Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7913493 | Rotary displacement steam engine | Yasushi Yamamoto, Makoto Abe | 2011-03-29 |
| 7874541 | Proportional solenoid and flow control valve employing thereof | Makoto Abe, Yasushi Yamamoto, Hiroyuki Kawanishi | 2011-01-25 |