Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7500904 | Glass substrate for information recording medium and method for producing same | Akihide Minami, Koichi Suzuki | 2009-03-10 |
| 7429209 | Method of polishing a glass substrate for use as an information recording medium | Koichi Suzuki, Akihide Minami | 2008-09-30 |
| 7300335 | Glass substrate for data recording medium, manufacturing method thereof and polishing pad used in the method | Hirokazu Tajima | 2007-11-27 |
| 6852003 | Method of manufacturing glass substrate for data recording medium | Hirokazu Tajima | 2005-02-08 |