Issued Patents 2022
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11353399 | Optical waveguide, optical concentration measuring device, and method for manufacturing optical waveguide | Toshiro Sakamoto | 2022-06-07 |
| 11313797 | Optical waveguide and optical concentration measuring apparatus | Tatsushi YAGI, Toshiro Sakamoto | 2022-04-26 |
| 11280729 | Optical density measuring apparatus and optical waveguide | Toshiro Sakamoto | 2022-03-22 |