Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8488231 | Generator of polarization entangled photon pairs and method of generating the same | Ryosuke Shimizu | 2013-07-16 |
| 8173982 | Non-degenerate polarization-entangled photon pair generation device and non-degenerate polarization-entangled photon pair generation method | Ryosuke Shimizu, Shigehiro Nagano | 2012-05-08 |
| 7706425 | Littrow external oscillator semiconductor laser optical axis deviation correction method and device | Akifumi Takamizawa | 2010-04-27 |
| 7683361 | Method for generating quantum-entangled photon pairs | Tadashi Itoh | 2010-03-23 |
| 7652770 | Optical nonliner evaluation device and optical switching element | Ryosuke Shimizu, Nobuyuki Matsuda | 2010-01-26 |
| 7570419 | Quantum entanglement photon-pair producing device and quantum entanglement photon pair producing method | Ryosuke Shimizu | 2009-08-04 |