Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7757658 | Nagata cycle rotary engine | Sumiyuki Nagata | 2010-07-20 |
| 6651609 | Nagata cycle rotary engine | Sumiyuki Nagata | 2003-11-25 |
| 5937820 | Four cycle rotary engine | Sumiyuki Nagata | 1999-08-17 |