| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 5 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | United States | 3 | |
| #4 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Punching metal | |
| #2 | Making metal sheets |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kaneko Toshio | 10 |
| #2 | Kaneko Toshio C Ok K Asahikinz | 1 |
| #3 | Kaneko Toshio C O K K Asahi Ki | 1 |
| #4 | Kaneko Toshio C O Kabushiki Ka | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JPH03216217A | Manufacture and device of bent pipe | |
| US4875353A | Method and apparatus for manufacturing curved pipe | |
| JPH02121721A | Manufacture of bent pipe and its apparatus | |
| JPH01113126A | Method and device for manufacturing bent pipe | |
| US4759206A | Method and apparatus for manufacturing curved pipe | |
| JPS5199660A | Tanchokukan kara tankyokukan o seikei suru hoho |