| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Australia | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Republic of Korea | 2 | |
| #5 | WIPO (World Intellectual Property Organization) | 2 | |
| #6 | Canada | 1 | |
| #7 | New Zealand | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Dredging | |
| #2 | Scaffolding | |
| #3 | Sawing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tagawa Itsuo | 14 |
| #2 | Kanno Samon | 2 |
| #3 | Kozaki Takaharu | 1 |
| #4 | Kanari Yukiharu | 1 |
| Publication | Filing date | Title |
|---|---|---|
| AU5067598A | Building crusher and water-supply system for the crusher | |
| KR100207869B1 | Crusher | |
| US4890798A | Structure crushing equipment |