Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5401121 | All-around type reinforcing and consolidating method in the ground and apparatus thereof | Wataru Nakanishi | 1995-03-28 |
| 5234289 | Device for forming modified ground | Wataru Nakanishi | 1993-08-10 |
| 5197828 | Method of forming modified ground | Wataru Nakanishi | 1993-03-30 |