Issued Patents All Time
Showing 26–50 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7706728 | Apparatus and methods for loading a donor roll utilizing a slow speed trim roll | Palghat S. Ramesh, John F. Knapp, Paul J. McConville, Daniel M. Bray, Robert A. Pictor +3 more | 2010-04-27 |
| 7660551 | Apparatus and methods for loading a donor roll | Palghat S. Ramesh, John F. Knapp, Daniel M. Bray, Robert A. Pictor, Todd K. Preston +2 more | 2010-02-09 |
| 7532830 | Environmental controls for operation of an electrostatographic developer unit having multiple magnetic brush rolls | Ajay Kumar, Hirotsugu Oba, Keith A. Nau, David A. Reed, Cory Joseph Winters +7 more | 2009-05-12 |
| 7406279 | Xerographic developer unit having multiple magnetic brush rolls rotating with the photoreceptor | James M. Chappell, Patrick J. Howe | 2008-07-29 |
| 7366453 | Xerographic developer unit having multiple magnetic brush rolls rotating against the photoreceptor | James M. Chappell, Steven C. Hart, Patrick J. Howe, Ajay Kumar, Steven R. LeRoy +3 more | 2008-04-29 |
| 7309556 | Black toner and developer | Maria N. V. Mc Dougall, Richard PN Veregin, Vladislav Skorokhod, Mary L. Mc Stravick, Deepak R. Maniar +7 more | 2007-12-18 |
| 7283143 | Measurement and control of high frequency banding in a marking system | Howard A. Mizes, Beilei Xu, Chu-heng Liu, Robert P. Loce, Eric S. Hamby +1 more | 2007-10-16 |
| 7177572 | Biased charge roller with embedded electrodes with post-nip breakdown to enable improved charge uniformity | Christopher A. DiRubio, Gerald M. Fletcher, Charles A. Radulski | 2007-02-13 |
| 7120369 | Method and apparatus for correcting non-uniform banding and residual toner density using feedback control | Eric S. Hamby, R. Enrique Viturro, Eric Michael Gross, Howard A. Mizes | 2006-10-10 |
| 7058325 | Systems and methods for correcting banding defects using feedback and/or feedforward control | Eric S. Hamby, Eric Michael Gross, Daniel Viassolo, R. Enrique Viturro, Fei Xiao +1 more | 2006-06-06 |
| 6606477 | Method to control pre- and post-nip fields for transfer | Christopher A. DiRubio, Gerald M. Fletcher, Charles A. Radulski | 2003-08-12 |
| 6477351 | Blade cleaning system employing an electrode array | Bruce E. Thayer | 2002-11-05 |
| 6351623 | Toner dispensing apparatus employing a traveling wave transport grid | Bruce E. Thayer | 2002-02-26 |
| 6175707 | Integrated toner transport/toner charging device | Elliott A. Eklund, Yelena Shapiro, Jack T. LeStrange, Tuan A. Vo, Kaiser H. Wong | 2001-01-16 |
| 6137979 | Toner transport using superimposed traveling electric potential waves | Yuri Gartstein, Palghat S. Ramesh | 2000-10-24 |
| 6134412 | Method for loading dry xerographic toner onto a traveling wave grid | — | 2000-10-17 |
| 6112044 | Integrated toner transport/toner charging device | Heiko Rommelmann | 2000-08-29 |
| 6070036 | Multizone method for xerographic powder development: voltage signal approach | Tuan A. Vo | 2000-05-30 |
| 5953571 | Apparatus and method for loading a donor member | — | 1999-09-14 |
| 5473414 | Cleaning commutator brushes for an electroded donor roll | — | 1995-12-05 |
| 5327169 | Masked magnetic brush direct writing for high speed and color printing | — | 1994-07-05 |
| 4901114 | Tri level xerography using a MICR toner in combination with a non-MICR toner | Delmer G. Parker, Gerald M. Fletcher | 1990-02-13 |
| 4744766 | Low voltage electrical distribution system | Stephen Hall, David Clarke | 1988-05-17 |
| 4727823 | Magnetic roll structure for transporting single component magnetic developer | Clifford W. Imes, IV | 1988-03-01 |
| 4637340 | Developer metering structure | Clifford W. Imes, IV | 1987-01-20 |