| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 6 | |
| #2 | United States | 6 | |
| #3 | Australia | 3 | |
| #4 | Canada | 3 | |
| #5 | Germany | 3 | |
| #6 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Nails | |
| #2 | Unspecified technologies | |
| #3 | Making forged metal products | |
| #4 | Spring or inertia motors | |
| #5 | Metal-working | |
| #6 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sano Nariaki | 6 |
| #2 | Amano Tetsuo | 4 |
| #3 | Miyake Hidenori | 4 |
| #4 | Takemura Akira | 4 |
| #5 | Utsumi Tadao | 3 |
| #6 | Morita Kiyoshi | 3 |
| #7 | Shimizu Mituo | 3 |
| #8 | Shimizu Mitsuo | 2 |
| #9 | Miyake H | 1 |
| #10 | Fukutani Toshiaki | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JPH11325026A | Airtight fixing device | |
| JPH10176709A | Screw | |
| JPH06173925A | Screw | |
| JPH01284454A | Molding tool of drill point and molded goods formed by molding tool | |
| US4842467A | Concrete screw | |
| JPS588817A | Elastic washer | |
| JPS55120913A | Preventive device for eccentricity of screw blank of pinch pointer | |
| CA1110092A | Entering end portion of drill screw | |
| AU2756277A | Drill screw and die for producing same | |
| CA1063846A | Self-extruding fastener |