Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5604015 | Non-magnetic undercoat layer for magnetic recording medium, magnetic recording medium and non-magnetic particles | Kazuyuki Hayashi, Keisuke Iwasaki, Yasuyuki Tanaka, Minoru Ohsugi, Hiroko Morii +2 more | 1997-02-18 |