Abstract: A presensitized plate from which a lithographic printing plate is to be prepared, comprising a support having provided thereon a non-silver light-sensitive layer comprising an O-quinonediazide compound and a silver halide light-sensitive layer in this order, said silver halide light-sensitive layer containing a specific sensitizing dye. The presensitized plate is specifically high in sensitivity to a light of the wavelength in the range of 480 nm to 520 nm, and therefore it can be handled even under the lighter safe light.

Abstract: There is described a waterproof support material for light-sensitive materials with an anti-curl layer applied in two successive coatings on the reverse side.With the first coating, gelatin is dried out from the sol form and hardened in such a manner that, after the drying of the first coating, the second coating, which contains additional hardening agent, can be applied immediately without difficulty. Chromium(III)-salts are contained in both coatings as hardening agents.Through the selected combination of 2 process steps, anti-curl layers of extremely low water absorption capacity are obtained.

Abstract: A silver halide photographic light-sensitive material comprising a support provided thereon with photographic layers including at least one silver halide emulsion layer and at least one non-light-sensitive layer is disclosed. The silver halide emulsion layer comprises silver halide grains comprising not less than 80 mol % of silver chloride. At least one of the photographic layers contains an ultraviolet absorbing agent which is in the liquid state at ordinary temperature. And at least one of the photographic layers is hardened with a vinylsulfon hardner. The photographic material has a high developing rate and a high antipressure property, so it is suitable for a rapid processing.

Abstract: A silver halide photographic emulsion containing at least one of the compounds of formula (I) and at least one of the compounds of formula (III), or further containing at least one of the compounds of formula (II) besides the above at least two compounds: ##STR1## wherein R.sub.0, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10 and R.sub.11 each represent various groups; X.sub.1.sup..crclbar., X.sub.2.sup..crclbar. and X.sub.3.sup..crclbar. each represent counter anions; l, m and n are each 0 or 1; Z.sub.1 and Z.sub.2 each represent nonmetal atomic groups necessary for forming unsubstituted or substituted benzene rings, or unsubstituted or substituted naphthalene rings; and Z.sub.3 and Z.sub.4 each represent nonmetal atomic groups necessary for forming unsubstituted or substituted naphthalene rings.

Abstract: The present invention is directed to an optical information recording medium for carrying out recording, readout and erasing with laser beams which comprises a support having carried thereon at least one of the compounds represented by the following general formulae (I), (II), (III) and (IV): ##STR1## wherein X and X' each represents an atomic group necessary for forming a carbon ring or an atomic group necessary for forming a specific heterocyclic ring; L.sup.1 mainly represents a methine group, or a group formed by linking 3 or 5 methine groups in turn to form conjugated double bonds; and Q and Q' each represents an atomic group whereby a conjugated double bond chain is completed; ##STR2## wherein L.sup.1 and Q are as defined in general formula (I); Z represents an atomic group necessary for forming a carbon ring or heterocyclic ring; R.sup.1 to R.sup.3 and E represent various substituents; and M represents an ion, etc.

Abstract: A silver halide photographic emulsion containing silver halide grains having (III) faces, at least 50% (by projected area) of which are(a) silver halide grains controlled so that the development thereof is initiated at the corners or in the vicinity of the corners of the grains, and/or(b) silver halide grains controlled so that the development thereof is initiated at the edges or in the vicinity of the edges of the grains.

Abstract: Compounds of the formulaa: ##STR1## where Z.sub.1, Z.sub.2, L.sub.1 -L.sub.5, R.sub.1, R.sub.2, R.sub.3, m, and n are as defined herein are disclosed. A method of making the componds is also disclosed. the compounds are useful as sensitizing dyes in photographic elements.

Abstract: An optical recording medium comprising a recording layer containing at least one compound selected from the group consisting of azulenium salt compounds represented respectively by Formulae (I), (II), (III) and (IV), and an optical recording method comprising forming pits and recording information by irradiation of a laser beam on an optical recording medium having a recording layer containing one or more of azulenium salt represented by Formulae (I), (II), (III) and (IV).

Abstract: A recording medium is provided which comprises a recording layer comprising at least one set of image-forming units containing a region holding a photosensitive protein and a color-developing means capable of developing a color according to a change in the hydrogen ion concentration in the region. Each of said image-forming units within the same set having a photosensitive protein sensitive to a different wavelength.

Abstract: A photorecording element is disclosed which consists of a transparent substrate, a molecular layer of an organic compound with an ability to change structure reversibly by virtue of light and disposed in direct contact with the transparent substrate, and a layer of liquid crystals disposed in direct contact with the molecular layer. A liquid crystal cell comprising the photorecording element is also disclosed. A modification having fine deformations on the surface of the transparent substrate and a modification having a dichroic dye contained in the layer of liquid crystals are embraced by the present invention.

Abstract: A compound of the general formula (I): ##STR1## (in which EAG represents an electron accepting group; R.sup.1 and R.sup.2 each represents a substituent except hydrogen; and R.sup.1 and R.sup.2, R.sup.1 and EAG, and R.sup.2 and EAG may be bonded together to form a ring) is incorporated into a silver halide photographic material. The compound of the formula (I) becomes oxidative after cleavage of the nitrogen-oxygen single bond in the molecule, and the compound displays an action as an antifoggant, a stabilizer and/or a black spot preventing agent in the photographic material.

Abstract: A process for forming an image comprising heating a heat-developable light-sensitive material comprising a support having thereon at least a light-sensitive silver halide and a high molecular weight compound containing a repeating unit derived from a vinyl monomer having at least one of a group -COOM and a group -SO.sub.3 M wherein M represents a hydrogen atom or an alkali metal atom, simultaneously with or after imagewise exposure thereof in the presence of water and at least one of a base and a base precursor.

Abstract: A silver halide color photographic light-sensitive material includes a support having thereon at least one silver halide emulsion layer, wherein the emulsion layer contains a silver halide emulsion which comprises silver halide grains consisting of at least 50 mol % of silver chloride and contains at least one of the compounds represented by formulas [I] to [III]: ##STR1## wherein Z represents alkyl (the number of carbon atoms is 1 to 18), aryl (the number of carbon atom is 6 to 18), or heterocyclic,Y represents an atom group required for forming heterocyclic or aryl (the number of carbon atoms of the aryl is 6 to 18),M represents metal cation, organic cation, or hydrogen atom, andn represents an integer from 2 to 10.

Abstract: Infra-red sensitizing dyes for silver halide having a mucleus of the general formula: ##STR1## in which: Q represents Cl or Br,R.sup.3 represents an alkyl or substituted alkyl,n is 0, 1, 2 or 3,X is an anion of molecular weight up to 400 which may be incorporated in one R.sup.3 group.

Abstract: An optical recording medium comprises an organic thin film recording layer on a substrate, which medium performs recording of information by forming a pit with photoenergy, said organic thin film recording layer comprising an organic dye and a polymeric surfactant.

Abstract: A metal-containing indoaniline compound having the formula: ##STR1## wherein M is a metal atom of Group VIII, Ib, IIb, IIIb, IVa, Va, VIa or VIIa of the Periodic Table or its halide or oxide, rings A, B, C, D, E and F may have substituents, each of K.sup.1 K.sup.2 and K.sup.3 is a residue of a substituted or unsubstituted aromatic amine, each of l, m and n is 0 or 1, provided l+m+n=2 or 3, and p is 2, 3 or 4.

Abstract: In combination with oil formers of the alkylphenol type, 3-anilinopyrazolones show absorption maxima displaced by about 8 to 12 nm towards longer wavelengths and a blue secondary absorption further displaced towards the UV range and, hence, a reduced yellow secondary density.

Abstract: Silver halide color photographic materials, and processes for processing photographic materials, are described, involving the use of at least one of a compound represented by formula (I) and a compound represented by formula (II) ##STR1## wherein A represents an n-valent aliphatic linkage group, an aromatic linkage group or a heterocyclic group (when n is 1, A represents an aliphatic group, aromatic group, heterocyclic group, or hydrogen atom); X represents --O--, --S--, or ##STR2## (wherein, R.sup.4 represents a lower alkyl group); R.sup.1 and R.sup.2 each represents a substituted or unsubstituted lower alkyl group; R.sup.3 represents a lower alkylene group; said R.sup.1 and R.sup.2, said R.sup.1 and A, said R.sup.1 and R.sup.3, said R.sup.2 and A, or said R.sup.2 and R.sup.

Abstract: A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer containing a dispersion, said dispersion comprising oleophilic fine particles containing (a) at least one oil-soluble cyan coupler represented by formula (I) (described herein) capable of forming substantially non-diffusible cyan dye upon coupling with an oxidation product of an aromatic primary amine developing agent, and (b) a water-insoluble, organic solvent-soluble homopolymer or copolymer comprising not more than about 20% by weight of a repeating unit having an acid radical in the main chain or a side chain thereof, wherein the dispersion does not contain high-boiling point organic solvents. The photographic material provides color images excellent in preservability, particularly resistance to dark discoloration and light discoloration in good balance.

Abstract: A silver halide emulsion containing at least 20 wt %, on the basis of the total silver halide, of rod-like or needle-like crystal grains and/or crystal grains each formed by joining at least two of said rod-like or needle-like crystal grains at right angles or in paralle, said rod-like or needle-like crystal grains each being defined by the crystal planes consisting essentially of the (100) faces, wherein, when a ratio of length of the edges along which said planes intersect is taken as l:m:n in the order of from the smallest to the largest, m and n satisfy the following relationships (I) and (II):1.ltoreq.m.ltoreq.7 (I)n.gtoreq.