Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6973788 | Steam engine | Shuzo Oda, Shinichi Yatsuzuka, Toshiyuki Morishita | 2005-12-13 |
| 6945202 | Free piston engine and power generation system therewith | Takashi Kaneko, Wataru Mii, Kazuhiro Ojika | 2005-09-20 |
| 6931852 | Steam engine | Shinichi Yatsuzuka | 2005-08-23 |