Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6230090 | Interference prevention system for two-piece boom type hydraulic excavator | Ei Takahashi, Yusuke Kajita | 2001-05-08 |
| 5632190 | Burglarproof device for hydraulic machine | Osamu Tomikawa, Shigehiro Yoshinaga, Toichi Hirata | 1997-05-27 |
| 5497805 | Drive control system for hydraulic machine | Hidefumi Takegahara, Toichi Hirata | 1996-03-12 |
| 5048296 | Anti-vibration apparatus in a hydraulic system for boom cylinder of working apparatus | Osamu Tomikawa, Toichi Hirata | 1991-09-17 |
| 4505248 | Hot-wire air flowmeter control system for engine | Haruo Yuzawa | 1985-03-19 |