| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 9 | |
| #2 | China | 4 | |
| #3 | Republic of Korea | 3 | |
| #4 | Canada | 2 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | Singapore | 1 | |
| #7 | United States | 1 | |
| #8 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Materials and metallurgy | |
| #3 | Chemical engineering | |
| #4 | Semiconductors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kiyama Ryukin | 8 |
| #2 | Hiruma Toshikazu | 5 |
| #3 | Sakuma Yukio | 5 |
| #4 | Nakano Katsuyuki | 4 |
| #5 | Morito Yoshihiro | 4 |
| #6 | Niisawa Kazuhiro | 3 |
| #7 | Nozaki Tadashi | 3 |
| #8 | Shimizu Kazuo | 3 |
| #9 | Sasazaki Katsuyuki | 3 |
| #10 | Nomura Etsuo | 3 |
| Publication | Filing date | Title |
|---|---|---|
| WO2013128536A1 | Method for separating rare earth elements from optical glass waste | |
| WO2010109556A1 | Water treatment method and water treatment system | |
| US2010224029A1 | Method for separation and recovery of noble metals |