Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641465 | Polishing method, polishing device, glass substrate for magnetic recording medium, and magnetic recording medium | — | 2003-11-04 |
| 6595028 | Chemical reinforced glass substrate having desirable edge profile and method of manufacturing the same | Hideki Isono | 2003-07-22 |
| 6537648 | Substrate for an information recording medium, information recording medium using the substrate and method of producing the substrate | Kouji Takahashi, Hiroshi Tomiyasu, Genshichi Hata, Tomotaka Yokoyama | 2003-03-25 |