| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | China | 2 | |
| #3 | Japan | 2 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | United Kingdom | 1 | |
| #6 | Hong Kong | 1 | |
| #7 | Singapore | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Punching metal | |
| #2 | Pipes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tsuzuki Toshio | 9 |
| #2 | Tsuzuki Toshio C O Tannan Co L | 1 |
| #3 | Abe Mitsuji | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JPH05161935A | Thread rolling machine of top plate of metallic drum container | |
| CN1063631A | Method of and apparatus for manufacturing top plate for metallic drum container | |
| JPH05344A | Method and device for manufacturing top plate for metallic drum can | |
| US4819968A | Pipe joint |