Asahi Kasei Kogyo Kabushiki Kaisha

Takeki Matsui

Takeo Kimura

Minoru Akiyama

Tetsuo Shiga

Kageyasu Akashi

Yoshio Hayashi

Yoshinobu Ito

Keiji Kuboyama

Hidehiko Kobayashi

Kaoru Ohmura

Masaru Matsuura

An indium-antimony complex crystalline semiconductor consisting essentially of crystals of an indium-antimony compound and crystals of indium alone is disclosed. The atomic ratio of the total indium content to the antimony content in the semiconductor is in the range of from 1.1/1 to 1.7/1. A process for producing such semiconductor is also disclosed. In the process, the vapors of indium and antimony are deposited on a substrate in such a manner that the arrival rate ratio of indium to antimony is controlled to be within the range of from 1.1/1 to 1.7/1.

Indium-antimony complex crystal semiconductor and process for production

A post-activation type dry image forming material comprising (I) a silver salt component reducible to free silver upon light exposure and including silver iodide; (II) a redox reactive composition capable of making a visual change by a redox reaction of said composition, said reaction being initiated by heating in the presence of free silver; (III) an oxidizing agent for free silver which has an oxidizing capacity for free silver but is rendered photosensitive by heating and which, upon light exposure after said heating, is suppressed with respect to the oxidizing capacity for free silver and capable of catalytically promoting the redox reaction of said composition; and (IV) a photoreactive oxidizing agent, upon light exposure, capable of returning the reduced oxidizing agent for free silver to the original state. A post-activation type dry image forming material which is extremely excellent in stability of the raw image forming material, that is, can be stored in a light room for a time as long as a period of the order of years and which has high sensitivity can, for the first time, be realized by the ingenious combination of components. The effect of the interaction between the components, especially between the components (I), (III) and (IV) is noticeable in imparting to the present image forming material an extremely high stability of the raw image forming material.

Post-activation type dry image forming material

A mold-packaged magnetoelectric transducer element such as a Hall element or a magnetoresistance element comprises a magnetosensitive thin layer, electrodes formed on the thin layer for lead-out connection, an unwindowed film support, leads formed on one surface of the film support, conductive resin for connecting the electrodes and the leads, mold resin packaging on the one surface of the film support the remaining except parts of the leads.

Magnetoelectric transducer and fabrication method therefor

A process for preparing a silver salt of an organic carboxylic acid comprising reacting an alkali metal salt of the organic carboxylic acid with a water-soluble silver salt, and wherein there is used as the reaction solvent a mixture consisting of at least one water-soluble or partially water-soluble C.sub.3 -C.sub.8 alcohol and water and having a mixing volume ratio of 1/5 to 5/1. The silver salt of the organic carboxylic acid prepared in high yield according to the process of the present invention is in uniformly finely divided form of high purity and suitable for use in photographic materials.

Process for preparing silver salt of organic carboxylic acid

A novel dry image forming material comprising (a) a non-photosensitive organic silver salt oxidizing agent, (b) a reducing agent for silver ions, (c) a photosensitive silver halide or a photosensitive silver halide-forming component capable of forming a photosensitive silver halide by the reaction thereof with said organic silver salt oxidizing agent, and (d) a substituted 3-pyrazolin-5-one. The dry image forming material has improved sensitivity and storage stability of the raw image forming material and can form thereon an excellent black tone image.

Dry image forming material

A heat developable photosensitive material comprising:

Growing community of inventors

Fuji, Japan

Takeki Matsui