Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10068883 | Optical coupling device | Hisami Saito | 2018-09-04 |
| 9859260 | Optical coupling device having a drive circuit on a ground frame to drive a light emitting element on a power frame | Yuichi Tagami, Toyoaki Uo | 2018-01-02 |