Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11079588 | Relay optical system, and optical system for rigid endoscope and rigid endoscope using the same | — | 2021-08-03 |
| 11067788 | Bright relay optical system, and optical system for rigid endoscope and rigid endoscope using the same | Tsutomu Uzawa | 2021-07-20 |