Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5068746 | Image processing apparatus | Akihiro Katayama, Hiroshi Hosokawa, Izuru Sunohara, Masahiko Yoshimoto | 1991-11-26 |
| 5008950 | Image processing method and apparatus for error-dispersion digitization without moire or spurious stripe formation | Akihiro Katayama | 1991-04-16 |
| 4975786 | Image processing method and apparatus with error diffusion capability | Akihiro Katayama, Shinichi Ishida, Masahiro Sakamoto, Yasuyuki Shinada | 1990-12-04 |
| 4958238 | Image processing method and apparatus with conditional correction of error data | Akihiro Katayama | 1990-09-18 |
| 4958218 | Image processing method and apparatus with dot-processing | Akihiro Katayama | 1990-09-18 |
| 4926268 | Image processing apparatus which converts m-bit image data to n-bit (n>m) image data | Naoto Kawamura, Yuji Nishigaki | 1990-05-15 |
| 4907076 | Color balance processing apparatus wherein color component signals are corrected through comparison with a reference value | — | 1990-03-06 |
| 4878125 | Method and apparatus for image processing with fed-back error correction | Akihiro Katayama, Izuru Sunohara, Hiroshi Hosokawa, Masahiko Yoshimoto | 1989-10-31 |
| 4876610 | Image processing apparatus with binarization-error dispersal | Akihiro Katayama, Hiroshi Hosokawa, Izuru Sunohara, Masahiko Yoshimoto | 1989-10-24 |