Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6184997 | Variable-length reversible image data compression process | Yoshiaki Hanyu | 2001-02-06 |
| 5835685 | Page printer, resolution converting method, and variable-length reversible compression process | Yoshiaki Hanyu | 1998-11-10 |
| 5704020 | Page printer resolution converting method, and variable-length reversible compression process | Yoshiaki Hanyu | 1997-12-30 |
| 5666213 | Image data processing system and method realizing fine image with simple construction/procedure | Masakazu Ohshita | 1997-09-09 |
| 5647010 | Image forming apparatus with security feature which prevents copying of specific types of documents | Hiromi Okubo | 1997-07-08 |
| 5327260 | Image processing apparatus for smoothing edges of image | Masayoshi Watanuki, Shinichiro Nishioka | 1994-07-05 |