David A. Johnson
10Patents
8h-index
18Co-inventors
69Inventor score
Filing activity: Jun 29, 1989 → Oct 30, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5418558A | Determining the operating energy of a thermal ink jet printhead using an onboard thermal sense resistor | Performing Operations; Transporting | 49 | Expired |
| US5274400A | Ink path geometry for high temperature operation of ink-jet printheads | Performing Operations; Transporting | 27 | Expired |
| US5978011A | Printer color gamut optimization method | Electricity | 24 | Expired |
| US5455613A | Thin film resistor printhead architecture for thermal ink jet pens | Performing Operations; Transporting | 23 | Expired |
| US5160842A | Infrared fire-perimeter mapping | Physics | 21 | Expired |
| US6038374A | System and method for constructing calibrated color tables in color image reproduction systems using stochastic supersampling | Electricity | 17 | Expired |
| US5521622A | Print quality optimization for a color ink-jet printer by using a larger nozzle for the black ink only | Performing Operations; Transporting | 16 | Expired |
| US6169609A | Imaging device and method for implementing a color map with K-only black point while reducing interpolator artifacts | Electricity | 11 | Expired |
| US4920357A | Unattended replacement of plotter pens | Physics | 6 | Expired |
| US9873276B2 | Microcontact printing stamps with functional features | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.