Abstract: A novel semiconductor device having an oxide semiconductor layer between an amorphous silicon hydride and a metallic layer has been found to have an excellent collection efficiency for light, particularly, in the range of short wavelengths and a high energy conversion efficiency as compared with the conventional Schottky barrier semiconductor device and the semiconductor device having a MIS structure. Further, it has been found that the present novel semiconductor device has an excellent storage stability for a long period of time.

Abstract: A heat developable silver image forming material comprising:(a) an organic silver salt oxidizing agent;(b) a compound or a composition capable of forming a photosensitive silver compound by reaction with the organic silver salt oxidizing agent (a);(c) a reducing agent for silver ion; and(d) a compound having a unit of ##STR1##

Abstract: Vesicles are suspended in a lipophilic ion solution and the lipophilic ion concentration is changed by the permeation of the lipophilic ions into the vesicles. An electrode selectively responsive to the lipophilic ions is immersed in the suspension to detect the time-change rate of the electrode potential, thereby to obtain a change in the lipophilic ion concentration with respect to time, from which are measured membrane characteristics of the vesicles, such as the permeability of a vesicular membrane to the lipophilic ions.

Abstract: An aluminum-halogen cell comprising aluminum as an anode active material and a halogen compound as a cathode active material characterized in that the layer containing the cathode active material further comprises at least one stabilizer selected from the group consisting of magnesium halides, zinc halides, organic carboxylic acids and their anhydrides, aluminum or more basic metallic salts of perhaloid acids and quaternary ammonium salts shows only slight lowering in output voltage at initial discharge when continuously discharged under a load and can give high discharge output for a remarkably long period of time.

Abstract: A novel imaging material comprising a substrate; a lead layer thereon including at least 20% by weight of lead and having a substantially dome shaped grain structure; and a stabilizing layer formed on said lead layer and comprising a specific metallic element or an organic polymer. The imaging material has a gradation, an excellent resolution and an improved storage stability. The imaging material can form an image thereon by a dry process even in a light room without the conventional development step.

Abstract: A novel dispersion imaging material comprising a substrate, a sublayer thereon comprising at least 70% by weight of a member selected from palladium, gold, germanium and combinations thereof and having a thickness of 5 A to 200 A, and a main imaging layer on said sublayer comprising at least 50% by weight of tin, and optionally as the outermost layer a protective layer comprising an organic polymer. The sublayer modifies the layer structure of the tin-based main imaging layer. The imaging material has a high safety in respect of toxicity as well as an excellent gradation and a high sensitivity. The imaging material can form thereon an image by a dry process even in a light room without the conventional development and fixation steps.

Abstract: A dry image forming material comprising:(a) an organic silver salt oxidizing agent;(b) a photosensitive silver compound or a component capable of forming a photosensitive silver compound by the reaction with the organic silver salt oxidizing agent (a);(c) a reducing agent for silver ion; and(d) at least one compound selected from the group consisting of .alpha.,.alpha.,.alpha.',.alpha.'-o-tetrabromoxylene, .alpha.,.alpha.,.alpha.',.alpha.'-m-tetrabromoxylene, .alpha.,.alpha.,.alpha.',.alpha.'-p-tetrabromoxylene, 1,2-diiodoethane and tribromoacetic acid.

Abstract: Deposited on a glass or ceramic substrate for a thin-film microcircuit board such as a hybrid IC board or a transparent electrode is a thin-film laminate, which comprises a dispersion metal thin-film dispersible and evaporable upon application of an energy above a threshold value and an electrical property-imparting film defining a conductor or a resistor. Then a high intensity of light having an energy sufficient to cause dispersion is applied selectively on the thin-film laminate, thereby removing exposed portions of the thin-film laminate as a result of dispersion and evaporation thereof. Unexposed portions of the thin-film laminate provide a desired pattern. The electrical property-imparting film is a thin-film of noble metal such as gold, silver or platinum or a thin film of transparent electrode material such as SnO.sub.2 or In.sub.2 O.sub.3, which is not easily dispersible upon application of the above energy.

Abstract: A thin metal-halogen cell which comprises an electroconductive substrate, an anode active material layer of thin metal film formed on the base plate, a solid electrolyte layer formed on the anode active material, a cathode active material layer comprising a halogen, adhesive and carbonaceous powder, and an electroconductive plastic film, the latter two being laminated on the solid electrolyte layer in this order can be produced by using a step of forming thin films such as vacuum evaporation coating or sputtering and a step of laminating by using an adhesive. Thus, ultra-thin cells having high power and a thickness of 1 mm or less can be produced easily and inexpensively. When a separator and a barrier layer are sandwiched between the cathode active material layer and the solid electrolyte layer, shelf life of the cell is improved remarkably.

Abstract: A heat developable photosensitive material comprising:(a) an organic silver salt oxidizing agent;(b) a halogen molecule or an organic haloamide compound;(c) a reducing agent for silver ion; and(d) a nitrogen-containing organic base whose pKa of the conjugate acid ranges from 0.5 to 10.0 and the nitrogen-containing organic base having, in its molecule, no acidic proton or a nitrogen-containing organic base whose pKa of its conjugate acid ranges from 0.5 to 10.0 and the nitrogen-containing organic base having, in its molecule, an acidic proton whose pKa is more than 12.

Abstract: A dry image forming material comprising:(a) a non-photosensitive organic silver salt oxidizing agent;(b) a reducing agent for silver ion; and(c) a compound of the formula, ##STR1## wherein R.sup.1 and R.sup.2 independently represent an aryl group or a substituted aryl group; and X represents a chlorine atom, a bromine atom or an iodine atom.

Abstract: A dry image forming material comprising (a) a non-photosensitive organic silver salt oxidizing agent, (b) a reducing agent for a silver ion and (c) a halogen molecule, which material is excellent in that a high sensitivity can be obtained and the occurrence of fog is extremely small. The sensitivity can be further improved by incorporation of a halogen ion source in addition to the halogen molecule. Furthermore, the dry image forming material can be improved, with respect to light stability of the raw image forming material and stabilities to heat and humidity, by incorporation of a nickel compound and/or a cobalt compound. In the dry image forming material of this invention, further incorporation of a carboxylic acid anhydride exerts a remarkable anti-fogging effect. The dry image forming material of this invention is non-photosensitive under normal lighting conditions and therefore, can be prepared, handled and stored in a light room.

Abstract: A pattern of a character, numeral or symbol on an optical mask is selected in accordance with the designation by a character designator and irradiated with light from a printing light source. The light is converted into a light of the pattern of the designated character, numeral or symbol by a optical mask, the pattern being of a size ranging from about 20 to about 500 .mu.m, and the converted light reaches a thin layer of a dispersion imaging material formed on a recording medium to cause at least dispersion of the thin layer, thereby to print the pattern of the designated character, numeral or symbol. A recording medium support and the position of irradiation of the recording medium with the converted light are moved by a drive relative to each other, so that characters, numerals and symbols can be printed on the recording medium one by one.

Abstract: A novel printed circuit board with a circuit of high precision having a polymer coat layer between a base and a dispersion imaging material layer and a pattern circuit on undispersed portions of the dispersion imaging material layer. Such a printed circuit board is prepared by a simplified process which comprises essentially two steps, namely, exposure of the dispersion imaging material through a circuit pattern mask to obtain a pattern circuit of the unexposed portions and conductive metal plating wherein said unexposed portions are selectively deposited with the conductive metal due to the specific effect of provision of the polymer coat layer directly under the dispersion imaging material layer.

Abstract: A dry image forming material with an increased sensitivity, characterized by including a) an organic silver salt oxidizing agent, b) a reducing agent and c) a compound or a composition which comprises a halogen component and an organic component containing an element except for sulfur belonging to the IV group, V group or VI group of the periodic table and having an atomic number of 14 or more, and is adapted, by heating, to interact with the silver ion of a) to form a photosensitive interaction product. The dry image forming material according to this invention is of the type of post-activation and can be prepared, stored and handled under normal lighting conditions. The post-activation type dry image forming material according to this invention can be spectrally sensitized by incorporation of a sensitizing dye.

Abstract: A photopolymerizable composition comprising a polyester-polyether block polymer which is useful for preparing relief images and printing plates.

Abstract: A photopolymerizable composition comprising a polyester - polyether block polymer which is useful for preparing relief images and printing plates.

Abstract: Novel method of free radical photography in which a colored image excellent in photographic properties such as gradient, resolving power, image stability, amount of fogs and contrast can be obtained while shortening the treating time and simplifying the treatment steps. The method comprises exposing a photosensitive composition comprising a film-forming transparent plastic, a compound capable of forming free radicals upon irradiation with light and a color former capable of reacting with these free radicals to produce color, to a light flash with a light quantity of 5 to 500 millijoules per square centimeter for a flashing time of 0.0001 to 0.005 second through a negative or positive original.

Abstract: A method of obtaining urokinase directly from human urine comprising contacting human urine with an acrylonitrile polymer of a unique porous structure formed at the time of polymerization for formation of the polymer and having a porosity of not less than 10% and a specific surface area of .Iadd.not less than .Iaddend.5 m.sup.2 /g. and subsequently eluting the urokinase adsorbed on the polymer. The acrylonitrile polymer employed in the method of the present invention has an excellent adsorption activity to urokinase and therefore, with use of an extremely small amount of the adsorbent, the satisfactory results can be obtained. Moreover, the porous polymer of the present method can also be utilized for purification of low purity crude urokinase obtained by the prior art methods.