Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4663662 | Picture signal processing system featuring simple or dithering binarization processing selected in response to local variations in picture density | Hidekazu Sekizawa, Kiyoshi Yamada, Yasuo Hosaka | 1987-05-05 |