Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11762072 | Optical testing apparatus and method of testing optical measuring instrument | Takao Sakurai | 2023-09-19 |
| 11635374 | Optical testing apparatus | Shin Masuda, Takao Sakurai, Hidenobu Matsumura, Takao Seki | 2023-04-25 |