Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10422820 | Voltage sensor | Makoto Ishii, Minoru Sasaki | 2019-09-24 |
| 10401394 | Voltage sensor | Makoto Ishii, Minoru Sasaki | 2019-09-03 |
| 10168483 | Method for connecting optical waveguide and optical fiber, semiconductor optical device, and method for manufacturing semiconductor optical device having optical fiber connected thereto | Ryokichi Matsumoto | 2019-01-01 |