Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4961103 | Semiconductor device having polycrystalline silicon resistor | Kenji Okamura | 1990-10-02 |
| 4835597 | Semiconductor device having improved multi-layer structure of insulating film and conductive film | Yasushi Okuyama | 1989-05-30 |