| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Canada | 5 | |
| #3 | China | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Engines, pumps and turbines | |
| #3 | Chemical engineering | |
| #4 | Materials and metallurgy |
| # | Name | Total Patents |
|---|---|---|
| #1 | Iijima Masaki | 3 |
| #2 | Tsujita Takashi | 2 |
| #3 | Zenichi Yoshida | 1 |
| #4 | Hirokawa Kazuharu | 1 |
| #5 | Hyakutake Yoshinori | 1 |
| #6 | Uematsu Kazuo | 1 |
| #7 | Imai Tetsuya | 1 |
| #8 | Danno Minoru | 1 |
| #9 | Fukue Ichiro | 1 |
| #10 | Sugishita Hideaki | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3981278A | Protection apparatus for remotely controlled self-reversing marine engines |