Fuji Photo Film Company, Limited

Fujifilm Corporation

Takeshi Funakubo

Kiyoshi Morimoto

Hirotomo Sasaki

Katsuyuki Watanabe

Kazutaka Takahashi

Yoichi Maruyama

Takayoshi Oyamada

Yoichi Hosoya

Mamoru Sakurazawa

Kenji Naoi

Kiyoteru Miyake

Naoharu Kiyoto

Ryoji Nishimura

Takeshi Suzumoto

Hideo Hanawa

Nori Miyagishima

The present invention provides a metal nanowire-containing composition containing at a least metal nanowire and a heterocyclic compound having an interaction potential of less than &#x2212;1 mV.

Metal nanowire-containing composition, and transparent conductor

A flat metal particle-containing composition including flat metal particles containing silver and a metal nobler than the silver, wherein the metal nobler than the silver is located near surfaces of the flat metal particles and wherein an amount of the metal nobler than the silver is 10atomic % to 5 atomic % relative to the silver contained in the flat metal particles.

Flat metal particle-containing composition and heat ray-shielding material

The invention provides a photothermographic material having, on both sides of a support, an image forming layer including at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, which is to be exposed with X-rays using a fluorescent intensifying screen, wherein (1) a coating amount of the photosensitive silver halide per one side is from 0.01 g/mto 0.45 g/min terms of silver amount; and (2) a crossover (%) is 30% or more, or when parallel light having the same wavelength as a main emission peak wavelength of the fluorescent intensifying screen is incident perpendicular to the surface of the photothermographic material, the parallel light component of transmitted light comprises 5% or more of the incident light. A photothermographic material for medical use having high sensitivity and high image quality is provided.

Photothermographic material

The present invention provides a black and white photothermographic material having, on at least one side of a support, an image forming layer containing at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, and a binder, as well as an image forming method. The black and white photothermographic material is characterized in that 50% or more of a total projected area of the photosensitive silver halide is occupied by tabular grains having a (111) face as a major face; the tabular grains have at least 2 parallel twin crystal planes in a grain; and a variation coefficient of a distribution of distances between closest twin crystal planes is 20% or less. Also provided is an image forming method that includes image exposure using fluorescent intensifying screens and thermal development.

Black and white photothermographic material and image forming method

Provided is an image forming method including providing a photothermographic material having image forming layers containing at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder on both surfaces of a support, imagewise exposing the photothermographic material with a fluorescent intensifying screen, and thermally developing the photothermographic material in a thermal developing apparatus having a heating section, wherein the heating section has at least two heating means and a difference between a sensitivity when the photothermographic material is developed at 25&#xb0; C. and relative humidity of 75% and a sensitivity when the photothermographic material is developed at 25&#xb0; C. and relative humidity of 20% is 0.20 or less. An image forming method similar to that described above in which the photothermographic material has an antistatic layer is also provided.

Image forming method using photothermographic material

A silver halide emulsion containing a compound represented by the following formula (1) or (2):  

Silver halide emulsion, silver halide photosensitive material, and photothermographic material

The present invention provides a black and white photothermographic material having, on at least one side of a support, an image forming layer containing at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, and a binder, as well as an image forming method. The black and white photothermographic material is characterized in that 1) the non-photosensitive organic silver salt includes at least one compound selected from the group consisting of a silver salt of an azole compound and a silver salt of a mercapto compound, and 2) the photosensitive silver halide has a spectral sensitizing dye in the form of a multilayer adsorbed on its surface. According to the invention, an improved black and white photothermographic material and image forming method realizing high sensitivity, favorable gradation, and less dependence on developing process conditions are provided.

Silver halide photographic emulsion and silver halide photographic light-sensitive material using the same

A silver halide emulsion comprising silver halide grains. In them, 60 or more percent of the total area of all silver halide grains are occupied by tabular silver halide grains having a circle equivalent diameter of 0.6 .mu.m or less, an aspect ratio of 1.5 or more, and having dislocation lines substantially localized only in the fringe portions thereof. Also, 50 or more percent of the number of all silver halide grains are occupied by tabular silver halide grains having 10 or more dislocation lines per grain. In addition, the surface silver iodide content of all silver halide grains is 3 mol % or less when analyzed by X-ray photoelectric spectroscopy (XPS).

Growing community of inventors

Kanagawa, Japan

Takeshi Funakubo