Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10784808 | Variable speed generator-motor apparatus and variable speed generator-motor system | Osamu Nagura | 2020-09-22 |
| 10536104 | Variable speed generator-motor apparatus and variable speed generator-motor system | Osamu Nagura | 2020-01-14 |