Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9857533 | Optical waveguide element, light-receiving device, optical communication device, optical modulator, optical resonator, and method for manufacturing optical waveguide element | Ryokichi Matsumoto, Kazuhiro Goi, Kensuke Ogawa | 2018-01-02 |
| 9857534 | Optical waveguide device having a light absorber for split out modes | Kensuke Ogawa, Kazuhiro Goi | 2018-01-02 |