Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9001279 | Polarization conversion device, polarization conversion unit, and projection type video apparatus | Mitsuru MIYABARA, Makoto Sakurai | 2015-04-07 |
| 8764197 | Polarization conversion element, polarization converting unit, and projecting apparatus | — | 2014-07-01 |
| 8657448 | Polarization converting element, polarization converting unit, and projection-type imaging device | Mitsuru MIYABARA, Makoto Sakurai | 2014-02-25 |
| 8300312 | Optical element | Akiko TAKESHITA | 2012-10-30 |
| 8279523 | Polarization conversion element and method for manufacturing the same | Kohei Yamada, Isamu Aoki | 2012-10-02 |
| 7855834 | Multilayered phase difference plate and projector | Masayuki Oto, Hiroshi Matsumoto | 2010-12-21 |
| 7705960 | Dust-proof glass, and electro-optic device and projection type image display device using the same | Akihiro Shimizu, Masayuki Oto | 2010-04-27 |