Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841401 | Amorphous magnetic head | Mitsuo Satomi, Eisuke Sawai, Masaru Higashionji, Hiroshi Sakakima, Kenji Kondo | 1989-06-20 |
| 4837080 | Magnetic recording mediums for high density recording comprising an improved structure of a magnetic layer | — | 1989-06-06 |