Badhri Narayan
41Patents
14h-index
46Co-inventors
81Inventor score
Filing activity: Dec 26, 1969 → May 3, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4965599A | Scanning apparatus for halftone image screen writing | Electricity | 144 | Expired |
| US4904034A | Scanning apparatus | Electricity | 54 | Expired |
| US5162929A | Single-beam, multicolor hologon scanner | Physics | 43 | Expired |
| US6646716B1 | Method and apparatus for printing multiple simultaneous images onto a photosensitive media | Electricity | 38 | Expired |
| US6064417A | Laser printer using multiple sets of lasers with multiple wavelengths | Performing Operations; Transporting | 36 | Expired |
| US6554388B1 | Method for improving printer uniformity | Electricity | 31 | Expired |
| US5296958A | Multiple wavelength laser beam scanning system | Physics | 28 | Expired |
| US5018808A | Method and apparatus for beam displacement in a light beam scanner | Electricity | 25 | Expired |
| US6552740B1 | Method and apparatus for printing monochromatic imaging using a spatial light modulator | Electricity | 21 | Expired |
| US7202838B2 | Viewing device | Physics | 17 | Expired |
| US6480259B1 | Method and apparatus for printing monochromatic images using a spatial light modulator having a selectable light source | Physics | 17 | Expired |
| US5026133A | Large format laser scanner with wavelength insensitive scanning mechanism | Electricity | 17 | Expired |
| US7109986B2 | Illumination apparatus | Physics | 15 | Expired |
| US5776408A | Method of engraving green ceramic articles | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US6580490B1 | Method and apparatus for printing images in multiple formats using a spatial light modulator | Physics | 13 | Expired |
| US6031561A | Printer system having a plurality of light sources of different wavelengths | Electricity | 13 | Expired |
| US7003166B2 | Method of encoding data in a monochrome media | Electricity | 10 | Expired |
| US5838355A | Printer system utilizing three different data rates | Physics | 10 | Expired |
| US5867298A | Dual format pre-objective scanner | Electricity | 8 | Expired |
| US5936652A | Apparatus for protecting a lens array of a printhead used for copy restrictive documents | Performing Operations; Transporting | 8 | Expired |
| US5018813A | Multichannel integrated optic modulator for laser printer | Electricity | 7 | Expired |
| US6069752A | Replaceable laser and modulator unit | Physics | 6 | Expired |
| US6098264A | Method of assembling laser and modulator unit | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5861977A | Dual format dual resolution scanner with off-axis beams | Electricity | 6 | Expired |
| US7212322B2 | Preview function in a digital data preservation system | Emerging Cross-Sectional Technologies | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.