Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5345317 | High efficiency coding method for still natural images mingled with bi-level images | Satoshi Katsuno | 1994-09-06 |
| 5271072 | Image reduction of binary images using filtering processing | Tadashi Yoshida, Naoto Kawamura, Hisaharu Kato | 1993-12-14 |
| 5159468 | Image reduction system | Tadashi Yoshida, Naoto Kawamura, Hisaharu Kato | 1992-10-27 |
| 5121222 | Method and apparatus for producing binary picture with detection and retention of plural binary picture blocks having a thin line pattern including an oblique line | Hisaharu Kato, Seiichiro Ejima, Yasuhiro Yamazaki | 1992-06-09 |
| RE33547 | Graded facsimile image signal coding system | Yasuhiro Yamazaki | 1991-03-05 |
| 4922545 | Facsimile image encoding method | Yasuhiro Yamazaki | 1990-05-01 |
| 4652935 | Graded facsimile image signal coding system | Yasuhiro Yamazaki | 1987-03-24 |
| 4633326 | Fascimile communication system with desired image quality | Yasuhiro Yamazaki | 1986-12-30 |
| 4630124 | Quality selectable facsimile image coding system | Yasuhiro Yamazaki | 1986-12-16 |