Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4754264 | Water content detecting device for diaper | Shigeru Okada, Toshio Ikegawa | 1988-06-28 |
| 4704108 | Water content sensing and informing system for a disposable diaper | Shigeru Okada | 1987-11-03 |
| 4653491 | Water content sensing and informing system for a disposable diaper | Shigeru Okada | 1987-03-31 |