Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862233 | Integrated circuit device having vertical MOS provided with Zener diode | Tsutomu Matsushita | 1989-08-29 |
| 4836025 | Accelerometer | — | 1989-06-06 |
| 4823172 | Vertical MOSFET having Schottky diode for latch-up prevention | — | 1989-04-18 |
| 4805008 | Semiconductor device having MOSFET and deep polycrystalline silicon region | Kenji Yao | 1989-02-14 |
| 4803532 | Vertical MOSFET having a proof structure against puncture due to breakdown | — | 1989-02-07 |