Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5395696 | Magnetic recording medium having a lubricant layer of a fluoroalkyl sulfo-compound | Toshio Ishida, Hideomi Watanabe, Tsutomu Okita, Kazuyuki Usuki | 1995-03-07 |
| 5064687 | Method for making magnetic recording media | Akihiro Matsufuji, Kiyomi Ejiri, Mikio Ohno, Masatoshi Kiyama | 1991-11-12 |
| 4946534 | Process for the preparation of magnetic recording disk | Tadashi Ishiguro, Masaaki Fujiyama | 1990-08-07 |
| 4791021 | Magnetic recording medium | Toshihiko Miura, Hiroaki Araki | 1988-12-13 |
| 4661421 | Method for preparing a magnetic recording medium | Tadashi Ishikuro, Masataka Ohta, Ryuji Shirahata | 1987-04-28 |