Konica Corporation
3,122Patents
58Active
3,122Granted
47Portfolio score
Filing activity: Feb 20, 1986 → Feb 2, 2009 · 36 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4987049A | Image-receiving element for heat transfer type dye image | Performing Operations; Transporting | 1,010 | Expired |
| US5443922A | Organic thin film electroluminescence element | Emerging Cross-Sectional Technologies | 215 | Expired |
| US5164833A | Electronic viewfinder | Electricity | 159 | Expired |
| US5779337A | Plane light source unit and light guide used therein | Physics | 154 | Expired |
| US5913078A | Camera utilizing a satellite positioning system | Electricity | 154 | Expired |
| US5748287A | Photographic film reproducing apparatus using object brightness and exposure correction amount to develop photographed images | Physics | 147 | Expired |
| US4947046A | Method for preparation of radiographic image conversion panel and radiographic image conversion panel thereby | Physics | 143 | Expired |
| US5407893A | Material for making identification cards | Emerging Cross-Sectional Technologies | 142 | Expired |
| US5723253A | Light-sensitive composition and light-sensitive lithographic printing plate containing o-quinonediazide compound, novolak resin, polymer and enclosure compound | Physics | 135 | Expired |
| US6835940B2 | Radiation image conversion panel | Physics | 125 | Expired |
| US6992305B2 | Radiation image converting panel and production method of the same | Physics | 123 | Expired |
| US6953941B2 | Radiation image conversion panel and producing method thereof | Physics | 122 | Expired |
| US5890040A | Developer cartridge and developer replenishing apparatus | Emerging Cross-Sectional Technologies | 121 | Expired |
| US5242752A | Magnetic recording medium comprising a specified binder resin, specified ferromagnetic metal powder and .alpha.-alumina | Emerging Cross-Sectional Technologies | 118 | Expired |
| US7281491B2 | Dielectric-coated electrode, plasma discharge treatment apparatus and method for forming thin film | Emerging Cross-Sectional Technologies | 116 | Expired |
| US6297872A | Image forming apparatus | Electricity | 116 | Expired |
| US6583820B1 | Controlling method and apparatus for an electronic camera | Electricity | 109 | Expired |
| US6900004B2 | Concentrated color developer composition used for silver halide photographic sensitized material and processing method by use thereof | Physics | 100 | Expired |
| US5146353A | Still video camera with a playback function and sound recording feature | Emerging Cross-Sectional Technologies | 99 | Expired |
| US5768640A | Camera having an information recording function | Physics | 97 | Expired |
| US5459544A | Camera with a shape memory alloy member | Physics | 90 | Expired |
| US6320042A | Polarizing plate protective cellulose triacetate film | Emerging Cross-Sectional Technologies | 90 | Expired |
| US6656608B1 | Electroluminescent material, electroluminescent element and color conversion filter | Emerging Cross-Sectional Technologies | 89 | Expired |
| US5671451A | Data-recording unit in use with a camera | Physics | 84 | Expired |
| US5390005A | Operation-panel-indicating method for a copying machine | Physics | 79 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.