Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5692427 | Flow reinforcement directional control valve for a hydraulic circuit | Nobumi Yoshida, Tadao Karakama | 1997-12-02 |
| 5673557 | Displacement control system for variable displacement type hydraulic pump | Nobumi Yoshida, Tadao Karakama | 1997-10-07 |