Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882490 | Light beam scanning apparatus having two detectors whose signal ratio indicates main scanning position | Akira Yamaguchi, Ryoichi Yoshimura | 1989-11-21 |
| 4818876 | Image read-out apparatus employing a photomultiplier | Toshitaka Agano | 1989-04-04 |
| 4816678 | Method of detecting stored radiation energy level on stimulable phosphor sheet | — | 1989-03-28 |