摘要:
A method of forming a (Ba, Sr) TiO3 high dielectric constant thin film with sufficient coverage is provided. A Ba material, an Sr material and a Ti material including bis (t-butoxy) bis (dipivaloylmethanate) titanium are dissolved in an organic solvent to obtain a solution material. The solution material is vaporized, so that material gas is obtained. A (Ba, Sr) TiO3 thin film is formed on a substrate by CVD reaction using the material gas.
摘要:
A silver halide photographic material is disclosed, comprising a support having thereon photographic constituent layers with at least one layer thereof containing water-insoluble polymers, wherein at least one of the water-insoluble polymers is a polymer containing an aromatic ring and having a number average molecular weight of 4,000 or less and the weight percentage of the aromatic ring in the polymer molecule is 40% or more.
摘要:
There is disclosed a silver halide color photographic light-sensitive material which excels in a color reproduction and a light fastness at a low density part through a high density part and which is improved in a Y-stain at a background part. The silver halide color photographic light-sensitive material comprises a support and provided thereon at least one photographic constitutional layer, wherein at least one layer of the above photographic constitutional layers contains at least one of the compounds represented by the following Formula (I) and a compound represented by the following Formula (II) in the same layer: ##STR1## wherein R represents a hydrogen atom or a substituent; Z.sub.a, Z.sub.b, and Z.sub.c each represent any group of methine, substituted methine, .dbd.N--, or --NH--; Y represents a hydrogen atom or a group capable of splitting off upon a coupling reaction with an oxidation product of a developing agent; provided that a dimer or a polymer may be formed via R, Y, or Z.sub.a, Z.sub.b or Z.sub.c when each is a substituted methine: ##STR2## wherein X and Y each represent a hydrogen atom, an alkyl group, an alkoxy group, or an acyl group; Z represents --CO-- or --COO--; and m, l and p each represent an integer of 1 to 4.
摘要:
A circuit board comprising: a core material made from magnesium, a magnesium alloy, or a magnesium-based composite material, and an electric circuit formed on the core material. A process for producing the circuit board comprises the steps of (1) forming an electrodeposition-painted coating on such a core material, (2) forming a polyimide resin coating on the electrodeposition-painted coating, (3) forming a via hole extending through the resin coating to the underlying electrodeposition-painted coating, (4) etching and removing the electrodeposition-painted coating in the region exposed in the bottom of the via hole while masking the other region with the resin coating thereby extending the via hole to the core material, (5) forming a metal film on at least a free surface of the resin coating and an inner surface of the extended via hole, and (6) etching the metal film by using a photoresist mask to form a conductor layer having a predetermined pattern.
摘要:
A magnetic recording medium comprising a non-magnetizable substrate and a magnetic layer formed on the substrate, in which the magnetic layer comprises not more than 13% by weight of one or more of rare earth elements of Y, La, Ce, Pr, Nd, Sm, Gd, Tb or Dy, 3-13% by weight of oxygen, balance of Co and inevitable impurities. The magnetic layer may contain less than 22% by weight of Ni. The magnetic recording medium has a favorable corrosion resistance and excellent magnetic properties.
摘要:
In a chlorine ion-selective electrode for analysis of chlorine ion in a liquid sample which comprises a silver metal layer, a silver chloride layer and a chlorine ion-selective membrane, superposed in order, the chlorine ion-selective membrane containing a hydrophobic organic polymer as a binder, the improvement wherein the hydrophobic organic polymer is a vinyl acetal polymer such as vinyl butyral or a copolymer of a vinyl acetal and at least one monomer copolymerizable therewith such as a copolymer of vinyl butyral and vinyl alcohol.
摘要:
A densitometer for measuring a concentration of matter in a fluid system comprised of liquids and suspended and/or floating matter such as, for example, a densitometer for measuring the concentration of oil in bilge water that includes suspended and/or floating solid material. Two emulsifying conditions of the system are produced by first emulsification with a relatively high power emulsifying action and then a relatively low power emulsification. The amount of light which penetrates the system is a function of the turbidity which varies with the intensity of the emulsification. The concentration of oil in water, for example, in bilge water, is a function of the ratio of the amount of light which passes through the system in the two turbid states.
摘要:
A heater tube for use in a fluid heating device, which is used, for example, as a thermal decomposing device of hydrocarbons. The heater tube has a dumbbell shape in cross section.
摘要:
A yoke of an actuator for driving a shift moving frame in a pitch direction is shaped such that when the shift moving frame is moved in the pitch direction, a magnetic attractive force for reducing a moment acting on the shift moving frame due to a magnetic attractive force generated between the magnet and the yoke of an actuator for driving the shift moving frame in a yaw direction is generated between the yoke and the magnet of the actuator for driving in the pitch direction.
摘要:
To include a first step of forming a protection film on a surface of a translucent substrate, a second step of exposing the surface of the translucent substrate by forming a plurality of openings arranged regularly at a certain pitch in the protection film, a third step of forming parabolic irregularities including substantially hemispherical depressions arranged substantially uniformly on the surface of the translucent substrate by performing isotropic etching by using the protection film having the openings formed as a mask and under conditions in which the protection film has resistance to the surface of the translucent substrate on which the protection film is formed, and a fourth step of removing the protection film, wherein at the fourth step, the isotropic etching is continued after formation of the parabolic irregularities to separate the protection film from the translucent substrate and round apexes of protruded portions in the parabolic irregularities.