Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7951442 | Thin film for reflection film or for semi-transparent reflection film, sputtering target and optical recording medium | Tomokazu Obata | 2011-05-31 |
| 7910190 | Thin film for reflection film or for semi-transparent reflection film, sputtering target and optical recording medium | Tomokazu Obata | 2011-03-22 |
| 7575714 | Silver alloy excellent in reflectance maintenance property and method for producing an optical recording medium | Tomokazu Obata | 2009-08-18 |
| 7413618 | Silver alloy for reflective film | Tomokazu Obata | 2008-08-19 |