Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8439885 | Disposable diaper having a stool passing opening | Izumi Tashiro, Katsuhiko Sugiyama, Kahori Suzuki | 2013-05-14 |
| 7785310 | Disposable diaper | Katsuhiko Sugiyama, Izumi Tashiro, Tomotsugu Miyoshi | 2010-08-31 |