recognition of form spatial structure and word enigma straws | — | 2010-09-07 |
| 7041934 | Micro-welder | Yeol-Hwa Lee, Seong-Wan Koo | 2006-05-09 |
| 6837614 | Heat-flux gage, manufacturing method and manufacturing device thereof | Yeol-Hwa Lee, Seong-Wan Koo | 2005-01-04 |