Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5318838 | Magnetic recording medium comprising ferromagnetic particles, binder resins and phenyl phosphonic acid | Akihiro Matsufuji, Kiyomi Ejiri, Takao Ohya | 1994-06-07 |
| 5300343 | Magnetic recording medium in the form of a floppy disc having a magnetic layer with a specified surface feature | Yasushi Endo, Kunihiko Sano | 1994-04-05 |