Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4956718 | Tonal conversion method for pictures | Takashi Numakura, Susumu Kitazawa, Iwao Numakura | 1990-09-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4956718 | Tonal conversion method for pictures | Takashi Numakura, Susumu Kitazawa, Iwao Numakura | 1990-09-11 |