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280results about How to "Relative density is small" patented technology

Lithium-containing composite oxide and its production method

The present invention provides a lithium-containing composite oxide for a positive electrode for a lithium secondary battery, which has a large volume capacity density and high safety, and excellent durability for charge and discharge cycles and charge and discharge rate property, and its production method.The lithium-containing composite oxide is represented by the general formula LipNxMyOzFa (where N is at least one element selected from the group consisting of Co, Mn and Ni, M is at least one element selected from the group consisting of Al, Sn, alkaline earth metal elements and transition metal elements other than Co, Mn and Ni, 0.9≦p≦1.2, 0.965≦x<2.00, 0<y≦0.035, 1.9≦z≦4.2, and 0≦a≦0.05), wherein when a powder of the lithium-containing composite oxide is classified into small particles with an average particle size of 2 μm≦Ds50≦8 μm and large particles with an average particle size of 10 μm≦Dl50≦25 μm, a content of the small particles is from 15 to 40% by weight and a content of the large particles is from 60 to 85% by weight, and 0.01≦ys≦0.06, 0≦yl≦0.02 and 0≦yl / ys<1, where (ys) is a ratio of the M element in the above general formula in the small particles and (yl) is a ratio of the M element in the general formula in the Large particles.
Owner:SUMITOMO CHEM CO LTD

Optical semiconductor device and manufacturing method thereof

In a device having an anode electrode, an organic EL layer, and a cathode electrode formed on a substrate in this order from a main surface side of the substrate, and an encapsulating film provided on the substrate so as to cover the emission layer, the encapsulating film includes a laminated film obtained by alternately laminating buffer films serving as flattening films and barrier films having high moisture barrier property, and the flattening film and the barrier film include a silicon oxynitride film. In the manufacturing process of the device, the buffer film including silicon oxynitride is formed by an optical CVD method using vacuum ultraviolet light, and in this process, radical irradiation by remote plasma is performed during the irradiation of the vacuum ultraviolet light.
Owner:HITACHI HIGH-TECH CORP +1

Embossed crepe paper and its manufacturing method

ActiveUS20060278357A1Property is spoiled littleDestruction of hydrogen bondingNon-fibrous pulp additionNatural cellulose pulp/paperCrêpe paperPulp and paper industry
An object of the present invention is to provide an embossed crepe paper which can clearly be formed into fine embossed shapes, and is excellent in the fluffy feel and therefore excellent in such as absorbency for fats. As a means of achieving this object, the method for manufacturing an embossed crepe paper, according to the present invention, is a method for manufacturing an embossed crepe paper comprising a step of embossing a raw crepe paper, wherein: a raw paper having a basis weight of 6 to 28 g / m2 is used as the raw crepe paper; and the embossing step includes the steps of: (a) supplying the raw crepe paper with water in an amount of 0.1 to 100 weight % based on the basis weight to thereby put the raw crepe paper in a wet condition; (b) embossing the wet-conditioned raw crepe paper; and (c) drying the embossed wet-conditioned raw crepe paper.
Owner:KAWANO PAPER

Porous substrate and its manufacturing method, and gan semiconductor multilayer substrate and its manufacturing method

A structure of a substrate used for growing a crystal layer of a semiconductor, particularly a group-III nitride semiconductor and its manufacturing method. The substrate comprises two porous layers on a base. The mean opening diameter of the pores of the first porous laser, the outermost layer, is smaller than the means diameter of the pores in the second porous layer nearer to the base than the first porous layer. The first and second porous layers have volume porosities of 10 to 90%. More then 50% of the pores of the first porous layer extend from the surface of the first porous layer and reach the interface between the first and second porous layers. Even by a conventional crystal growing method, an epitaxial crystal of low defect density can be easily grown on the porous substrate.
Owner:SUMITOMO CHEM CO LTD

Vapor chamber

A vapor chamber includes a plate and a wick structure. The plate is provided therein with a working fluid, and the plate has a heated end and a condensed end. The wick structure comprises a first wick portion adhered to be opposite to the heated end, a second wick portion overlapping on the first wick portion, and a third wick portion adhered on the rest portion of a chamber. The aperture diameter of the first wick portion is larger than that of the second wick portion, or the aperture density of the first wick portion is smaller than that of the second wick portion. Therefore, the amount of working fluid attached to the second wick portion is smaller than of the first wick portion. As a result, after heated, the working fluid attached to the second wick portion will be vaporized more quickly, thereby increasing the efficiency of heat transfer and improving the heat-dissipating effect.
Owner:GOLDEN SUN NEWS TECHN +1

Bulky sheet material having three-dimensional protrusions

A bulky sheet material having three-dimensional protrusions 10 is disclosed. The sheet material comprises a first layer 1 and a second layer 2 adjacent to the first layer 1. The first layer 1 and the second layer 2 is partly joined together at joints 3 in a prescribed pattern. The first layer 1 has a number of raised portions which are located among the joints 3. The second layer 2 comprises a material which exhibits elastomeric behavior. The bulky sheet material 10 exhibits elastomeric behavior as a whole and breathability.
Owner:KAO CORP

Spongelike Structure and Powder, As Well As Process for Producing the Same

An object of the present invention is to provide a spongelike structure or a powder having fibers three-dimensionally arranged therein with high dispersibility, whose apparent density can be designed depending on the purpose or utility, as well as a process producing them. A fiber dispersion in which fibers having a number mean diameter in a predetermined range are dispersed in a dispersion medium, and this fiber dispersion is dried to remove the dispersion medium, thereby, a spongelike structure and a powder are produced.
Owner:TORAY IND INC

Nickel-coated free-standing silicon carbide structure for sensing fluoro or halogen species in semiconductor processing systems, and processes of making and using same

A (MEMS)-based gas sensor assembly for detecting a fluorine-containing species in a gas containing same, e.g., an effluent of a semiconductor processing tool undergoing etch cleaning with HF, NF3, etc. Such gas sensor assembly in a preferred embodiment comprises a free-standing silicon carbide support structure having a layer of a gas sensing material, preferably nickel or nickel alloy, coated thereon. Such gas sensor assembly is preferably fabricated by micro-molding techniques employing sacrificial molds that are subsequently removable for forming structure layers.
Owner:ENTEGRIS INC

Flattened heat pipe and manufacturing method thereof

The invention provides a flattened heat pipe whose vapor flowing passage is not clogged and which has an excellent capillary force. The flattened heat pipe has a closed container formed by flattening a tubular container, a plurality of wick structures arrayed within the container in a longitudinal direction so as to form an acute-angled portion where a capillary force is large at least partially within the container, a hollow portion formed of an outer peripheral surface of the wick structure and an inner wall surface of the container and a working fluid sealed into the container.
Owner:FURUKAWA ELECTRIC CO LTD

Expanding material composition, self-suspension propping agent, method for preparing same and application of self-suspension propping agent

The invention discloses an expanding material composition, a self-suspension propping agent, a method for preparing the same and application of the self-suspension propping agent. The expanding material composition, the self-suspension propping agent, the method and the application have the advantages that the expanding material composition can be coated on a propping agent body and can be quickly swollen in water, stable hydration layers can be formed on the outer surfaces of propping agent granules, the relative density of the propping agent granules can be reduced, a small quantity of organic molecules in the expanding material composition can be expanded in the water, the viscosity of the water can be improved, and accordingly the propping agent granules can be suspended in the water advantageously; the water can be used as fracturing fluid, accordingly, fracturing fluid does not need to be prepared, the expanding material composition and the self-suspension propping agent are convenient to operate, equipment is simple, and organic solvents can be omitted; the viscosity of the fracturing fluid can be lowered, and accordingly the fracturing fluid delivery difficulty can be lowered; additional macromolecular compounds for the fracturing fluid can be omitted, accordingly, the problem of blockage of oil and gas production pores due to macromolecular compounds which flow into underground environments along with existing fracturing fluid can be solved, and stratum environment pollution due to the macromolecular compounds can be reduced.
Owner:BEIJING RECHSAND SCI & TECH GRP

Thermoelectric Materials and Devices Comprising Graphene

Composite materials with thermoelectric properties and devices made from such materials are described. The thermoelectric composite material may comprise a metal oxide material and graphene or modified graphene. It has been found that the addition of graphene or modified graphene to thermoelectric metal oxide materials increases ZT. It has further been found that the ZT of the metal oxide becomes effective over a broader temperature range and at lower temperatures.
Owner:UNIV OF MANCHESTER

Backlighting light pipe for illuminating a flat-panel display

InactiveUS20060187677A1Shortening effect operating timeMore freedom for dispositionMechanical apparatusLight guides for lighting systemsLight pipeDisplay device
A light pipe includes a light input end and a diffractive structure. The diffractive structure includes elongated formations having diffractive properties for coupling light out from the light pipe to provide backlighting of a flat-panel display. The elongated formations are curved, the curvature being dependent on the location of a light source at the light input end.
Owner:VIVO MOBILE COMM CO LTD

Multi-Component Sponge-Forming Liquid Silicone Rubber Composition And Silicone Rubber Sponge Manufacturing Method

ActiveUS20110190410A1Small shrinkage rateAvoid it happening againPolymer scienceHydrogen
A multipackage sponge-forming liquid silicone rubber composition that characteristically comprises at least (A) an alkenyl-containing polydiorganosiloxane comprising (A1) a polydiorganosiloxane that has alkenyl groups on both molecular chain terminals and that does not contain alkenyl groups in the side chains on the molecular chain, and (A2) a polydiorganosiloxane that has at least two alkenyl groups in the side chains on the molecular chain; (B) an organopolysiloxane that has at least two silicon-bonded hydrogen atoms in each molecule; (C) a mixture comprising water and an inorganic thickener; (D) an emulsifying agent; (E) a hydrosilylation reaction catalyst; and (F) a cure retarder; and is stored as a plurality of separate compositions wherein none of this plurality of separately stored compositions contain both component (A) and component (C), none of this plurality of separately stored compositions contain both component (B) and component (C), and none of this plurality of separately stored compositions contain both component (B) and component (E).
Owner:DOW TORAY CO LTD

Rotation angle detecting device

A rotation angle detecting device includes a magnet (4), a magnetic substance unit (5), and a non-contact magnetic detection element (7). The magnet (4) rotates with an object to be measured and includes two ends magnetized so as to have opposite polarities. The magnetic substance unit (5) forms a predetermined air gap with the two ends of the magnet (4) and is divided into magnetic members (6) so as to provide plane symmetry with respect to a vertical plane perpendicularly crossing a rotational center axis of the magnet (4) to form a magnetic detection gap (9) by the division. The non-contact magnetic detection element (7) is provided in the magnetic detection gap (9) between the magnetic members (6) so as to output a signal corresponding to a density of a magnetic flux passing through the magnetic detection gap (9). The rotation angle of the object to be measured is detected based on the output signal from the magnetic detection element (7). The magnetic members (6) include reverse warp parts (34) so that the air gap suddenly increases when the magnet (4) rotates at a predetermined rotation angle from a state where the air gap is minimum in a direction in which the air gap increases.
Owner:DENSO CORP

Method for synthesizing noble metal superfine nanowire water phase and establishing noble metal nanopore membrane by self-precipitation thereof

The invention provides a method for synthesizing a noble metal (gold, palladium, platinum) nanowire and establishing a noble metal nanopore membrane by self-precipitation thereof. The method comprises the following steps of: adding a 0.05 percent (W / V) nonionic surfactant into 1 mmol.L<-1> solution of noble metal precursor (HAuCl4, H2PtCl6, Pd(NO3)2) and mixing the solution and the surfactant by stirring; stirring the mixture in ice bath for 5 to 10 minutes and adding potassium borohydride (or sodium borohydride) in an amount which is 6 times that of the HAuCl4 of the metal precursor, 4 timesthat of the H2PtCl6 and twice that of the Pd(NO3)2; stirring violently to fully reduce the metal precursor in the mixture so as to synthesize the metal superfine (less than or equal to 3 nanometers) netlike nanowire; adding the 0.05 percent (W / V) nonionic surfactant into synthesized nanowire dispersion liquid, mixing uniformly and centrifuging at the temperature of 60 DEG C for 10 minutes so as to separate and purify a nanomaterial; and adding 5mM of NaCl (additional NaCl does not need to be added into an Au nanowire) into the synthesized nanowire dispersion liquid and standing for 12 hours so as to obtain a corresponding noble metal nanopore membrane.
Owner:RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI

Method for making twisted carbon nanotube wire

The present invention relates to a method for making a twisted carbon nanotube wire. Two opposite ends of the at least one carbon nanotube film is clamped by two clamps. The two clamps is pulled along two reversed directions to stretch the at least one carbon nanotube film. The at least one carbon nanotube film is twisted by rotating the two clamps while the at least one carbon nanotube film is in a straightening state.
Owner:TSINGHUA UNIV +1

Transfer device and image forming apparatus

A transfer device and an image forming apparatus capable of forming an image of smooth image quality with little uneven density, are provided. An alternating voltage is applied so that a first period in which a first peak-to-peak voltage Vpp(1) is applied and a second period in which a second peak-to-peak voltage Vpp(2), lower than the first peak-to-peak voltage, is applied are alternately repeated. In the alternating voltage to be applied, a transfer side potential to shift a toner from an intermediate transfer belt to recording paper sheet and an opposite transfer side potential to shift the toner from the recording paper sheet to the intermediate transfer belt are applied so as to alternate with each other. When f1 denotes a frequency of the first period and f2 denotes a frequency of the second period, f1=f2 is satisfied.
Owner:SHARP KK

Preparation method of compact magnesia ceramics by sintering

The invention discloses a preparation method of compact magnesia ceramics by sintering, relating to an electronic material. The method comprises the following steps: A, taking sheet-like nano high-purity basic magnesium carbonate as a raw material, and carrying out high-temperature calcination on the raw material at 700-1000 DEG C to obtain nano magnesium oxide powder; B, carrying out pressure forming on the nano magnesium oxide powder obtained by calcination to obtain a magnesia ceramic blank; and C, heating the magnesia ceramic blank at a rate of 1 DEG C / min-30 DEG C / min to the preset sintering temperature, wherein the sintering temperature is 1300 DEG C, and the heat-preservation sintering time is 180 min. The invention adopts the appropriate forming pressure (800MPa) and the appropriate heating rate (10 DEG C / min) and utilizes a pressureless sintering method to prepare the compact magnesia ceramics the relative density of which is up to 98.2%.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Hollow metal sphere with mesoporous structure and method for manufacturing the same

A method for manufacturing a hollow metal sphere with a mesoporous structure is disclosed, which comprises the following steps: (A) providing a hollow sphere template with a mesoporous structure, wherein the hollow sphere template comprises: a first shell with plural channels penetrating the first shell, the material of the first shell comprises a mesoporous silica material, and the mesoporous silica material has a cubic Ia3d symmetry pore structure; (B) mixing the hollow sphere template with a metal precursor; (C) reducing the metal precursor; and (D) removing the hollow sphere template to obtain a hollow metal sphere with a mesoporous structure. In addition, the present invention also provides a hollow metal sphere with a mesoporous structure prepared by the aforementioned method.
Owner:NATIONAL TSING HUA UNIVERSITY

Glass substrate for information recording medium and magnetic information recording medium to which the glass substrate is applied

Disclosed are a glass substrate for an information recording medium, having excellent scratch resistance and a light weight and having high fracture toughness, the glass substrate having a fragility index value, measured in water, of 12 μm−1 / 2 or less or having a fragility index value, measured in an atmosphere having a dew point of −5° C. or lower, of 7 μm−1 / 2 or less, or the glass substrate comprising, by mol %, 40 to 75% of SiO2, 2 to 45% of B2O3 and / or Al2O3 and 0 to 40% of R′2O in which R′ is at least one member selected from the group consisting of Li, Na and K), wherein the total content of SiO2, B2O3, Al2O3 and R′2O is at least 90 mol %, and a magnetic information recording medium comprising a magnetic recording layer formed on the glass substrate.
Owner:HOYA CORP

Laser annealing apparatus

A laser annealing apparatus for crystallizing a semiconductor film with a linearly radiating laser beam including a laser oscillator and laser optical systems for forming a laser beam radiated from the laser oscillator linearly, for application to a semiconductor film. Each linearly radiating laser beam from each laser optical system radiated onto the semiconductor film is arrayed almost linearly in a length direction, with an interval on the semiconductor film.
Owner:MITSUBISHI ELECTRIC CORP
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