Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837689 | Inputting and editing system in a knowledge based inquiry and answer system | Shigeki Kuga, Taro Morishita, Nobuo Nakamura, Mikio Ohsaki | 1989-06-06 |
| 4812638 | Focusing error detector and optical data detecting device incorporating the focusing error detector | Nobuo Ogata, Yasuo Nakata, Hideaki Satou, Etsuji Minami, Yoshio Yoshida +2 more | 1989-03-14 |