| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 3 | |
| #2 | Australia | 2 | |
| #3 | Canada | 2 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | Finland | 1 | |
| #6 | Republic of Korea | 1 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Compounding processes | |
| #2 | Fillers | |
| #3 | Shaping of plastics | |
| #4 | Finishing work on buildings | |
| #5 | Foundations and excavations |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wakabayashi Masayuki | 6 |
| #2 | Nakatani Itsuki | 5 |
| #3 | Shimpo Keiji | 2 |
| #4 | Kanki Hiroaki | 2 |
| #5 | Morimatsu Hideki | 2 |
| #6 | Ebara Yukihisa | 2 |
| #7 | Yasuno Tateo | 1 |
| #8 | Amatsuji Satomichi | 1 |
| #9 | Kadota Takao | 1 |
| Publication | Filing date | Title |
|---|---|---|
| KR20020023557A | lightweight heap up earth structure | |
| US6063823A | Polystyrene resin foam and process for producing the foam body | |
| WO9107273A1 | Extruded foamed polystyrene sheet equipped with corrugated pattern and production method thereof | |
| AU7582287A | Method of flooring ground in a house |