Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5573583 | Method of activation of clay and activated clay | — | 1996-11-12 |
| 5491248 | Readily dispersible bentonite | Takeo Sawada | 1996-02-13 |
| 5292908 | Modified bentonite | Masanobu Onikata | 1994-03-08 |