| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 5 | |
| #2 | Japan | 3 | |
| #3 | United States | 3 | |
| #4 | Germany | 2 | |
| #5 | France | 2 | |
| #6 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Mechanical elements | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Nails | |
| #2 | Making forged metal products | |
| #3 | Thread cutting | |
| #4 | Unspecified technologies | |
| #5 | Shafts | |
| #6 | Tools for connecting or disengaging | |
| #7 | Forging | |
| #8 | Making screws |
| # | Name | Total Patents |
|---|---|---|
| #1 | Shinjo Katsumi | 13 |
| #2 | Nakayama Hiroshi | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA2008383A1 | Breakable composite drill screw | |
| US3948141A | Load indicating washer | |
| CA953859A | Method of producing clinch nut blanks | |
| GB1294482A | Nut-tapping apparatus |