Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6791485 | Digital densitometer using light-to-frequency converter | — | 2004-09-14 |
| 6671052 | Multi-channel densitometer | — | 2003-12-30 |
| 6567171 | Digital densitometer with controlled light emitter | — | 2003-05-20 |
| 6356360 | Apparatus and method for rendering halftone dot structures using grey level dots | Dongli Yang | 2002-03-12 |
| 6331832 | Auto-ranging digital densitometer with lookup table | — | 2001-12-18 |
| 6229972 | Digital densitometer with calibration and statistics | — | 2001-05-08 |
| 6225618 | Digital densitometer with auto-ranging | William A. Hameister | 2001-05-01 |
| 6222176 | Digital densitometer with lut output summation to yield density value | William A. Hameister | 2001-04-24 |
| 6144024 | Digital densitometer using voltage-controlled oscillator, counter, and look-up table | — | 2000-11-07 |
| 6121986 | Process control for electrophotographic recording | Matthias H. Regelsberger | 2000-09-19 |
| 5956544 | Electrostatographic reproduction apparatus with electrometer control and method of calibrating the electrometer | Philip A. Stern, Anne F. Lairmore | 1999-09-21 |
| 5933682 | Copier/printer with manual adjustment for cross-track uniformity | — | 1999-08-03 |
| 5839020 | Method and apparatus for controlling production of full productivity accent color image formation | Matthias H. Regelsberger | 1998-11-17 |
| 5742868 | Method and apparatus of adjusting of charge level on an electorstatographic recording medium | — | 1998-04-21 |
| 5678131 | Apparatus and method for regulating toning contrast and extending developer life by long-term adjustment of toner concentration | Peter S. Alexandrovich | 1997-10-14 |
| 5649266 | In-station calibration of toner concentration monitor and replenisher drive | — | 1997-07-15 |
| 5631728 | Process control for electrophotographic recording | Matthias H. Regelsberger | 1997-05-20 |
| 5546165 | Scanner as test print densitometer for compensating overall process drift and nonuniformity | Yee S. Ng | 1996-08-13 |
| 5523831 | Accurate dynamic control of the potential on the photoconductor surface using an updatable look-up table | — | 1996-06-04 |
| 5412212 | Corona-charging apparatus and method | — | 1995-05-02 |
| 5235385 | Method and apparatus for controlling toner image density | — | 1993-08-10 |
| 5155529 | Detection of transfer and fusing problems in electrostatographic machines | — | 1992-10-13 |
| 5150155 | Normalizing aim values and density patch readings for automatic set-up in electrostatographic machines | — | 1992-09-22 |
| 5122835 | Compensating densitometer readings for drifts and dusting | Sally L. Stearns, David D. Almeter | 1992-06-16 |
| 5087942 | Automatic set-up for electrophotographic copying of transparency originals | — | 1992-02-11 |