Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4577077 | Surface smoothing method for disk-like recording medium | — | 1986-03-18 |
| 4548772 | Surface smoothing method for magnetic recording medium | — | 1985-10-22 |
| 4518626 | Process for preparing magnetic recording medium | Mikihiko Kato, Shigeo Komine, Kazuhiko Morita, Tsunehiko Sato | 1985-05-21 |