| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Republic of Korea | 5 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | Japan | 2 | |
| #4 | China | 1 | |
| #5 | Taiwan | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Thermal processes | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Casting metal | |
| #2 | Details of furnaces | |
| #3 | Furnaces | |
| #4 | Metal production and refining | |
| #5 | Foundry moulding | |
| #6 | Spraying devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Yu Chai-Long | 8 |
| #2 | Yu Chai Long | 5 |
| Publication | Filing date | Title |
|---|---|---|
| TWI657879B | The utility model discloses a metal die-casting machine nozzle device capable of uniformly spraying |