Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839318 | Method for production of finely porous article using smectite mineral as main component | Kaoru Kawase, Shozo Iida | 1989-06-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839318 | Method for production of finely porous article using smectite mineral as main component | Kaoru Kawase, Shozo Iida | 1989-06-13 |