Abstract: A silver halide color photographic light sensitive material is disclosed, comprising a support having thereon a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layers, wherein at least one of the silver halide emulsion layers contains a coupler represented by the following formula: 1

Abstract: The orientation of a reflection type liquid crystal display device is improved to widen the field angle. A panel is provided with a transparent first substrate located on the external light incident side, a second substrate located on the opposite side bonded to the first substrate with interposition of a predetermined space, a twist-oriented nematic liquid crystal layer supported in the space between both substrates, and electrodes for applying a voltage to the nematic liquid crystal layer formed on both substrates. The nematic liquid crystal layer remains in twist orientation and functions as a quarter wavelength layer to allow the external light to pass in cooperation with the deflection plate and the quarter wavelength plate for displaying white while no voltage is applied. On the other hands the nematic liquid crystal layer is converted to perpendicular orientation and loses the function of a quarter wavelength layer not to allow the external light to pass for displaying black.

Abstract: A silver halide light sensitive color photographic material comprising a support having thereon hydrophilic colloid layers including a silver halide emulsion layer, at least one of the hydrophilic colloid layers containing a DIR coupler represented by the following formulas: ##STR1## wherein Y represents a yellow coupler moiety, and the residual atomic group represents a development inhibitor residue capable of being released from Y upon coupling reaction with an oxidation product of a color developing agent.

Abstract: A method for synthesizing a halogen-containing condensation product, the method comprising the step of:reacting a compound represented by Formula (I) with a compound represented by Formula (II) or (III) in the presence of a halogenating agent whereby dehydration condensation and halogenation are carried out, ##STR1##

Abstract: A silver halide light-sensitive color photographic materials is disclosed. The material comprises a compound which releases, upon reaction with an oxidation product of a color developing agent, a 2-mercapto-1,3,4-oxadiazole derivative represented by formula I: ##STR1## wherein L.sub.1 represents a linkage or a divalent linking group; R.sup.1 represents an alkyl group, an aryl group or a heterocyclic group; R.sup.2 represents a hydrogen atom or a substituent; n represents an integer of one, two or three; and m represents an integer of zero, one or two, provided that sum of m and n is three.The color photographic material produces a dye image having enhanced image-sharpness, showing large inter-image effect with reduced reduction of gamma in the layer, to which the coupler is incorporated and having improved stability with the lapse of time during storage.

Abstract: A silver halide color photographic material containing a compound capable of the timed release of photographically useful groups is disclosed. The material contains at least one compound of the formula (I): ##STR1## wherein R.sub.1 is an alkyl group; R.sub.2 is an alkyl or aryl group; R.sub.3 is an oxycarbonyl, sulfonamido, carbamoyl, acylamino, ureido, oxycarbonylamino, sulfonyloxy, carbonyloxy or sulfamoyl group; R.sub.4 is a substituent; n is 0, 1, 2 or 3; and X is a group, preferably of the formula (II) or (III), which, when eliminated upon coupling with the oxidation product of a developing agent, forms an o-quinonemethide or p-quinonemethide to release a development inhibitor or a precursor thereof.

Abstract: Disclosed is a heat-sensitive transfer recording material comprising a support and a heat-sensitive layer thereon, wherein said layer contains at least a compound represented by the formula (I): ##STR1## (wherein R.sup.1 represents hydrogen atom, an alkyl group, an aryl group or a --CO-R.sup.4 -- (where R.sup.4 represents an alkylene group) which has carbonyl carbon to nitrogen atom and also is bonded at one end to the benzene nucleus substituted with R.sup.2 to form a ring; R.sup.2 and R.sup.3 each represent hydrogen atom, a halogen atom, an alkyl group, a cycloalkyl group, an aryl group, an alkenyl group, an aralkyl group, an alkoxy group, an aryloxy group, a cyano group, an acylamino group, an alkylthio group, an arylthio group, a sulfonylamino group, a ureido group, a carbamoyl group, a sulfamoyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfonyl group, an acyl group, an amino group; R.sup.1, R.sup.2 and R.sup.

Abstract: A silver halide photographic light-sensitive material containing a novel magenta dye-forming coupler. The coupler is represented by the following Formula I: ##STR1## wherein R.sub.1 is a hydrogen atom or a substituent; R.sub.2 is a substituted or unsubstituted aryl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted heterocyclic group or a substituted or unsubstituted amino group; provided, R.sub.1 and R.sub.2 are allowed to bond together so as to complete a ring; Z is a hydrogen atom or a group capable of being split off upon coupling reaction with the oxidized product of a an aromatic primary amine developing agent; and EWG is an electron attractive group having a Hammet's .sigma. p value of more than 0.3. The photographic material has excellent color reproducibility and improved in color forming efficiency and graininess of images.

Abstract: A silver halide light-sensitive color photographic material which comprises a coupler represented by formula [I]; ##STR1## wherein A represents a coupler residue that is capable of releasing the remaining group of said coupler upon reaction with an oxidation product of a developing agent; L represents a timing group which is capable of releasing the rest of the group after said remaining group being released from A; n represents 0 or 1; X represents an oxygen or sulfur atom; Y represents a --NHSO.sub.2 R.sub.1 ' group, a ##STR2## group or a --NHCOR.sub.1 ' group, in which formulas R.sub.1 ' and R.sub.2 ' independently represent a hydrogen atom, an aliphatic group, an aromatic group or a heterocyclic group; R.sub.1 and R.sub.2 independently represent a hydrogen atom, an aliphatic group, an aromatic group or a heterocyclic group; R.sub.3 represents a substituent group; m represents 0, 1 or 2, provided that when m is 2, two R.sub.3 s may be different, and that two of R.sub.1, R.sub.2 and R.sub.3 or two of R.sub.