Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5452196 | Protection system for thyristor valve having first and second reverse voltage detection circuits | — | 1995-09-19 |
| 5434772 | Control device for thyristor converter | — | 1995-07-18 |
| 4680691 | Method and system for preventing an excessive voltage build-up in a power converter system | Teruo Yoshino | 1987-07-14 |