| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Republic of Korea | 4 | |
| #2 | WIPO (World Intellectual Property Organization) | 3 | |
| #3 | China | 2 | |
| #4 | EPO (European Patent Office) | 2 |
| # | Industry | |
|---|---|---|
| #1 | Telecommunications | |
| #2 | Digital networks | |
| #3 | IT methods for management | |
| #4 | Control | |
| #5 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Digital information transmission | |
| #2 | Data processing systems | |
| #3 | Wireless communication networks | |
| #4 | Secret communication | |
| #5 | Transmission | |
| #6 | Registering devices | |
| #7 | Radio navigation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Yim Chang Soon | 10 |
| #2 | Yim Chang-Soon | 1 |
| Publication | Filing date | Title |
|---|---|---|
| KR102097577B1 | System for controlling IoT gate using sound wave communication | |
| KR101840013B1 | Proximity payment system using inaudible sound wave technology | |
| KR101568314B1 | Apparatus and method for sound wave communication | |
| KR101572151B1 | Apparatus for providing advertisement contents with position information using sound wave and method for providing the same |