Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6101437 | Operation control device for three-joint excavator | Morio Oshina, Mitsuo Sonoda, Eiji Egawa | 2000-08-08 |
| 6079131 | Operation control device for three-joint type excavator | Morio Oshina, Mitsuo Sonoda, Eiji Egawa | 2000-06-27 |