| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Germany | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Republic of Korea | 2 | |
| #5 | France | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | Hong Kong | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Pipes | |
| #3 | Nails | |
| #4 | Frames | |
| #5 | Clutches and brakes | |
| #6 | Unspecified technologies | |
| #7 | Pistons and sealings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nagano Kenji | 9 |
| #2 | Takahashi Shoichiro | 4 |
| #3 | Takahashi Soichiro | 1 |
| #4 | Kenji Nagano | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP1496300A1 | Two-loop coiled type clamping device | |
| US5797168A | Two-loop coiled type clamping device | |
| US5581851A | Draw operating type clamping device | |
| US5375299A | Clamping device | |
| US5307541A | Clamping device | |
| GB2097249A | Locking device in a telescopic tubular tripod leg element assembly | |
| DE2829812A1 | LOCKING DEVICE FOR TELESCOPIC EXTENSIBLE AND RETRACTABLE FEET, IN PARTICULAR SUCH FOR TRIPOD TRIPODS |