Konishiroku Photo Industry Co., Ltd.

Konica Corporation

Toshifumi Iijima

Kenji Kumashiro

Kiyoshi Yamashita

Yoshitaka Yamada

Syoji Matsuzaka

Hiroshi Kashiwagi

Toshihiko Yagi

Takashi Kamio

Kaoru Onodera

Hiroshi Shimazaki

Shinya Shimura

Shigeharu Koboshi

Hiroshi Yamazaki

Noritaka Nakayama

Katsunori Katoh

Satoshi Kawakatsu

Takeo Koitabashi

Wataru Fujimatsu

Yoshihiro Haga

Hideo Akamatsu

Kaoru Shinozaki

Hiroshi Menjo

Koichi Hatta

Yuichi Atarashi

Masaru Iwagaki

Satoshi Nakagawa

Hideki Takiguchi

Hiroshi Kibayashi

Hideaki Haraga

Shuri Mizoguchi

Masami Fujita

Kiyoaki Hazama

Takao Hosaka

Yoshikazu Watanabe

Ken Ishida

Yuji Hotta

Hisashi Yamaguchi

Yoshiharu Mochizuki

Kijiro Suzuki

Kazuhisa Aratame

Motoaki Tanaka

Tetsuya Harada

Kei Kaneiwa

Yoshiro Shigetomi

Tadahiko Obikawa

Syozi Matsuzaka

Mikio Miura

Yoshichika Noda

Wataru Fujimastu

Takeshi Sampei

Hiroko Ohya

Jun Kitahara

A lens-fitted film unit including a main body; a photographic film, pre-loaded in the main body; an electronic flash unit; a shutter unit; a camera lens; and a diaphragm. In the lens-fitted film unit, a guide number of the electronic flash unit, a T-number determined from the camera lens and the diaphragm and a shutter speed of the shutter unit are determined so that A is not more than 8.5 when A represents an EV value of a reference exposure amount of the lens-fitted film unit under a stroboscopic photographing state minus 1.5; and intensity of a latent image, formed on the photographic film under the condition that a reference reflection panel being placed at a predetermined distance between 2-3 m from the lens-fitted film unit is illuminated by the electronic flash unit without other lights in the stroboscopic photographing state, corresponds to intensity of a latent image obtained under a photographing condition of photographing luminance not more than A&plus;5.0 in EV value.

Lens-fitted film unit with a built-in electronic flash unit and image forming method based on a photographic film exposed by the lens-fitted film unit with a built-in electronic flash unit

In an apparatus for handling a photographic roll film on order of a customer, the film carries the customer code on its recording layer. The printing device reads the customer code on the recording layer of the film and prints the customer code onto photographic papers and an index-print sheet. The customer codes on the film, the photographic papers, and the index-print sheet are compared to ascertain the customer's identification.

Photographic processing system

A silver halide photographic material is disclosed, said material having silver halide emulsion layers on a support, the emulsion in said silver halide emulsion layers containing magenta coupler represented by the following formula (I), said emulsion containing silver halide grains which have a (110) plane and/or a crystal plane having an edge running through substantially the center of a (110) plane, the silver halide composition of said grains being substantially made of silver bromide and/or silver iodobromide: ##STR1## where Z represents a group of the non-metallic atoms necessary for forming a nitrogen-containing hetero ring which may have a substituent; X is a hydrogen atom or a substituent which is capable of being eliminated upon reaction with the oxidation product of a color developing agent; and R is a hydrogen atom or a substituent.

Silver halide photographic material

A silver halide photographic light-sensitive materially having at least one silver halide emulsion layer comprising a magenta coupler represented by formula I and negative type silver halide grains having a core-shell structure which consists of:

Silver halide photographic light-sensitive material

A silver halide color photographic light-sensitive material comprising a support having arranged thereon at least two each of red-sensitive layers, green-sensitive layers and blue-sensitive layers, wherein, with respect to each of the red-sensitive layers, the blue-sensitive layers and the green-sensitive layers, there are not less than two silver halide layers having different sensitivities, said material satisfying the following four requirements:

Silver halide color photographic light sensitive material

A silver halide color photographic material having at least one silver halide emulsion layer on a support is disclosed. Said silver halide emulsion layer contains at least one of the 1H-pyrazolo [3,2-c]-S-triazole derived magenta couplers that have a substituent of the following formula at 3-position:

Silver halide color photographic material containing a 1h-pyrazole

Disclosed is a light-sensitive silver halide color photographic material comprising a light-sensitive multi-layer color photographic material having at least each one layer of blue-sensitive layer, green-sensitive layer and red-sensitive layer on a support, wherein;

Light-sensitive silver halide color photographic material

The present invention provides a photographic developer composition comprising a plurality of developer components, including an alkali agent, that are packed in two or more separate receptacles. At least one of the developer components, except the alkali agent, is encapsulated in an alkali soluble polymer, and is held in at least one receptacle that does not substantially contain the alkali agent.

Developer composition

A photographic material comprising at least one blue sensitive silver halide emulsion layer is disclosed. The silver density of the emulsion layer is not less than 4.0.times.10.sup.-1 g/cm.sup.3 and the dry thickness of the layer is not more than 4.0 .mu.m. A core/shell type silver halide emulsion and a high-speed reaction type scavenger for the oxidation products of a developing agent are preferably used for the emulsion layer. The photographic material has a high sensitivity and provides an image having a superior sharpness and resolution.

Silver halide photographic material with a specified silver density and

Disclosed is a light-sensitive silver halide photographic material comprising at least one layer of green-sensitive silver halide emulsion layer (GH), at least one layer of red-sensitive silver halide emulsion layer (RH) and a plural number of blue-sensitive silver halide emulsion layers with different sensitivities, provided on a support, which is characterized in that one of the said plural number of blue-sensitive silver halide emulsion layers is provided as a silver halide emulsion layer (BH) positioned at the farthest side from the support, at least one layer GH and at least one layer RH are provided between the layer BH and a blue-sensitive silver halide emulsion layer lower in sensitivity than the layer BH, and further fine grains of silver halide are contained in at least one of the said blue-sensitive emulsion layer of lower sensitivity and a layer adjacent thereto. The fine grains of silver halide may have a blue-sensitive sensitizing dye adsorbed on the surfaces thereof.

Disclosed is a light-sensitive silver halide color photographic material in which a DIR compound capable of releasing a diffusible development inhibitor or precursor thereof by the reaction with an oxidized form of a color developing agent is employed in combination with a non-diffusible dye and which sastisfies Condition A and B recited in the specification. By using the color light-sensitive material according to the present invention, the sharpness, particularly the edge effect (including the fringe effect and the border effect) of a photographic image has been greatly improved.

Light-sensitive silver halide color photographic material with

The present invention is to provide a method for uniforming a group of silver halide particles of a silver halide emulsion to be used in a silver halide photographic light-sensitive material into a group of particles which is monodispersive and whose crystal habit is tetradecahedral or octahedral so that the complication and instabilization of the conventional particles can be reduced to be processed. Namely, in a process for growing particles in which a water-soluble silver salt is added to a core emulsion and a silver halide is produced to add to the core, this method is to adjust the pAg values of an emulsion being applied to the abovementioned process to increase by not less than 0.3 multistepwise or continuously.

Method for the production of silver halide emulsion

There is disclosed a light-sensitive silver halide color photographic material having red-sensitive, green-sensitive and blue-sensitive emulsion layers, each layer consisting of two or more layers with different sensitivities on a support, wherein the layers are constituted so as to satisfy the following requirements (A), (B), (C) and (D): (A) of the respective emulsion layers having the highest sensitivities among the the red-sensitive, green-sensitive and blue-sensitive emulsion layers, the highest sensitivity blue-sensitive emulsion layer is provided on the side farthest from the support; (B) at least the the highest sensitivity red-sensitive emulsion layer and the highest sensitivity green-sensitive emulsion layer are provided between the the highest blue-sensitive emulsion layer and a blue-sensitive emulsion layer with lower sensitivity; (C) none of the respective red-sensitive, green-sensitive and blue-sensitive emulsion layers having the lowest sensitivities exists on the side farther than the low sensitivity blue-sensitive emulsion layer from the support; and (D) contained in at least one layer of the high sensitivity red-sensitive, green-sensitive and blue-sensitive layers, is a diffusion-resistant compound capable of forming a mobile dye through the coupling reaction with the oxidized product of a chromogenic developing agent. The light-sensitive material according to this invention exhibits excellent photographic characteristics such as graininess, sharpness and sensitivity.

Light-sensitive silver halide color photographic material having

A light-sensitive silver halide photographic material having silver halide emulsion layers on a support, wherein at least one layer of said silver halide emulsion layers contains surface latent image type mono-dispersed silver halide grains, and 50% or more of the silver halide grains contained in said at least one silver halide emulsion layer are regular surface latent image type mono-dispersed silver halide grains of tetradecahedral crystals whose external surfaces have crystal faces with Miller indices (100) and (111), the area ratio of said (100) face and said (111) face satisfying the relation represented by the correlation formula (I) shown below:

Light-sensitive silver halide photographic material

A silver halide color photographic material having blue-, green- and red-sensitive silver halide emulsion layers coated on a support is provided, each of said layers being composed of a plurality of sub-layers having different sensitivities. In said material, at least a red-sensitive silver halide emulsion sub-layer having high sensitivity is provided between a first green-sensitive silver halide emulsion sub-layer of high sensitivity and a second green-sensitive silver halide emulsion sub-layer having a lower sensitivity than said first green-sensitive sub-layer, said first green-sensitive sub-layer and/or said red-sensitive sub-layer with high sensitivity giving a maximum color density of formed dye in said material higher than 0.6 but not exceeding 1.3.

Silver halide color photographic material of high sensitivity and

Growing community of inventors

Hino, Japan

Toshifumi Iijima