| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 10 | |
| #2 | United States | 8 | |
| #3 | EPO (European Patent Office) | 6 | |
| #4 | Republic of Korea | 2 | |
| #5 | Taiwan | 2 | |
| #6 | Australia | 1 | |
| #7 | China | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Control | |
| #3 | Machines | |
| #4 | Measurement |
| # | Name | Total Patents |
|---|---|---|
| #1 | Takeda Masaru | 13 |
| #2 | Maekawa Shinji | 7 |
| #3 | Oi Akira | 7 |
| #4 | Miyata Kazuyuki | 7 |
| #5 | Okada Shinji | 4 |
| #6 | Kagomoto Mitsumasa | 4 |
| #7 | Miyazaki Koji | 4 |
| #8 | Nishimura Yasuo | 3 |
| #9 | Takada Koji | 3 |
| #10 | Ichitsubo Atsushi | 3 |
| Publication | Filing date | Title |
|---|---|---|
| WO2020067185A1 | Container valve | |
| EP3081843A1 | Non-return valve mechanism and one-way valve device | |
| CN107076361A | Container value | |
| WO2015037708A1 | Continuity detection device, valve, and container valve | |
| EP2453333A1 | Valve apparatus including pressure-reducing valve | |
| WO2005068885A1 | Valve device |