| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Italy | 2 | |
| #3 | Belgium | 1 | |
| #4 | Canada | 1 | |
| #5 | Czechoslovakia | 1 | |
| #6 | Germany | 1 | |
| #7 | Denmark | 1 | |
| #8 | Spain | 1 | |
| #9 | Finland | 1 | |
| #10 | France | 1 | |
| #11 | United Kingdom | 1 | |
| #12 | Greece | 1 | |
| #13 | Hungary | 1 | |
| #14 | Iceland | 1 | |
| #15 | Norway | 1 | |
| #16 | WIPO (World Intellectual Property Organization) | 1 |
| # | Name | Total Patents |
|---|---|---|
| #1 | Suzuki Hirotsugu | 17 |
| #2 | Terajima Michio | 13 |
| #3 | Hirotsugu Suzuki | 2 |
| #4 | Michio Terajima | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2011010439A1 | Smoke particle removal device | |
| ITMI910217D0 | Method of introducing water from a pure hot spring transported directly from a thermal water source into a tub at a thermal spa and for maintaining the purity and freshness of the water introduced | |
| US5100563A | Method for introducing pure hot-spring water directly transported from a spa into a spa house bath and for maintaining the purity and freshness of the introduced water |