Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5307181 | Screen generation for halftone screening of images using scan line segments of oversized screen scan lines | — | 1994-04-26 |
| 5291310 | Screen generation for halftone screening of images | — | 1994-03-01 |
| 5276535 | Method and apparatus for halftoning of images using grayscale error diffusion | — | 1994-01-04 |
| 5218386 | Eyeglasses with spectral color shift | — | 1993-06-08 |
| 5155588 | Color correction and apparatus for photographic reproduction | — | 1992-10-13 |
| 5055942 | Photographic image reproduction device using digital halftoning to screen images allowing adjustable coarseness | — | 1991-10-08 |
| 4523271 | Software protection method and apparatus | — | 1985-06-11 |