Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873010 | Spindle-like magnetic iron oxide particles and process for producing the same | Atsushi Takedoi, Hiroyuki Kondo, Masaru Isoai, Yoshitaka Yoshinaga, Tosiharu Harada +3 more | 1989-10-10 |