| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Republic of Korea | 6 | |
| #2 | Japan | 2 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | China | 1 |
| # | Industry | |
|---|---|---|
| #1 | Telecommunications | |
| #2 | Digital networks | |
| #3 | Control | |
| #4 | Audio-visual technology | |
| #5 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Broadcast communication | |
| #2 | Digital information transmission | |
| #3 | Alarm systems | |
| #4 | Transmission | |
| #5 | Climate change mitigating computer technologies | |
| #6 | Television |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kim Jong Un | 4 |
| #2 | Kim Sanggyu | 2 |
| #3 | Kim Hyun Tae | 2 |
| #4 | Kim Sang Gyu | 1 |
| #5 | Kim Hyungtae | 1 |
| #6 | Kim Hyun-Tae | 1 |
| Publication | Filing date | Title |
|---|---|---|
| KR102058862B1 | Broadcasting apparatus for providing multiple audio source | |
| KR102049464B1 | Broadcasting apparatus for evergy saving | |
| KR101864870B1 | Public address apparatus | |
| KR101864879B1 | Public address apparatus | |
| WO2018079880A1 | Public address device using can communication | |
| KR101757157B1 | Public address apparatus using CAN communication | |
| JP2018074358A | Public address device using CAN communication | |
| KR101743048B1 | Integrated broadcasting system using CAN communication |