Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE31119 | Fly-back transformer with a low ringing ratio | Katumi Tokuda, Saburo Kitao | 1983-01-04 |
| 4229786 | Fly-back transformer with a low ringing ratio | Katumi Tokuda, Saburo Kitao | 1980-10-21 |