Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855981 | Method and device for reading out optically recorded data and compensating for a drastic change in the position of a line to be read | Shunzo Takahashi, Yukio Hamasaki | 1989-08-08 |
| 4819222 | Binary encoding method for data read from optical record and device therefor | — | 1989-04-04 |