| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 2 | |
| #2 | United States | 2 | |
| #3 | Australia | 1 | |
| #4 | Canada | 1 | |
| #5 | Germany | 1 | |
| #6 | France | 1 | |
| #7 | United Kingdom | 1 | |
| #8 | Italy | 1 | |
| #9 | Sweden | 1 | |
| #10 | Singapore | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Foundations and excavations |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nakashima Shiro | 11 |
| #2 | Nakanishi Wataru | 10 |
| #3 | Wataru Nakanishi | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN1131222A | Method for all-round improved ground body formation and its device | |
| US5234289A | Device for forming modified ground |