Fuji Photo Film Company, Limited

Hiroyuki Asanuma

Munehisa Fujita

Hiroshi Inoue

Hiroyuki Mifune

Yukio Maekawa

Yukio Miyaki

Shoichiro Yasunami

Katsuhisa Ohzeki

Mitsutoshi Tanaka

Hiroshi Ishizuka

Fumitaka Ueda

Tadaaki Tani

Kazuo Sugiyama

Nonaqueous secondary battery having multiple-layered negative electrode

A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer, where at least one silver halide emulsion layer contains a silver halide emulsion obtained by treating a silver halide emulsion containing a dye previously added thereto with a solid adsorbent which is a porous organic synthetic resin without any ion exchange group to thereby desorb the dye adsorbed.

Silver halide photographic material

A color photographic material for diffusion transfer which comprises a support having thereon at least one light-sensitive silver halide emulsion layer containing a combination of a reducible dye providing compound represented by the following general formula (I) and an electron donor, said reducible dye providing compound releasing a diffusing dye when reduced, wherein at least one layer of silver halide emulsion layers contains a silver halide emulsion obtained by treating a silver halide emulsion, previously chemical sensitized in the presence of a sensitizing dye, with a solid adsorbent to desorb a part or the whole of the adsorbed dye.

Color diffusion transfer photographic material

There are disclosed an internal latent image type direct positive light-sensitive emulsions having improved spectral sensitization performance, and chemical sensitization performance, and color diffusion transfer photographic film units in which said emulsions are used. The emulsions are prepared by subjecting a silver halide grain, which forms an internal nucleus, to chemical sensitization, in the presence of an organic silver halide solvent, and adding a solid adsorbing agent, before finishing the formation of an outer shell silver halide phase, to remove a part or all of the silver halide solvent, wherein the emulsions may further contain a tabular silver halide grain having an average grain diameter of at least 0.3 .mu.m and a ratio of an average grain diameter to an average grain thickness of 2 or more, based on 50% or more of the total silver halide grains.

Core/shell direct positive silver halide emulsion with silver halide

A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a spectrally sensitized silver halide emulsion layer and a non-light-sensitive layer provided on a support. According to the present invention, the silver halide emulsion layer or the non-light-sensitive layer contains a complex of Ni, Co, Mn or Zn with a nitrogen-containing heterocyclic compound represented by the following formula: ##STR1## wherein ##STR2## Y is CR.sup.3 or N; Z is CR.sup.4 or N; each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently is hydrogen, a halogen atom, hydroxyl, amino, hydroxyamino, cyano, an alkyl group, an aryl group, an alkylthio group, an alkylamino group, an arylamino group, an alkoxycarbonyl group or an acylamino group; R.sup.1 and R.sup.2 with X and Cx may form benzene ring or a six-membered nitrogen-containing heterocyclic ring; and the benzene ring or the six-membered nitrogen-containing heterocyclic ring may be substituted with a halogen atom, hydroxyl, amino, hydroxyamino, cyano, an alkyl group, an aryl group, an alkylthio group, an alkylamino group, an arylamino group, an alkoxycarbonyl group or an acylamino group.

Silver halide photographic light-sensitive material

A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer wherein the silver halide emulsion contains a salt of a metal ion of which the atomic number is at least 21 alone or together with a chelating agent and wherein the silver halide emulsion has been chemically sensitized in the presence of a chemical sensitization promoter comprising at least one of a silver halide solvent and an adsorbable compound.

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Kanagawa, Japan

Hiroyuki Asanuma