Konica Corporation

Konica Minolta, Inc.

Masato Okuyama

Yukio Ohya

Shigeo Tanaka

Masakazu Tonishi

Provided is an organic EL element, wherein the thickness of the organic EL element can be made small and the width of a seal can be made narrower, and change in light-emitting quality over time can be inhibited. The organic EL element () is configured to be provided with: a second electrode () provided so as to cover an organic compound layer (); an inorganic insulation film () formed within a prescribed area within a non light-emitting area of a first electrode (), and formed between the first electrode () and the second electrode (); an inorganic film () provided so as to cover the second electrode (); a sealing resin layer () provided so as to cover the inorganic film (); and a sealing base material () provided upon the sealing resin layer ().

Organic electroluminescent element and planar light-emitting unit

A method of preparing a silver halide emulsion is disclosed, comprising the steps of forming a silver halide emulsion, subjecting the silver halide emulsion to chemical sensitization, and adding a sensitizing dye the silver halide emulsion, wherein the sensitizing dye exhibits an absorption maximum at a wavelength of not less than 730 nm, the pAg of the emulsion being adjusted to a range of from 7.50 to 8.25 after strating the chemical sensitization and before adding the sensitizing dye.

Silver halide emulsion and photographic material by use thereof

A silver halide photographic light-sensitive material is disclosed, which comprises a support and provided thereon, a silver halide emulsion layer containing a crown ether having a 18-membered ring condensed with at least one aromatic ring and silver halide grains having a (100) face and satisfying the following inequality:

Silver halide photographic light-sensitive material

A silver halide photographic light-sensitive material comprises a support and provided thereon, a silver halide emulsion layer containing silver halide grains and a macrocyclic compound in an amount of 1.times.10.sup.-6 to 1.times.10.sup.-1 mol per mol of silver, said macrocyclic compound comprising a 9- or more-membered ring containing at least one of a nitrogen atom, an oxygen atom, a sulfur atom and a selenium atom, and said silver halide grains having a silver chloride content of not less than 90 mol % and containing at least one metal selected from the group consisting of metals of VIB group, VIIB group, VIII group, IIB group, IIIA group and IVA group from the Periodic Table.

Disclosed is a light-sensitive silver halide photographic material having at least one silver halide emulsion layer on a support, wherein (1) the silver halide emulsion is spectrally sensitized by a red-sensitive sensitizing dye and contains a macrocyclic compound having at least one hetero atom, (2) a number of aliphatic rings forming the macrocyclic compound is 4 or less, and (3) the macrocyclic compound has an aromatic ring, which has good aging storage stability and excellent safelight safety characteristics, and can provide high sensitivity stably.

Growing community of inventors

Odawara, Japan

Masato Okuyama