Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11892438 | Optical densitometer and optical waveguide | Takaaki FURUYA, Toshiro Sakamoto | 2024-02-06 |
| 11686679 | Optical waveguide and optical concentration measuring apparatus wherein evanescent wave interacts with gas or liquid through the protection film of the waveguide | Toshiro Sakamoto | 2023-06-27 |
| 11391670 | Optical waveguide and optical concentration measuring apparatus | Toshiro Sakamoto | 2022-07-19 |
| 11313797 | Optical waveguide and optical concentration measuring apparatus | Takaaki FURUYA, Toshiro Sakamoto | 2022-04-26 |
| 11313796 | Optical waveguide and optical concentration measuring apparatus comprising a support with a shifted connecting portion | Toshiro Sakamoto | 2022-04-26 |
| 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 |
| 10438951 | Semiconductor device and manufacturing method thereof | Shuntaro Fujii, Shohei HAMADA | 2019-10-08 |