Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7958693 | Boom for excavation machine | Yasuyuki Oyamada, Keiichi Nishihara, Takahiro Ikeda, Masao Nagata, Saizou Kondou +1 more | 2011-06-14 |
| 7874392 | Excavating machine | Yasuyuki Oyamada, Takahiro Ikeda, Keiichi Nishihara, Masao Nagata, Saizou Kondou +1 more | 2011-01-25 |