| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 6 | |
| #2 | Canada | 2 | |
| #3 | United States | 2 | |
| #4 | China | 1 | |
| #5 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Special furnaces and ovens | |
| #2 | Details of furnaces | |
| #3 | Furnaces |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sakamoto Hidesato | 11 |
| #2 | Sakamoto Hidasato | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JPH0339413A | Heating furnace apparatus | |
| JPH0336492A | Door device of heating furnace | |
| JPH0250080A | Furnace | |
| JPS645739A | Work arranging and supplying device | |
| JPS6327335A | Workpiece aligning and feeding device | |
| JPS6191485A | Furnace |