Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5228809 | Consolidating agent injecting apparatus and injecting apparatus for improving ground | Hiroshi Yoshida, Mitsuhiro Shibazaki, Hiroaki Kubo | 1993-07-20 |
| 5160220 | Method of improving ground of large area | Hiroshi Yoshida, Mitsuhiro Shibazaki, Hiroaki Kubo | 1992-11-03 |
| 5123782 | Method of improving ground of large area | Hiroshi Yoshida, Mitsuhiro Shibazaki, Hiroaki Kubo | 1992-06-23 |
| 5006017 | Method for improving ground of large section area | Hiroshi Yoshida, Mitsuhiro Shibazaki, Hiroaki Kubo | 1991-04-09 |