Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849934 | Logic circuit using resonant-tunneling transistor | Naoki Yokoyama | 1989-07-18 |
| 4825250 | Image forming apparatus including exposure scanning means | Masanori Miyata, Yutaka Komiya, Shinichi Nakamura, Masayuki Hirose, Tomobumi Nakayama | 1989-04-25 |