|
| US4094634 | 11. Mai 1977 | 13. Juni 1978 | Ciba Geigy AG | Anionic and nonionic emulsified optical brightener suspension with a hydrotropic agent |
| US4701399 | 25. Febr. 1985 | 20. Okt. 1987 | Fuji Photo Film Co., Ltd. | Photosensitive composition with 2-halomethyl-5-substituted-1,3,4-oxadiazole |
| US4840889 | 8. Sept. 1987 | 20. Juni 1989 | Konishiroku Photo Industry Co., Ltd. | High whiteness silver halide photographic paper for direct positives |
| US5275909 | 1. Juni 1992 | 4. Jan. 1994 | OCG Microelectronic Materials, Inc. | Positive-working radiation sensitive mixtures and articles containing alkali-soluble binder, o-quinonediazide photoactive compound and BLANKOPHOR FBW acting dye |
| US5284737 | 19. Aug. 1993 | 8. Febr. 1994 | OCG Microelectronic Materials, Inc. | Process of developing an image utilizing positive-working radiation sensitive mixtures containing alkali-soluble binder, o-quinonediazide photoactive compound and blankophor FBW actinic dye |