| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 8 | |
| #2 | France | 2 | |
| #3 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Rotary pistons | |
| #2 | Internal-combustion piston engines | |
| #3 | Climate change mitigation in transportation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kunieda Eiichi | 10 |
| #2 | Kunieda Yoshiko | 10 |
| Publication | Filing date | Title |
|---|---|---|
| US4154208A | Rotary engine | |
| JPS5491810A | Gas seal of rotary machine | |
| US4155685A | Gas seal arrangement between rotor and housing | |
| FR2366453A1 | Sealing strip for rotor of rotary engine - uses leaf spring in bottom of groove to maintain contact with cylinder bore | |
| JPS5311213A | Gas seal for rotary engine | |
| JPS539907A | Gas seal for rotary engine | |
| JPS5284305A | Rotary engine | |
| JPS5284306A | Rotary engine | |
| JPS5276512A | Rotary engine | |
| JPS5267409A | Rotary engine | |
| JPS528206A | Rotary engine |