Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833341 | Semiconductor device with power supply voltage converter circuit | Tohru Furuyama | 1989-05-23 |
| 4814686 | FET reference voltage generator which is impervious to input voltage fluctuations | — | 1989-03-21 |