Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6782717 | Method for manufacturing glass substrate of information recording medium | Yasuhiro Saito, Kazuishi Mitani, Koji Okuhata, Toshiaki Hashimoto | 2004-08-31 |
| 6715318 | Glass substrate for information recording media and manufacturing method thereof | Kazuishi Mitani, Yasuhiro Saito | 2004-04-06 |