Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6430965 | Process for producing glass substrate for information recording medium and process for producing recording medium using said glass substrate | Jun Ozawa | 2002-08-13 |
| 6427489 | Process for producing glass substrate for information recording medium and process for producing recording medium using said glass substrate | Jun Ozawa | 2002-08-06 |