| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | Republic of Korea | 2 | |
| #4 | Taiwan | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Thread cutting | |
| #2 | Unspecified technologies | |
| #3 | Grinding or polishing devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sawabe Teruo | 10 |
| #2 | Yokoyama Isao | 6 |
| #3 | Sato Kazutoshi | 6 |
| #4 | Fujimura Kazuteru | 2 |
| #5 | Yamada Masao | 1 |
| Publication | Filing date | Title |
|---|---|---|
| TW201143943A | Thread-forming screw tap for thin wall material | |
| US5318393A | Tap |