Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868046 | Magnetic recording mediums comprising a modified vinyl chloride resin binder in at least a magnetic recording layer | Hiroto Nagamine | 1989-09-19 |
| 4720413 | Magnetic recording medium having a back coat layer | Akira Horiguchi, Isao Sasaki | 1988-01-19 |
| 4707403 | Magnetic recording medium having an improved magnetic recording layer | Akira Horiguchi, Isao Sasaki | 1987-11-17 |
| 4615930 | Magnetic recording media having an undercoat as islands | Yukio Matsumoto | 1986-10-07 |