Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11190292 | Wavelength converter and optical transmission device that includes wavelength converter | Shigeki Watanabe, Takeshi Hoshida | 2021-11-30 |
| 11163119 | Wavelength conversion device and method of performing wavelength conversion | Tomohiro Yamauchi, Goji Nakagawa, Takeshi Hoshida | 2021-11-02 |
| 10972188 | Transmission apparatus and transmission method | Shota Mori, Tomoaki Takeyama | 2021-04-06 |
| 10955727 | Wavelength converter and transmission apparatus | Goji Nakagawa, Takeshi Hoshida, Masaaki Kawai | 2021-03-23 |
| 10948802 | Wavelength converter apparatus and method of performing wavelength conversion | Goji Nakagawa, Takeshi Hoshida | 2021-03-16 |
| 10884359 | Automatic cleaning image forming apparatus and method of controlling image forming apparatus | Yasunari Miyazaki | 2021-01-05 |