| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 41 | |
| #2 | WIPO (World Intellectual Property Organization) | 2 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Electrical machinery and energy | |
| #3 | Transport | |
| #4 | Engines, pumps and turbines | |
| #5 | Mechanical elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Katano Koji | 43 |
| #2 | Hotta Akihisa | 6 |
| #3 | Yamagishi Norio | 6 |
| #4 | Sekine Hiroyuki | 4 |
| #5 | Nakamura Ikuhiro | 4 |
| #6 | Teshima Nobutaka | 3 |
| #7 | Masaki Daisuke | 2 |
| #8 | Mishima Takashi | 1 |
| #9 | Inagaki Toshiyuki | 1 |
| #10 | Arisawa Hiroshi | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2015061804A1 | Reactor unit | |
| US2013059221A1 | Fuel cell system and heating method by using heat from fuel cell |