Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5166579 | Discharge lamp operating circuit | Kenji Kawabata | 1992-11-24 |
| 4816720 | Discharge lamp operating circuit | Kenji Kawabata | 1989-03-28 |
| 4739222 | Compact fluorescent lamp with a screw base | Ichiro Torii, Kenji Kawabata | 1988-04-19 |