Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5676660 | Absorbent product including absorbent layer treated with surface active agent | Shingo Mukaida, Kenji Tanaka | 1997-10-14 |
| 5672419 | Water absorbent composition and material | Shingo Mukaida, Kenji Tanaka | 1997-09-30 |