| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Republic of Korea | 5 | |
| #2 | United States | 4 | |
| #3 | WIPO (World Intellectual Property Organization) | 3 | |
| #4 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Control |
| # | Technology | |
|---|---|---|
| #1 | Games | |
| #2 | Coin-freed |
| # | Name | Total Patents |
|---|---|---|
| #1 | Saeki Tomoya | 13 |
| #2 | Taki Hiroko | 9 |
| #3 | Oomoto Hiroshi | 9 |
| Publication | Filing date | Title |
|---|---|---|
| KR20130121661A | Life and death determination system of baduk | |
| KR20120093167A | Life and death judgment system for go game | |
| EP1854521A1 | Go playing system |