| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Netherlands | 5 | |
| #2 | United States | 4 | |
| #3 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Shaping clay | |
| #2 | Foundations and excavations | |
| #3 | Shafts | |
| #4 | Hydraulic engineering | |
| #5 | Climate change adaptation technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tsuzuki Yoshiro | 2 |
| #2 | Yoshiro Tsuzuki | 2 |
| Publication | Filing date | Title |
|---|---|---|
| NL7908161A | Method for sealing joints in a tunnel wall | |
| US3671346A | Method of water sealing segments | |
| US3582034A | Mold for casting a breakwater concrete block | |
| GB1068766A | Apparatus of moulding flasks for manufacturing concrete members having cruciform cross section | |
| US3316724A | Concrete pile joint and method of assembly |