Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7971436 | Rotary steam engine | — | 2011-07-05 |
| 7930875 | Jet-type steam engine | Makoto Abe | 2011-04-26 |
| 7913493 | Rotary displacement steam engine | Tomohisa Sako, Makoto Abe | 2011-03-29 |
| 7874541 | Proportional solenoid and flow control valve employing thereof | Makoto Abe, Hiroyuki Kawanishi, Tomohisa Sako | 2011-01-25 |