Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6244048 | Hydraulique drive device | Sotaro Tanaka, Gen Yasuda, Masami Ochiai, Yusaku Nozawa | 2001-06-12 |
| 5873245 | Hydraulic drive system | Masami Ochiai | 1999-02-23 |
| 5460001 | Flow control system | Masami Ochiai | 1995-10-24 |
| 4813447 | Flow control valve apparatus | Ken Ichiryu, Takashi Kanai, Masami Ochiai, Yuusaku Nozawa | 1989-03-21 |