Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5429078 | Internal combustion engine having rotary engine body | Hiroyasu Tanigawa, Kazunaga Tanigawa | 1995-07-04 |
| 5230307 | Internal combustion engine having rotary engine body | Hiroyasu Tanigawa, Kazunaga Tanigawa | 1993-07-27 |
| 5133305 | Internal combustion engine having rotary engine body | Hiroyasu Tanigawa, Kazunaga Tanigawa | 1992-07-28 |