| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 15 | |
| #2 | Japan | 14 | |
| #3 | China | 6 | |
| #4 | EPO (European Patent Office) | 5 | |
| #5 | Taiwan | 3 | |
| #6 | WIPO (World Intellectual Property Organization) | 3 | |
| #7 | Hong Kong | 2 | |
| #8 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Machine tools | |
| #3 | Control |
| # | Technology | |
|---|---|---|
| #1 | Turning | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies | |
| #4 | Tools for connecting or disengaging | |
| #5 | Accessories for machine tools | |
| #6 | Milling | |
| #7 | Control or regulating systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sakamaki Akira | 40 |
| #2 | Sakamaki Kazuo | 26 |
| #3 | Taniguchi Tadashi | 13 |
| #4 | Sato Chokichi | 8 |
| #5 | Aoyagi Kazuki | 5 |
| #6 | Kazuo Sakamaki | 4 |
| #7 | Akira Sakamaki | 4 |
| #8 | Takizawa Koichi | 2 |
| #9 | Seki Tomokazu | 2 |
| #10 | Sakamaki Iwao | 2 |
| Publication | Filing date | Title |
|---|---|---|
| CN101189101A | Rotary tool | |
| US6824141B1 | Chuck device | |
| US6651534B1 | NC circular table and NC circular table apparatus | |
| US6022029A | Chuck assembly | |
| JPH08276308A | Chuck for tool | |
| JPH09234613A | Chuck device | |
| JPH09234612A | Chuck device | |
| JPH09216109A | Tool holding device | |
| KR100209547B1 | Chuck apparatus | |
| EP0700743A1 | Chuck apparatus | |
| JPH08323514A | Chucking device | |
| JPH08294808A | Tool holding device | |
| JPH08118119A | Chuck device | |
| JPH0890316A | Chuck device | |
| JPH0871818A | Chuck device | |
| JPH07195210A | Chuck device | |
| JPH0724613A | Tool chuck | |
| JPH05285757A | Table clamp mechanism in rotary table | |
| JPH06285707A | Collet for holding tool | |
| JPH04365504A | Chuck for tool |