Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6502499 | Hydraulic recovery system for construction machine and construction machine using the same | Naoto Sannomiya | 2003-01-07 |
| 6244048 | Hydraulique drive device | Gen Yasuda, Masami Ochiai, Yusaku Nozawa, Hideyo Kato | 2001-06-12 |
| 5839397 | Engine cooling system and construction machine | Shigehisa Funabashi, Yoshihiro Takada, Masatoshi Watanabe, Shinichi Shimode, Yoshio Tanito +4 more | 1998-11-24 |
| 4571941 | Hydraulic power system | Yukio Aoyagi, Eiki Izumi, Takeshi Yamaguchi | 1986-02-25 |
| 4561250 | Hydraulic drive system having a plurality of prime movers | Yukio Aoyagi, Eiki Izumi, Takeshi Yamaguchi | 1985-12-31 |
| 4534268 | Hydraulic fluid circuit of hydraulic shovel | Takashi Yagyu, Takeshi Yamaguchi, Yasuo Sakaki | 1985-08-13 |
| 4504185 | Hydraulic circuit of hydraulic power shovel | Takashi Yagyu, Takeshi Yamaguchi, Yasuo Sakaki | 1985-03-12 |