James A. Friday
36Patents
8h-index
43Co-inventors
75Inventor score
Filing activity: Mar 7, 1978 → Jan 17, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6319660A | Color photographic element containing speed improving compound | Physics | 28 | Expired |
| US5314793A | Multicolor photographic elements exhibiting an enhanced speed-granularity relationship | Physics | 26 | Expired |
| US5360703A | Multicolor photographic elements exhibiting an enhanced characteristic curve shape | Physics | 18 | Expired |
| US4148642A | Photographic products and processes employing nondiffusible 1-arylazo-4-isoquinolinol dye-releasing compounds | Physics | 10 | Expired |
| US4459347A | Adsorbable arylhydrazides and applications thereof to silver halide photography | Physics | 10 | Expired |
| US6027869A | Photographic elements containing light scattering particles | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6426180B1 | Color photographic element containing speed improving compound in combination with electron transfer agent releasing compound | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6350564B1 | Color photographic element containing speed improving compound in combination with reflecting material | Physics | 9 | Expired |
| US5300418A | Viscosity control of photographic melts | Physics | 8 | Expired |
| US6090536A | Photographic emulsions and elements of increased sensitivity | Physics | 8 | Expired |
| US6455242B1 | Color photographic element containing speed improving compound | Physics | 7 | Expired |
| US6225036A | Color photographic element containing a fragmentable electron donor in combination with a one equivalent coupler and starch peptized tabular emulsion for improved photographic response | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6187525A | Color photographic elements of increased sensitivity containing one equivalent coupler | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5998114A | Color photographic film exhibiting increased red speed and sharpness | Physics | 5 | Expired |
| US6114103A | Photographic recording material for accelerated development | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6242170A | Color photographic element containing a fragmentable electron donor in combination with a one equivalent coupler for improved photographic response | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5464733A | Photographic material having reduced fog | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5994042A | Color photographic film exhibiting increased blue speed | Physics | 3 | Expired |
| US6001548A | Color photographic film with a plurality of grain populations in its red recording layer unit | Physics | 3 | Expired |
| US4183754A | Photographic products and processes employing nondiffusible 1-arylazo-4-isoquinolinol dye-releasing compounds | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6159672A | Photographic material having a blue sensitive coupler starved unit | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6893809B2 | Silver halide photographic element containing fogged emulsions for accelerated development | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5614360A | Photographic element and coating composition | Physics | 2 | Expired |
| US5998113A | Color photographic film with a plurality of grain population in its blue recording layer unit | Physics | 2 | Expired |
| US6509144B1 | Fragmentable electron donor compounds combined with broad blue spectral sensitization | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.