Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5754218 | Variable dot density printing system using sub-microdot matrixing and a zoom lens | Seung Ho Baek, Thomas A. Mackin | 1998-05-19 |
| 5274503 | High aperture finite conjugate lens system suitable for use as a micro relay lens | — | 1993-12-28 |
| 5272568 | High aperture finite conjugate lens system | — | 1993-12-21 |
| 5258777 | Thermal printer system with a high aperture micro relay lens system | Seung Ho Baek | 1993-11-02 |
| 5172275 | Apochromatic relay lens systems suitable for use in a high definition telecine apparatus | — | 1992-12-15 |
| 5111325 | F-.theta. lens | — | 1992-05-05 |
| 5012346 | Illumination system for a film scanner | Andrew F. Kurtz, David Kessler, Leslie G. Moore | 1991-04-30 |
| 5002365 | Beam splitter for color imaging apparatus | Anna L. Hrycin, Andrew F. Kurtz, David Kessler | 1991-03-26 |
| 4921320 | Optical scanner | David Kessler | 1990-05-01 |
| 4796962 | Optical scanner | David Kessler | 1989-01-10 |