Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862340 | DC power transmission system | — | 1989-08-29 |
| 4797799 | Power converter | Takami Sakai | 1989-01-10 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862340 | DC power transmission system | — | 1989-08-29 |
| 4797799 | Power converter | Takami Sakai | 1989-01-10 |