| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 5 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | United States | 3 | |
| #4 | China | 2 | |
| #5 | Japan | 2 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Control | |
| #3 | Civil engineering | |
| #4 | Furniture and games | |
| #5 | Telecommunications | |
| #6 | IT methods for management | |
| #7 | Chemical engineering | |
| #8 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Water treatment | |
| #2 | Control or regulating systems | |
| #3 | Sanitary equipment | |
| #4 | Selecting | |
| #5 | Installations for obtaining water | |
| #6 | Data processing systems | |
| #7 | Sewers | |
| #8 | Separation | |
| #9 | Non-positive-displacement pumps | |
| #10 | Domestic plumbing installations |
| # | Name | Total Patents |
|---|---|---|
| #1 | Okudera Shohei | 14 |
| #2 | Nishio Manabu | 11 |
| #3 | Kitagawa Riki | 11 |
| #4 | Yamada Ryo | 11 |
| #5 | Yamada Makoto | 2 |
| #6 | Kitagawa Tsutomu | 2 |
| #7 | Suma Hiroki | 1 |
| #8 | Emura Yumi | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2021010378A1 | Water absorption device | |
| WO2021010377A1 | Liquid treatment apparatus and liquid purification system | |
| WO2019088304A1 | Water purification system | |
| WO2019059310A1 | Information processing device | |
| WO2019059309A1 | Water treatment system | |
| EP3428126A1 | Water treatment device management system and domestic water treatment device |