Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11209361 | Optical density measuring apparatus and optical waveguide | Toshiro Sakamoto | 2021-12-28 |
| 10928318 | Optical waveguide and optical concentration measuring apparatus | Takaaki FURUYA, Toshiro Sakamoto | 2021-02-23 |