Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871625 | Synthetic lubricant for lubricating thin film and magnetic recording medium | Takateru Dekura | 1989-10-03 |
| 4835640 | Magnetic head having a stabilized zirconia slider | Shiro Murakami, Yukiharu Takada, Yoshiharu Koike | 1989-05-30 |