Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8022564 | Speed reducer for use in yaw drive apparatus for wind power generation apparatus, and yaw drive method and apparatus for wind power generation apparatus using the speed reducer | Osamu Nohara, Katsuhiko Yokoyama | 2011-09-20 |
| 6874857 | Hydraulic circuit for traveling | — | 2005-04-05 |
| 6648091 | Hydraulic circuit for traveling | — | 2003-11-18 |
| 6447420 | Power transmission mechanism | Tatsuya Narumi | 2002-09-10 |
| 6336323 | Brake for a hydraulic motor | Tatsuya Narumi | 2002-01-08 |