| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 3 | |
| #2 | Brazil | 2 | |
| #3 | China | 2 | |
| #4 | Republic of Korea | 2 | |
| #5 | Russian Federation | 2 | |
| #6 | United States | 2 | |
| #7 | WIPO (World Intellectual Property Organization) | 2 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Batteries | |
| #2 | Reduction of greenhouse gas emissions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ohkawa Hiroshi | 13 |
| #2 | Hiroshi Ohkawa | 2 |
| Publication | Filing date | Title |
|---|---|---|
| WO2017090636A1 | Molten sodium battery and partition wall for molten sodium battery |