Abstract: The present invention relates to an acrylic pressure-sensitive adhesive resin composition including an organic-inorganic hybrid polymer synthesized from the following (a) to (d): (a) fine silica particles having silanol groups on a surface thereof; (b) a siloxane having at least one selected from a group consisting of an alkoxysilyl group and a silanol group at a molecular end thereof; (c) a trialkoxysilane represented by the following general formula (I) in which R1 represents a C1-6 alkyl group, and R1? represents a hydrogen atom or a methyl group; and (d) a (meth)acrylic monomer:

Abstract: Provided are a spiral type membrane element that can re-collect the electric power that is used in a good manner, and a spiral type membrane filtering device having the same. The spiral type membrane element comprises a power generating section that generates electric power by using a liquid, and an electric power outputting section that outputs, either in a wired manner or in a wireless manner, the electric power supplied from said power generating section. The electric power that is generated in the power generating section using the liquid (raw water, permeated water, or concentrated water) can be output from the electric power outputting section in a wired manner or in a wireless manner. Therefore, the electric power that is output from the aforesaid electric power outputting section can be used in an electric component disposed outside or can be stored into a capacitor section disposed outside.

Abstract: Provided are a spiral type membrane filtering device by which an electric component can be re-used and a mounting member, as well as a membrane filtering device managing system and a membrane filtering device managing method using the same. An interconnector (42) attachable and detachable to a membrane element is provided with a sensor that detects the property of liquid such as raw water or permeated water that flows within a membrane filtering device, or a power generating section (26). Therefore, even if the membrane element is to be replaced, the sensor or the power generating section (26) can be re-used by re-mounting the interconnector 42 onto a new membrane element. Also, since there is no need to add a change to the membrane element, a conventional membrane element can be used as it is.

Abstract: Provided are a spiral type membrane element that can ensure a larger amount of electric power without performing a cumbersome work and a spiral type membrane filtering device having the element, as well as a membrane filtering device managing system and a membrane filtering device managing method using the device. The spiral type membrane element comprises a sensor for detecting a property of liquid, a power generating section that generates electric power by using said liquid, and a wireless transmitting section that receives the electric power supplied from said power generating section and wirelessly transmits a detection signal from said sensor. By generating electric power in the power generating section with use of the liquid detected by the sensor, a larger amount of electric power can be ensured without performing a cumbersome work.

Abstract: To provide a method for manufacturing a piezoelectric resonator which can widen the range of frequency adjustment while saving metal thereby suppressing reduction of the yields when forming a metal film for frequency adjustment at the tip of an vibrating arm. The method of manufacturing the piezoelectric resonator according to the present invention includes the steps of: bringing a substrate in which an outside shape of a piezoelectric oscillating piece is formed, into contact with an etching solution; forming grooves in a plurality of vibrating arms using a mask having an aperture at the portion corresponding to the groove, and having a metal film formed on the whole surface except the aperture; and thereafter, forming a resist mask on the surface of the substrate so that resist is left at the tip of the vibrating arms which will be a formation area of a metal film for frequency adjustment so as to remove the metal film by etching.

Abstract: A silicone resin composition containing (i) a silicone resin and (ii) fine metal oxide particles without having a reactive functional group or with a protected reactive functional group on the surface thereof (fine metal oxide particles B), wherein the silicone resin is obtained by carrying out a polymerization reaction between a silicone derivative having an alkoxysilyl group at an end of a molecule and a molecular weight of from 200 to 3000, and fine metal oxide particles having a reactive functional group on the surface thereof (fine metal oxide particles A), and wherein the fine metal oxide particles B are dispersed in the silicone resin (Embodiment 1); a silicone resin composition obtained by carrying out a polymerization reaction between a silicone derivative having a trifunctional alkoxysilyl group at an end of a molecule, and fine metal oxide particles having a reactive functional group on the surface thereof, wherein the silicone derivative contains two or more kinds of silicone derivatives each havi

Abstract: A composition for a silicone resin containing a poly(methyl silsesquioxane) derivative having an alkoxysilyl group at an end of a molecule, and fine metal oxide particles having a reactive functional group on the surface thereof, wherein the composition further contains at least one compound selected from the group consisting of disilanol derivatives having silanol groups at both ends of a molecule and a monofunctional silane derivative represented by the formula (II): wherein X is an alkoxy group or a halogen atom. The silicone resin composition of the present invention can be suitably used as, for example, materials for encapsulating photosemiconductor elements for use in backlights for liquid crystal displays, traffic lights, outdoor big displays, advertisement sign boards, and the like.

Abstract: An object of the present invention is to provide a thermally conductive sheet having an improved electrical insulating property and a method of producing the same. A thermally conductive sheet includes a resin composition that contains a silicone resin and inorganic particles, wherein the inorganic particles include metal oxide particles that have a particle diameter of 1-100 nm and are dispersed in the silicone resin while being chemically bonded to the silicone resin.

Abstract: A composition for an optical waveguide is provided which contains no halogen atom and has no light absorption band in a visible to near-infrared spectral range. A method of preparing the composition is also provided. The composition includes: (A) a fine particulate zirconium oxide material including zirconium oxide fine particles, and a silicone oligomer and a silicone oligomer polymer bonded to outer peripheral surfaces of the zirconium oxide fine particles; and (B) a photoacid generator. For preparation of the composition, the fine particulate zirconium oxide material (A) is prepared by mixing a silicone oligomer in an aqueous dispersion of zirconium oxide fine particles, polymerizing the silicone oligomer in an acidic pH range to provide a silicone oligomer polymer, and bonding the silicone oligomer and the silicone oligomer polymer to outer peripheral surfaces of the zirconium oxide fine particles. Then, the photoacid generator (B) is blended with the fine particulate zirconium oxide material (A).

Abstract: A silicone resin composition comprising fine inorganic particles, wherein the silicone resin composition is obtained by a step comprising reacting (A) a bifunctional alkoxysilane and/or a dual end-disilanol, and (B) a compound having an alkoxysilyl group at an end of a molecule, in the presence of a dispersion of said fine inorganic particles. The silicone resin composition of the present invention can be suitably used for, for example, encapsulating materials, coating materials, molding materials, surface-protecting materials, adhesive agents, bonding agents, and the like.

Abstract: A resin composition comprising fine metal oxide particles, wherein the resin composition is obtained by a step comprising subjecting (a) a silicon-containing compound represented by the formula (I): wherein each of R1 and R2 is independently an alkyl group or a phenyl group; and each of X1 and X2 is independently an alkyl group; and (b-i) a poly(dimethyl siloxanes) containing a methoxy group in an amount of from 10 to 50% by weight, or (b-ii) a silicon-containing compound represented by the formula (II): wherein each of R3 and R4 is independently a methyl group, an ethyl group, or a propyl group, to a reaction, in the presence of a dispersion of the fine metal oxide particles. The resin composition of the present invention can be suitably used for, for example, encapsulating materials, coating materials, molding materials, surface-protecting materials, adhesive agents, bonding agents, and the like.

Abstract: A silicone resin composition obtainable by reacting a bifunctional alkoxysilane and a trifunctional alkoxysilane in the presence of a dispersion of fine metal oxide particles. The silicone resin composition is suitably used in backlights for liquid crystal displays, traffic lights, outdoor big displays, advertisement sign boards, and the like.

Abstract: To provide a method for manufacturing a piezoelectric resonator which can widen the range of frequency adjustment while saving metal thereby suppressing reduction of the yields when forming a metal film for frequency adjustment at the tip of an vibrating arm. The method of manufacturing the piezoelectric resonator according to the present invention includes the steps of: bringing a substrate in which an outside shape of a piezoelectric oscillating piece is formed, into contact with an etching solution; forming grooves in a plurality of vibrating arms using a mask having an aperture at the portion corresponding to the groove, and having a metal film formed on the whole surface except the aperture; and thereafter, forming a resist mask on the surface of the substrate so that resist is left at the tip of the vibrating arms which will be a formation area of a metal film for frequency adjustment so as to remove the metal film by etching.

Abstract: A crystal unit comprises an AT-cut crystal blank, and an excitation electrode formed on each of opposing main surfaces of the crystal blank in an oscillation region of the crystal blank. The ratio b/a is 0.014 or less, and preferably 0.012 or less where a represents the thickness of the crystal blank in the oscillation region and b represents the thickness of the excitation electrode. The thickness a is typically 5 ?m or less.

Abstract: A crystal unit has a crystal blank having a hole defined in at least one principal surface thereof, the crystal blank having a region of a reduced thickness including the hole, the region serving as a vibrating region, excitation electrodes disposed respectively on opposite principal surfaces of the crystal blank in the vibrating region, extension electrodes extending respectively from the excitation electrodes to respective opposite ends of one side of the crystal blank, and a casing having a step formed therein. The opposite ends of the one side of the crystal blank are fixed to the step by a joining member. The crystal blank has a notched portion defined therein between the one side and the vibrating region, the notched portion extending from at least one transverse edge of the crystal blank in a transverse direction of the crystal blank.

Abstract: A crystal unit comprises an AT-cut crystal blank, and an excitation electrode formed on each of opposing main surfaces of the crystal blank in an oscillation region of the crystal blank. The ratio b/a is 0.014 or less, and preferably 0.012 or less where a represents the thickness of the crystal blank in the oscillation region and b represents the thickness of the excitation electrode. The thickness a is typically 5 ?m or less.

Abstract: A crystal unit has a crystal blank having a hole defined in at least one principal surface thereof, the crystal blank having a region of a reduced thickness including the hole, the region serving as a vibrating region, excitation electrodes disposed respectively on opposite principal surfaces of the crystal blank in the vibrating region, extension electrodes extending respectively from the excitation electrodes to respective opposite ends of one side of the crystal blank, and a casing having a step formed therein. The opposite ends of the one side of the crystal blank are fixed to the step by a joining member. The crystal blank has a notched portion defined therein between the one side and the vibrating region, the notched portion extending from at least one transverse edge of the crystal blank in a transverse direction of the crystal blank.

Abstract: The invention relates to a new polymorphic pigmentary form of phthalocyanines, the preparation therof by salt-milling a phthalocyanine crude in the presence of a water-soluble neutral organic liquid, and some uses thereof. These phthalocyanines are stable &bgr;-like mixed-phase (the &agr; phase being totally absent) and have excellent pigmentary properties, which makes them suitable for example as pigments for electrophotographic toners. wherein M is two hydrogens or monovalent metals, a bivalent metal, or a bivalent oxometal, hydroxymetal or halogenometal moiety, with the proviso that the metal is not copper, and each X independently from all others is hydrogen or halogen.