Abstract:
PROBLEM TO BE SOLVED: To provide a metal oxide powder which, when mixed into a resin, does not agglomerate, is homogeneously dispersed, and does not increase the viscosity of the resultant resin composition; a method for producing the same; and a low-expansibility resin composition excellent in resistances to moisture absorption and solder cracking. SOLUTION: The surface of this metal oxide powder is treated with a silazane and a silane coupling agent; and the production method for the metal oxide powder and the composition comprising the powder and a resin are also provided. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide an amorphous silica porous material high in the volume ratio of microfine pores, and to provide a method of manufacturing the material, a molecular sieve membrane using the amorphous silica porous material, a catalyst carrier and an adsorbent. SOLUTION: In the amorphous silica porous material, total volume of the fine pore having ≤2 nm diameter is ≥70% per the volume of total fine pores. Total volume of the fine pore having ≤1 nm diameter can be ≥90% per total volume of the fine pore having ≤2 nm diameter. The amorphous silica porous material can be controlled to have 0.1-0.6 mL/g fine pore volume and 200-800 m 2 /g specific surface area. The method of manufacturing the amorphous silica porous material is performed by heating polysilazane having 1-3C alkoxy group in the molecule at 400-1000°C. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To enhance reliability in measuring piston sliding characteristics. SOLUTION: In a piston sliding characteristic measuring apparatus 10, a piston ring PR is attached to a dummy piston 70 under the same condition as a piston head, and the dummy piston 70 is incorporated into a cylinder liner 61 of a dummy cylinder jig 62. The dummy piston 70 is fixed in place and the cylinder liner 61 is made to reciprocate linearly along a centerline, together with the dummy cylinder jig 62. Thus, the piston ring and the cylinder liner are both held under a frictional condition similar to that of a true engine by the linear reciprocation of the cylinder liner 61, with the piston ring PR held fixed in place together with the dummy piston 70. In this case, a motor 13 for driving the dummy cylinder jig 62 is disposed on a motor unit 12 which is installed on a floor face independently of the frame of the dummy piston. A piston load produced in the frictional condition is measured via a load detector 80 provided on the fixed dummy piston 70. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a photoelectric conversion element having a quantum dot array where quantum dots are arranged regularly and three-dimensionally, and to provide a manufacturing method therefor.SOLUTION: The manufacturing method of a photoelectric conversion element having a three-dimensional quantum dot array includes a laminate formation step for forming a laminate having a plurality of laminated tunnel junction semiconductor layers, a patterning step for forming a protrusion and recess pattern having multiple protrusions for quantum dots on the upper surface of the laminate, and a trench formation step for forming trenches penetrating the plurality of semiconductor layers by cutting the recesses formed in the patterning step. A photoelectric conversion element manufactured by the manufacturing method is also provided.
Abstract:
PROBLEM TO BE SOLVED: To supply a film superior in durability and reliability with a low thermal conductivity, a low heat capacity, and free from peeling, fall-off, or the like. SOLUTION: An engine combustion chamber structure is configured such that, on an inner surface of an engine combustion chamber, there is formed an anode oxide film with thickness of greater than 20 μm and equal to or less than 500 μm and a porosity of equal to or greater than 20%. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To completely disperse metal oxide fine particles of a high concentration in an epoxy resin while eliminating the reaction of the epoxy caused by heating for removing a solvent. SOLUTION: The epoxy resin composition is obtained by compounding ≥60 pts. wt. metal oxide fine particles obtained by firing a metal based on the whole amount and contains the metal oxide fine particles primarily dispersed therein. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a liquid sealing resin composition which has excellent flowability and moldability and is suitable for high density mounting, and to provide a method for producing the same. SOLUTION: This liquid sealing resin composition is characterized by comprising silica particles comprising 15 to 90 wt. % of spherical silica particles having an average particle diameter of 0.1 to 0.6μm and 10 to 85 wt. % (the total amount of both the kinds of the silica particles is 100 wt. %) of spherical silica particles having an average particle diameter of 1 to 6.5μm and a liquid epoxy resin (for example, a bisphenol A type epoxy resin). The maximum particle diameter of the silica particles is ≤10μm. The liquid sealing resin composition may further contain a curing agent (for example, an acid anhydride-based curing agent), a curing accelerator, a surface-treating agent (coupling agent), and the like. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a piezoelectric ceramic composition which has a high Curie temperature, can practically be used as a piezoelectric ceramic element material and does not comprise lead compounds, and to provide a method for producing the same. SOLUTION: The leadless piezoelectric ceramic composition is expressed by compositional formula of x(Bi 1/2 Na 1/2 TiO 3 )+y(BaTiO 3 )+z(CaTiO 3 ), wherein x+y+z=1. In the triangular coordinates with these components as apices, the points expressed by the above x, y and z are defined as the following points A, B and C. The piezoelectric ceramic composition is present within the range surrounded by the points A, B and C when the A point satisfies the requirements of (x=0.500, y=0.000 and z=0.500), the B point satisfies the requirements of (x=0.999, y=0.000 and z=0.001), and the C point satisfies the requirements of (x=0.500, y=0.499 and z=0.001). The lead-free piezoelectric ceramic element has a reduced load on natural environment. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To obtain a reflection mirror which hardly gives rise to double images, etc., and has high quality at a low cost. SOLUTION: A photocatalyst hydrophilic film 16 is formed by dissolving a solute having silicon dioxide which is the basic component of the film 16, applying or dropping a film stock solution mixed with photocatalyst particles 18 onto the surface of a glass substrate 12 and rotating the glass substrate 12 in this state to thinly spread the film stock solution over the entire part of the surface of the glass substrate 12 and further calcining the substrate. The manufacturing cost is therefore made lower than by vacuum vapor deposition and sputtering. Basically the film stock solution is mixed with the photocatalyst particles 18 but the film 16 is formed of the silicon dioxide and therefore the refractive index thereof is small. As a result, the interference, etc., of the light are reduced or prevented and the occurrence, etc., of the so- called 'double images' can be reduced or prevented. COPYRIGHT: (C)2004,JPO