Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842832 | Ultra-fine spherical particles of metal oxide and a method for the preparation thereof | Hakuai Inoue | 1989-06-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842832 | Ultra-fine spherical particles of metal oxide and a method for the preparation thereof | Hakuai Inoue | 1989-06-27 |