Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8075975 | Optical recording medium and method for manufacturing the same | Takemitsu Sakai, Etsuro Ikeda | 2011-12-13 |
| 7924694 | Write-once type optical recording medium and fabrication method thereof | Etsuro Ikeda, Fuminori Takase | 2011-04-12 |