Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9817294 | Optical modulation device | Hiroki Ishihara, Kensuke Ogawa, Kenji Oda, Hiroyuki Kusaka, Ryokichi Matsumoto +1 more | 2017-11-14 |
| 9557482 | High-order polarization conversion device, optical waveguide device, and DP-QPSK modulator | Akira Oka, Kensuke Ogawa, Hiroyuki Kusaka | 2017-01-31 |