Konishiroku Photo Industry Co., Ltd.

Masaru Kanbe

Jiro Takahashi

Ryuichiro Kobayashi

Kazumasa Watanabe

Morito Uemura

Tatsuhiko Kobayashi

Naoto Abe

Hideyasu Ohta

Jun Shirasaki

Masayoshi Mayama

Toshiaki Takahashi

Ken-ichi Kishi

Shinobu Korematsu

Takahiro Uozumi

Tsuneo Suga

Mamoru Komiya

Eiichi Sakamoto

Satoru Ikeuchi

Noboru Mizukura

Sadatugu Terada

Masao Ishihara

Shunji Suginaka

Hiroshi Yamada

Kenichi Kitahara

Motoo Kogure

Masaharu Oishi

Yasuji Muroi

Kazuo Nakazato

A photographic element containing a nondiffusible metal complex capable of releasing a diffusible photographically useful group. The complex contains at least one poly-dentate ligand which contains the photographically useful group. The complex may be activated when reduced under alkaline conditions to release the photographically useful group.

Photographic element with reducible metal complex that releases

A light-sensitive photographic element comprising a support and at least one light-sensitive silver halide emulsion layer coated thereon having associated therewith a magenta image dye-providing compound which releases a magenta dye or a precursor thereof corresponding to the imagewise exposure of said emulsion layer, said magenta dye-providing compound being a compound represented by formula [I]: ##STR1## wherein Car represents a carrier moiety which can be oxidized under alkaline conditions to release a diffusible dye or a precursor thereof from said compound;

Light-sensitive photographic element comprising a magenta image

A light-sensitive photographic element comprising a support and at least one light-sensitive silver halide emulsion layer coated thereon having associated therewith a cyan image dye-providing compound which releases a cyan dye or a precursor thereof corresponding to the imagewise exposure of said emulsion layer, said cyan image dye-providing compound being a compound represented by formula [I] or [II]: ##STR1## wherein Car, R.sup.1, R.sup.2, X, Y.sup.1, Y.sup.2, m, J.sup.1 and J.sup.2 are defined in the specification and claims.

Light-sensitive photographic element comprising a cyan image

A method of undercoating a polyester film of a light sensitive photographic material is disclosed in which one side of the film is pretreated such that the contact angle with water is below 58.degree.. Additionally, a layer of an aqueous dispersion containing no organic solvent is applied to said side of said film, said dispersion containing a copolymer containing up to 60% by weight of glycidyl methacrylate and 25-60% by weight of ethyl acrylate.

Method of undercoating treatment of polyester films for photographic

2-Sulfamoyl-5-sulfamido-1-naphthols represented by the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 can be the same or different and each represent a hydrogen atom, a straight-chain alkyl group, a branched alkyl group or a cycloalkyl group; or R.sup.1 and R.sup.2 can be connected with each other, together with the nitrogen atom, to form a ##STR2##

2-Sulfamoyl-5-sulfamido-1-naphthols

A hydrophobic plastic support which has a layer thereon comprising a copolymer, said copolymer consisting essentially of an acrylic monomer selected from alkyl esters of acrylic acid and alkyl esters of methacrylic acid, and an ethylenically unsaturated monomer having a group of the formula

Plastic support having improved adhesivness to material to be bonded

A photographic light-sensitive material comprising a layer which contains a compound represented by the following Formula I ##STR1## wherein R.sub.1 is an alkyl group having 1 to 18 carbon atoms, R.sub.2 is a hydrogen atom or an alkyl group having 1 to 18 carbon atoms with a proviso that when R.sub.2 is a hydrogen atom, R.sub.1 is an alkyl group having 1 to 7 carbon atoms, M is a cation and n is a number of 1 to 50.

Photographic light-sensitive material

The present application is directed to a process for subbing a photographic hydrophobic film which involves subjecting at least one surface of the film to a hydrophylizing pretreatment step, coating the pretreated surface with an aqueous dispersion containing a polymer which has particular comonomers in a combined amount of more than 76%, then coating the coated surface with a liquid containing colloidal silica.

Process for subbing photographic hydrophobic films

This invention provides an undercoat-applied plastic film comprising a plastic film substrate and an undercoat layer on at least one surface of the plastic film substrate, said undercoat layer being formed by treating the film surface with a soluble high molecule compound expressed by the following general formula: ##STR1## AND A SOLVENT OR SWELLING AGENT FOR SAID PLASTIC FILM SUBSTRATE. This undercoat-applied aplastic film has an excellent antistatic property on the treated surface and exhibits a good adherence to a material to be applied thereto.

Undercoat-applied plastic films

An improved silver halide photosensitive material of the lith-type is disclosed which is suitable for an infectious development in order to obtain high contrast images with high sensitivity. A method for developing the material is also disclosed. The material comprises silver halide grains containing at least 50 mole per cent of silver chloride, less than 40 mole per cent of silver bromide and less than 5 mole percent of silver iodide based on total silver halide, the average size of the grains being 0.05 to 0.5 microns in diameter. The material further comprises a compound represented by the following general formula I or II ##STR1## wherein R is alkyl, aryl, aralkyl or acyl; R' is hydrogen or --OR; and R' is hydrogen or acyl.

Lith-type silver halide photosensitive material containing a

An improved method for adjusting bromide ion concentration in a photographic processing solution is disclosed in which the processing solution is contacted with particles of an insoluble bismuth compound.

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Hino, Japan

Masaru Kanbe