Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873673 | Driver circuit having a current mirror circuit | Ryoichi Hori, Kiyoo Itoh, Yoshiki Kawajiri, Takao Watanabe, Takayuki Kawahara | 1989-10-10 |
| 4853899 | Semiconductor memory having amplifier including bipolar transistor | Takao Watanabe, Ryoichi Hori, Kiyoo Itoh | 1989-08-01 |