Issued Patents 2011
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8031401 | Laminated half-wave plate, polarizing converter, polarized light illumination device and light pickup device | — | 2011-10-04 |
| 8000208 | Laminated wave plate and optical pickup device using the same | — | 2011-08-16 |
| 7995276 | Laminated half-wave plate, polarizing converter, polarized light illumination device and light pickup device | — | 2011-08-09 |
| 7986608 | Laminated wave plate and optical pickup device using the same | — | 2011-07-26 |
| 7936508 | Laminated half-wave plate, polarizing converter, polarized light illumination device and light pickup device | — | 2011-05-03 |
| 7894321 | Laminated wave plate and optical pickup using the same | — | 2011-02-22 |