Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857417 | Cobalt-containing iron oxide magnetic particles and method for the preparation of the same | Haruo Andoh, Junichi Hirata | 1989-08-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857417 | Cobalt-containing iron oxide magnetic particles and method for the preparation of the same | Haruo Andoh, Junichi Hirata | 1989-08-15 |