Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6537648 | Substrate for an information recording medium, information recording medium using the substrate and method of producing the substrate | Kouji Takahashi, Takemi Miyamoto, Hiroshi Tomiyasu, Tomotaka Yokoyama | 2003-03-25 |