Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6509900 | Image management apparatus and method, image management system, and storage medium | Hidefumi Ohsawa | 2003-01-21 |
| 5909505 | Color image encoding method and apparatus | Akihiro Katayama, Shigeo Kato, Hirokazu Uchio | 1999-06-01 |
| 5710826 | Image encoding method | Hidefumi Osawa, Shigeo Kato | 1998-01-20 |
| 5668646 | Apparatus and method for decoding differently encoded multi-level and binary image data, the later corresponding to a color in the original image | Akihiro Katayama, Shigeo Kato, Hirokazu Uchio | 1997-09-16 |
| 5588069 | Image processing apparatus for advantageously encoding blocks of data having either substantially the same or varied colors | Akihiro Katayama | 1996-12-24 |
| 5416606 | Method and apparatus for encoding or decoding an image in accordance with image characteristics | Akihiro Katayama, Shigeo Kato | 1995-05-16 |
| 5361147 | Method and apparatus for encoding and decoding color images | Akihiro Katayama, Shigeo Kato, Hirokazu Uchio | 1994-11-01 |
| 5331426 | Image encoding method | Shigeo Kato, Hidefumi Ohsawa | 1994-07-19 |
| 5317428 | Image encoding method and apparatus providing variable length bit stream signals | Hidefumi Osawa, Shigeo Kato | 1994-05-31 |
| 5136396 | Image encoding method | Shigeo Kato, Hidefumi Ohsawa | 1992-08-04 |
| 5124811 | Image encoding apparatus | Hidefumi Ohsawa, Shigeo Kato | 1992-06-23 |