Abstract:
PROBLEM TO BE SOLVED: To provide an organic coloring agent excellent in ultraviolet resistance and to provide a colored coating film for glass excellent in ultraviolet resistance and in a recycling property. SOLUTION: The organic coloring agent has both a minute particle of an organic pigment and an ultraviolet blocking substance having ultraviolet blocking performance by coating the minute particle of the organic pigment. In a colored coating film for glass formed on a glass substrate, the colored coating film for glass has the above organic coloring agent and a matrix dispersed with the organic coloring agent. The organic coloring agent prevents exposing the organic pigment to ultraviolet rays by coating the minute particle of the organic pigment with the ultraviolet blocking substance having ultraviolet blocking performance. As a result, the organic pigment can be prevented from fading based on deterioration by ultraviolet rays. Since the organic coloring agent in the colored coating film for glass is dispersed in the film, it can be prevented that the organic pigment is deteriorated and faded by ultraviolet rays which transmit the colored film for glass. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a method of producing a CZTS compound semiconductor sintered compact, capable of producing a dense CZTS compound semiconductor sintered compact at a firing temperature lower than that in a conventional method.SOLUTION: The method of producing a CZTS compound semiconductor sintered compact includes a step of firing a compact to be sintered containing Cu, Zn, Sn, and S under an environment where a sintering additive is present. The sintering additive contains a germanium compound.
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of CuSnSparticles that can manufacture CuSnSparticles of uniform composition.SOLUTION: A manufacturing method of CuSnSparticles includes a mixed solution preparing step of preparing a mixed solution by mixing at least a copper ion source, a stannum ion source, a ligand that suppresses an ion-binding reaction, and water, a precursor solution preparing step of preparing a precursor solution of a pH of 2 or higher and 8 or lower by mixing at least the prepared mixed solution and a sulfur ion source, and a sealing step of putting the prepared precursor solution in a container and sealing the container with the precursor solution put therein, and a hydrothermal synthesis reaction step of carrying out a hydrothermal synthesis reaction in the sealed container.
Abstract:
PROBLEM TO BE SOLVED: To provide an electroconductive material having a reduced electrical resistivity and a method for producing the same.SOLUTION: The electroconductive material comprises: carbon nano-tubes each having at least one open end; and iodine added to the carbon nano-tubes. The percentage of the mass of the iodine occupying in the total mass of the carbon nano-tubes and the iodine is 17% or more. The method for producing the electroconductive material comprises: a step of bringing the carbon nano-tubes each having at least one open end into contact with an electrolytic solution containing an iodine source; and a step of using the carbon nano-tubes brought into contact with the electrolytic solution for an action electrode and performing electrolytic oxidation.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a semiconductor film capable of manufacturing a ZnMgO film in which an additive amount of Mg to Zn is more than 20 mol% using a liquid phase film formation method.SOLUTION: A method for manufacturing a semiconductor film comprises: a first step of preparing a mixture containing zinc hydroxide and magnesium hydroxide; a second step of attaching the mixture to a film-formed member; and a third step of heating the film-formed member attached with the mixture from 300°C to 400°C in 100/30 minutes.
Abstract:
PROBLEM TO BE SOLVED: To provide an elastic wave propagation body provided with an elastic wave reflecting section having a high reflectance to an elastic wave with a particular frequency and a waveguide and for efficiently propagating the elastic wave with a desired frequency through the waveguide. SOLUTION: The elastic wave propagation body is a structure provided with a structure section having a regular two-dimensional skeleton or three-dimensional skeleton, an elastic wave reflection section comprising other section than the structure section, and the waveguide surrounded by the elastic wave reflection section, and for propagating the elastic wave through the waveguide, and a component material of the structure section has an acoustic impedance different from that of a configuration material of the other section. The ratio of the acoustic impedance of the configuration material (metallic aluminum or the like) of the structure section to the acoustic impedance of the configuration material (metallic copper or the like) of the other section than the structure section is preferably 1.1 or over. The lamination of the elastic wave reflection sections indicates a high transmission characteristic over a broad frequency band independently of an incident direction of the elastic wave. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a driving method capable of improving the durability of a piezoelectric element built in a piezoelectric actuator. SOLUTION: In a method of driving a piezoelectric actuator having a piezoelectric element driving telescopically according to the energizing current, a pulse current of a rectangular wave is used as the energizing current, which is energized at a frequency under 61kHz. The piezoelectric element preferably comprises a stacked piezoelectric element formed by stacking a piezoelectric ceramic layer and an inner electrode layer alternately. The piezoelectric element is preferably imparted with a preload acting in a direction contracting the piezoelectric element beforehand. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an infrared light-screening member wherein prescribed functional coating layers are formed on the surfaces of ZnO particles and which can thereby prevent the clouding with the ZnO particles due to chemical agents and can screen ultraviolet light, and the like. SOLUTION: The composite particles which can be dispersed and held in a transparent matrix, exhibit an infrared light-screening ability, and are used for screening the infrared light, are characterized by comprising the ZnO particles 1 and the functional coating layers 2 having the prescribed functions and coated on the surfaces of the ZnO particles 1. The functional coating layers 2 have, for example, a function capable of preventing the clouding with the ZnO particles 1 due to the chemical agents, a function capable of screening ultraviolet light, and a function capable of preventing the decomposition of organic materials due to the ZnO particles. COPYRIGHT: (C)2004,JPO