Issued Patents All Time
Showing 26–50 of 113 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7016070 | Multiple-level printhead using embedded high speed serial data and control link with on-board exposure clock generation | Hieu T. Pham, Shawn E. O'Hara, William L. Chapman | 2006-03-21 |
| 7016621 | Back-transfer reduction in a tandem electrostatographic printer | — | 2006-03-21 |
| 6819351 | Coarse and fine electronic bow correction for a writer | Shawn E. O'Hara, William L. Chapman | 2004-11-16 |
| 6724413 | Image width correction for LED printhead | — | 2004-04-20 |
| 6608641 | Electrophotographic apparatus and method for using textured receivers | Peter S. Alexandrovich, Richard George Allen, Muhammed Aslam, Jiann-Hsing Chen, Diane M. Herrick +4 more | 2003-08-19 |
| 6538677 | Apparatus and method for gray level printing | John R. Thompson, Eric K. Zeise, Hwai-Tzuu Tai, Eric C. Stelter | 2003-03-25 |
| 6466331 | Multi-bit rendering with single color and two-color capability | Hwai-Tzuu Tai, Richard George Allen | 2002-10-15 |
| 6113212 | Method and apparatus for thermal control of LED printheads | — | 2000-09-05 |
| 6088050 | Non-impact recording apparatus operable under variable recording conditions | — | 2000-07-11 |
| 6078697 | Method and apparatus for segmenting image data into contone, text and halftone classifications | — | 2000-06-20 |
| 6061078 | Non-impact printer apparatus and method of printing with improved control of emitter pulsewidth modulation duration | Hieu T. Pham, Michael Mattern | 2000-05-09 |
| 6031559 | Hybrid imaging method and apparatus to reduce contouring and density reversal | — | 2000-02-29 |
| 6021256 | Resolution enhancement system for digital images | Glenn Robert Van Lare, Richard Fischer | 2000-02-01 |
| 5985499 | Method and apparatus for forming two toner images in a single frame | Joseph E. Guth, W. Charles Kasiske, Jr., Eric C. Stelter | 1999-11-16 |
| 5937147 | Printing of enhanced images | — | 1999-08-10 |
| 5914744 | Apparatus and method of printing with non-uniformity correction of exposure parameters to reduce low spatial frequency printed artifacts | — | 1999-06-22 |
| 5818501 | Apparatus and method for grey level printing with improved correction of exposure parameters | Isaac I. Ajewole, William J. Noonan | 1998-10-06 |
| 5809216 | Method and apparatus for multiple address recording with brightness and exposure time control | — | 1998-09-15 |
| 5739841 | Apparatus and method for grey level printing with uniformity correction | Hieu T. Pham | 1998-04-14 |
| 5699102 | Non-impact copier/printer system communicating rosterized, printer independant data | Eric K. Zeise | 1997-12-16 |
| 5604527 | Dot printer and method for grey level recording with different bit-depth dimensions | Hieu T. Pham | 1997-02-18 |
| 5600761 | Resolution enhancement system for combined binary and gray scale halftone images | Hurjay Yeh, Michael A. Pickup | 1997-02-04 |
| 5585836 | Electrophotographic image recording apparatus and method with correction for bow in placement of recording elements | Hieu T. Pham, Daniel C. Abbas | 1996-12-17 |
| 5586055 | Non-uniformity correction of an LED printhead | Hur-Jye Yeh | 1996-12-17 |
| 5546165 | Scanner as test print densitometer for compensating overall process drift and nonuniformity | Allen J. Rushing | 1996-08-13 |