| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 6 | |
| #2 | United States | 2 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | China | 1 | |
| #5 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Electrical machinery and energy | |
| #3 | Transport | |
| #4 | Materials and metallurgy |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kachi Naoyoshi | 12 |
| Publication | Filing date | Title |
|---|---|---|
| JP2014096223A | Fuel cell and fuel cell system | |
| KR20140072874A | Composite active material for lithium secondary batteries and method for producing same | |
| JP2013120680A | Water electrolysis hybrid storage battery | |
| JP2012155910A | Underwater traveling body | |
| JP2012129048A | Air secondary battery | |
| JP2012064314A | Air secondary battery | |
| JP2012015016A | Air secondary battery |