Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890018 | Bipolar-complementary metal oxide semiconductor circuit | Takahisa Muroi | 1989-12-26 |
| 4796233 | Bipolar-transistor type semiconductor memory device having redundancy configuration | Tomoharu Awaya | 1989-01-03 |