| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 10 | |
| #2 | Australia | 4 | |
| #3 | United States | 2 |
| # | Technology | |
|---|---|---|
| #1 | Amplifiers | |
| #2 | Special electric heating or lighting | |
| #3 | Amplification control | |
| #4 | Transmission | |
| #5 | Climate change mitigation in buildings | |
| #6 | Pulse technique | |
| #7 | AC and DC conversion devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ryoo Tae-Ha | 9 |
| #2 | Jang Byung-Tak | 8 |
| #3 | Jeong Dongyoul | 3 |
| #4 | Ryoo Taeha | 3 |
| #5 | Jang Byung Tak | 2 |
| #6 | Ryoo Tae Ha | 2 |
| #7 | Seol Kyoungsik | 1 |
| #8 | Ryoo Ji-Yeoul | 1 |
| #9 | Jeong Dong-Youl | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2015080393A1 | Power supply device and led illumination device using same | |
| WO2015050343A1 | Apparatus and method for controlling illumination of light-emitting element by means of switching control | |
| WO2015056905A1 | Light-emitting element driving circuit and operating method therefor |