Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858043 | Magnetic head assembly for a flexible magnetic disk drive unit | Kazuhiro Kamei, Kazuhiko Honjyo | 1989-08-15 |
| 4842708 | Perpendicular magnetic recording medium, method for producing the same, and sputtering device | Kazuhiko Honjo, Takashi Tomie, Masahiko Naoe | 1989-06-27 |