| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Taiwan | 15 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Civil engineering | |
| #4 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Shaping of plastics | |
| #3 | Unspecified technologies | |
| #4 | Certain plastics | |
| #5 | Preparation of materials | |
| #6 | Sewers | |
| #7 | Foundations and excavations | |
| #8 | Building materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Yokoshima Yasuhiro | 6 |
| #2 | Kamiyama Takao | 5 |
| #3 | Endo Shigeru | 4 |
| #4 | Aoki Hiroyuki | 2 |
| Publication | Filing date | Title |
|---|---|---|
| TW229256B | Resin injecting method for pipe liner constructing element and its patching method |