Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844288 | Reproduction picture sharpness emphasizing method and apparatus | — | 1989-07-04 |
| 4834298 | Crushing method and apparatus | Hiroyuki Murata, Masahiro Chiji, Takeshi Tanaka, Tadao Kuwahara, Harunaga Kiuchi | 1989-05-30 |
| 4817180 | Image signal filtering | Yasuo Kurusu | 1989-03-28 |