Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7140203 | Method for manufacturing glass substrate of information recording medium | Yasuhiro Saito, Kazuishi Mitani, Koji Okuhata, Toshiaki Hashimoto | 2006-11-28 |
| 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 |
| 6475599 | Substrate for information recording media | Yasuhiro Saito, Kazuishi Mitani, Yoshihiro Matsuno, Kazuaki Kanai | 2002-11-05 |