Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8439885 | Disposable diaper having a stool passing opening | Katsushi Sakano, Izumi Tashiro, Katsuhiko Sugiyama | 2013-05-14 |
| 8211076 | Disposable diaper | Katsuhiko Sugiyama, Izumi Tashiro | 2012-07-03 |
| 8211077 | Disposable pant-type diaper | Katsuhiko Sugiyama, Tomotsugu Miyoshi, Takeshi Niimi, Izumi Tashiro | 2012-07-03 |
| 7670325 | Disposable diaper | Katsuhiko Sugiyama, Izumi Tashiro | 2010-03-02 |
| 7566330 | Disposable diaper | Katsuhiko Sugiyama, Izumi Tashiro | 2009-07-28 |