Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7303360 | Underwater inspecting and repairing system | Tetsuro Nakagawa, Yasuhiro Yuguchi, Koichi Soma, Mitsuaki Shimamura | 2007-12-04 |
| 4545702 | Boring-injection device, method for improving ground by means of the device and method for investigating ground state by means of the device | Sakae Sano, Hisashi Kitajima, Tadashi Nishio | 1985-10-08 |
| 4514112 | Method for injecting grouting agent and apparatus for conducting the method | Sakae Sano, Hisashi Kitajima, Tadashi Nishio | 1985-04-30 |