| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 4 | |
| #2 | China | 3 | |
| #3 | EPO (European Patent Office) | 3 | |
| #4 | United States | 3 | |
| #5 | Republic of Korea | 2 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Measurement | |
| #3 | Chemical engineering | |
| #4 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Steam traps | |
| #2 | Separation | |
| #3 | Measuring light | |
| #4 | Measuring temperature | |
| #5 | Water treatment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Katsura Tsutomu | 15 |
| #2 | Masutani Tomohiro | 5 |
| Publication | Filing date | Title |
|---|---|---|
| WO2019203235A1 | Monitoring system | |
| WO2017175744A1 | Nozzle-type steam trap | |
| CN105518373A | Nozzle-type steam trap | |
| WO2013089126A1 | Water purifying device, and maintenance system for same |