| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | EPO (European Patent Office) | 4 | |
| #3 | China | 2 | |
| #4 | Australia | 1 | |
| #5 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Environmental technology | |
| #3 | Machines | |
| #4 | Transport | |
| #5 | Machine tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Fukazawa Tetsuo | 7 |
| #2 | Toyohara Makoto | 3 |
| #3 | Kamata Kenkichi | 2 |
| #4 | Ikuta Shiro | 2 |
| #5 | Yamamoto Hisashi | 2 |
| #6 | Chin Chugen | 2 |
| #7 | Fukushima Takeshi | 2 |
| #8 | Fukasawa Tetsuo | 1 |
| #9 | Sirakuma Hisayosi | 1 |
| #10 | Hisashi Yamamot | 1 |
| Publication | Filing date | Title |
|---|---|---|
| KR20080065900A | Casing for sludge pump | |
| US5558502A | Turbo pump and supply system with the pump | |
| CN1120128A | Blade used in fluid mechanism and fluid mechanism using same |