Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5370917 | Magnetic recording disc comprising magnetic powder and a binder in a container which includes a nonwoven fabric liner comprising polypropylene and rayon fibers | Toshio Kawamata, Satoru Hayakawa | 1994-12-06 |
| 5300314 | Process for preparing a magnetic recording medium | Satoru Hayakawa, Toshio Kawamata | 1994-04-05 |