Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821893 | Method of manufacturing a substrate for information recording media | Kazuishi Mitani, Yasuhiro Saito | 2004-11-23 |
| 6743529 | Process for producing glass substrate for magnetic recording medium and glass substrate for magnetic recording medium obtained by the same | Yasuhiro Saito, Hiroshi Ikeda, Kazuishi Mitani | 2004-06-01 |