| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 5 | |
| #2 | Italy | 2 | |
| #3 | Australia | 1 | |
| #4 | Germany | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | France | 1 | |
| #7 | United Kingdom | 1 | |
| #8 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Implantable devices | |
| #2 | Object sterilising | |
| #3 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nakano Tadao | 10 |
| #2 | Tadao Nakano | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JPS61258001A | Disposable diaper | |
| JPS61222448A | Napkin for menses | |
| JPS6053144A | Sanitary napkin | |
| JPS5867258A | Sanitary napkin | |
| JPS55146154A | Sanitary napkin |