Abstract

A sterilizing device evenly irradiating an entire surface of a food with electron beam to provide a sterilizing effect based on the electron beam to the entire surface is provided. The sterilizing device includes: an electron-beam irradiator unit 10 configured to irradiate a process-target object (such as a raw egg) 40 with electron beam EB; a placement stage 22 for the process-target object 40; and a slit SL arranged between the process-target object 40 and the electron-beam irradiator unit 10, the slit unit SL includes a plurality of openings, and is arranged to be upper than a high portion of the process-target object 40. In this manner, since the process-target object 40 is irradiated with the electron beam EB through the slit SL, its entire surface can be more evenly irradiated with the electron beam, and a sterilizing effect based on the electron beam can be provided to the entire surface. The influence of the bremsstrahlung X ray caused by the irradiation with the electron beam on the inside contents of the process-target object 40 can be made small, and a dose of the X ray with which the inside contents (that is the portion to be the eatable part) of the process-target object 40 is irradiated can be made small so as to meet a criterion value regulated in a law or others.

IPC Classes  ?

• A23L 3/26 - Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating
• A23B 5/015 - Preserving by irradiation or electric treatment without heating effect
• A23L 3/00 - Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs

Abstract

Provided is a sterilization device that irradiates a food with an electron beam more uniformly on the entire surface of the food, and that imparts a sterilizing effect by the electron beam on the entire surface. The present invention includes an electron beam generation unit 10 that irradiates an object to be treated (for example, a raw egg) 40 with an electron beam EB, a mounting stand 22 for the object to be treated 40, and a slit SL disposed between the object to be treated 40 and the electron beam generation unit 10. The slit SL includes a plurality of openings, and is provided above a high portion of the object to be treated 40. Thus, the object to be treated 40 is irradiated with the electron beam EB through the slit SL and, as a result, the entire surface can be irradiated more uniformly with the electron beam, and a sterilizing effect of the electron beam can be imparted on the entire surface. Additionally, the effects of braking X-rays, generated due to the irradiation with the electron beam, on the interior of the object to be treated 40 can be reduced, and the dose of X-rays that the interior (edible portion) of the object to be treated 40 is irradiated with can be kept low so as to satisfy standards stipulated by legal regulations and the like.

IPC Classes  ?

• A23L 3/26 - Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating
• A61L 2/08 - Radiation
• A23L 15/00 - Egg productsPreparation or treatment thereof

Abstract

An additive manufacturing method is provided for building a manufacturing object by building of repeating formation of one of a sintered portion or a fused portion by selectively heating a thinly developed powder material within a working region on the basis of drawing data derived from three-dimensional data of the manufacturing object and further formation of a new thin layer on one of the sintered portion or the fused portion. The additive manufacturing apparatus includes one or more channels connecting the inside and the outside of the region, and introduces a fluid into a crack progressing into the un-fused powder material through the channel after completion of building to forcibly cool one of the sintered portion or the fused portion, and the un-fused powder material.

IPC Classes  ?

• B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• B29C 64/20 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
• B29C 64/255 - Enclosures for the building material, e.g. powder containers
• B29C 64/364 - Conditioning of environment
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing

Abstract

A catalyst for VOC treatment, said catalyst being obtained by having the surface of a carrier, which is mainly composed of silicon carbide (SiC), support a composite oxide of cobalt (Co) and cerium (Ce).

IPC Classes  ?

• B01J 27/224 - Silicon carbide
• B01D 53/86 - Catalytic processes
• C04B 41/85 - Coating or impregnating with inorganic materials

Abstract

Provided is a technical means for causing platinum to be directly supported by a cobalt-cerium composite oxide, and improving catalyst performance when supported on a carrier such as a ball or a honeycomb. [Solution] A method for manufacturing a catalyst for VOC treatment, characterized in including steps (a)-(c): (a) a step for preparing a supporting liquid having platinum as a raw material; (b) a step for immersing, in the supporting liquid, a carrier that is supporting a cobalt-cerium composite oxide; and (c) a step for firing the carrier after the immersion.

IPC Classes  ?

• B01J 23/89 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with noble metals
• B01D 53/86 - Catalytic processes
• B01J 37/02 - Impregnation, coating or precipitation
• B01J 37/08 - Heat treatment

Abstract

The present invention relates to a highly oriented collagen fibril bundle having a length in a major axis direction of 1 m or more.

IPC Classes  ?

• C07K 14/78 - Connective tissue peptides, e.g. collagen, elastin, laminin, fibronectin, vitronectin or cold insoluble globulin [CIG]
• D01F 4/00 - Monocomponent artificial filaments or the like of proteinsManufacture thereof

Abstract

Provided is a sterilization device that irradiates a food having a shell or an outer skin that cover an edible portion with an electron beam more uniformly on the entire surface thereof and imparts a sterilizing effect by the electron beam on the entire surface. A sterilization device for sterilizing a food (target object 40) having an edible portion and a surface portion covering the edible portion by irradiating with an electron beam, the sterilization device comprising an electron beam generating unit 10 for irradiating the food with an electron beam and a conveying unit 21 which conveys the food while rotating so that the food may pass through an irradiation area of the electron beam from an electron beam irradiation unit. The electron beam generating unit has a chamber, a filament, and a window, and electrons emitted as a result of passing an electric current through the filament are accelerated by an accelerating voltage and pass through a foil provided in the window, thereby enabling irradiation with the electron beam. In addition, the conveying unit has a plurality of pivotally supported rollers, and the food is conveyed while rotating in the rotation direction of the rollers.

IPC Classes  ?

• A23L 3/26 - Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating
• A23B 5/015 - Preserving by irradiation or electric treatment without heating effect

Abstract

The purpose of the present invention is to provide an injectable sol into a body, suited for delivery through a catheter, and usable for tissue perforation closure, ulcer protection, or vascular embolization. Provided are a sol for tissue perforation closure, a sol for ulcer protection, and a sol for vascular embolization, each containing from 0.6 mass % to 3 mass % of a collagen, water, from 200 mM to 330 mM sodium chloride, and a buffer and having a pH from 6.0 to 9.0.

IPC Classes  ?

• A61L 24/10 - PolypeptidesProteins
• A61K 9/00 - Medicinal preparations characterised by special physical form
• A61K 47/02 - Inorganic compounds
• A61K 47/22 - Heterocyclic compounds, e.g. ascorbic acid, tocopherol or pyrrolidones
• A61K 47/42 - ProteinsPolypeptidesDegradation products thereofDerivatives thereof, e.g. albumin, gelatin or zein
• A61L 31/14 - Materials characterised by their function or physical properties
• A61K 9/06 - OintmentsBases therefor
• A61L 27/24 - Collagen
• A61L 31/04 - Macromolecular materials

Abstract

Object of the present invention is to provide a safe sol for submucosal local injection which gels and creates a mucosal elevation having a high retention rate of mucosal elevation height when locally injected into a digestive submucosa. Provided is a sol for submucosal local injection containing from 0.2 mass % to 1.2 mass % of a collagen, water, a buffer, and from 200 mM to 420 mM sodium chloride.

IPC Classes  ?

• A61L 31/04 - Macromolecular materials
• A61K 31/352 - Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having six-membered rings with one oxygen as the only ring hetero atom condensed with carbocyclic rings, e.g. cannabinols, methantheline
• A61L 31/16 - Biologically active materials, e.g. therapeutic substances
• A61K 47/22 - Heterocyclic compounds, e.g. ascorbic acid, tocopherol or pyrrolidones
• A61K 9/06 - OintmentsBases therefor
• A61B 17/32 - Surgical cutting instruments
• A61L 31/14 - Materials characterised by their function or physical properties
• A61L 33/12 - Polypeptides, proteins or derivatives thereof
• A61B 17/28 - Surgical forceps
• A61K 47/42 - ProteinsPolypeptidesDegradation products thereofDerivatives thereof, e.g. albumin, gelatin or zein
• A61K 47/02 - Inorganic compounds

Abstract

The present invention provides: a Mg alloy powder which can be produced at low cost and which is capable of bringing about improved sintering properties; and a sintered component using same. This Mg alloy powder is produced by an air atomization method, and contains Mg as a main component and contains 3.5-12 mass% of Al as a first accessory component, with respect to a total mass of the Mg alloy powder.

IPC Classes  ?

• B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
• B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
• C22C 1/02 - Making non-ferrous alloys by melting
• C22C 23/00 - Alloys based on magnesium
• C22C 23/02 - Alloys based on magnesium with aluminium as the next major constituent
• C22C 23/04 - Alloys based on magnesium with zinc or cadmium as the next major constituent

Abstract

The present invention provides: a Mg alloy powder which can be produced at low cost and which is capable of bringing about improved sintering properties; and a sintered component using same. This Mg alloy powder is produced by an air atomization method, and contains Mg as a main component and, as an accessory component, at least one element selected from the group consisting of Y and Ca.

IPC Classes  ?

• B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
• B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
• C22C 1/02 - Making non-ferrous alloys by melting
• C22C 23/00 - Alloys based on magnesium
• C22C 23/02 - Alloys based on magnesium with aluminium as the next major constituent
• C22C 23/04 - Alloys based on magnesium with zinc or cadmium as the next major constituent
• C22C 23/06 - Alloys based on magnesium with a rare earth metal as the next major constituent

Abstract

The present invention provides a method which is for producing a Mg alloy powder, which can be implemented at low cost, and with which it is possible to improve sintering properties. This method for producing a Mg alloy powder comprises: a step for obtaining a molten Mg alloy by melting a Mg-alloy raw material to be melted containing Mg as a main component and, as a first accessory component, at least one selected from the group consisting of Y, Al and Ca; and a step for obtaining a Mg alloy powder by spraying the molten Mg alloy using air.

IPC Classes  ?

• B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
• B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
• C22C 1/02 - Making non-ferrous alloys by melting
• C22C 23/00 - Alloys based on magnesium
• C22C 23/02 - Alloys based on magnesium with aluminium as the next major constituent
• C22C 23/04 - Alloys based on magnesium with zinc or cadmium as the next major constituent
• C22C 23/06 - Alloys based on magnesium with a rare earth metal as the next major constituent

Abstract

The present invention relates to a bundle of highly oriented collagen fibers which has a major-axis-direction length of 1 m or larger.

IPC Classes  ?

• C07K 14/78 - Connective tissue peptides, e.g. collagen, elastin, laminin, fibronectin, vitronectin or cold insoluble globulin [CIG]
• C07K 17/02 - Peptides being immobilised on, or in, an organic carrier

Abstract

The present invention provides a multilayered graphene dispersion capable of instantaneously forming a thin uniform coating film containing multilayered graphene on the surface of a sample, a blackening agent for thermophysical property measurement excellent in a blackening effect, and a mold release agent/lubricant for powder sintering excellent in releasing and lubrication effects. The multilayered graphene dispersion of the present invention is characterized in that multilayered graphene is dispersed in a liquid phase containing an organic solvent and a liquefied gas. The blackening agent for thermophysical property measurement of the present invention is a blackening agent for forming a blackened film on the surface of a sample for thermophysical property measurement, and contains the multilayered graphene dispersion. The mold release agent/lubricant for powder sintering of the present invention is a mold release agent/lubricant for forming a separation layer between a sintering mold and a sintered body in powder sintering, and contains the multilayered graphene dispersion.

IPC Classes  ?

• C01B 32/194 - After-treatment
• G01N 25/18 - Investigating or analysing materials by the use of thermal means by investigating thermal conductivity

Abstract

[Problem] To provide a catalyst which enables a treatment of a VOC containing an aromatic group and a treatment of a VOC containing no aromatic group to be performed at the same time within a temperature range lower than 300°C. [Solution] A catalyst for VOC treatment, which is obtained by having platinum directly supported by a cobalt-cerium composite oxide and is used for a VOC-containing gas combustion treatment, and which is characterized in that: the proportion of the mass of the cobalt-cerium composite oxide in the whole mass of the catalyst is 80% or more; and if a (unit: mass%) is the content of the platinum in the mass of the cobalt-cerium composite oxide, a is within the range of 0 < a ≤ 20. This catalyst may be or may not be supported by an inert carrier.

IPC Classes  ?

• B01J 23/89 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with noble metals
• B01D 53/86 - Catalytic processes
• B01J 37/00 - Processes, in general, for preparing catalystsProcesses, in general, for activation of catalysts
• B01J 37/08 - Heat treatment

Abstract

A gelatin or a chemically modified product thereof contains 10 to 50% by mass of a high-molecular weight component, and a low-molecular weight component in such an amount that a value obtained by subtracting a low-molecular weight component content from a high-molecular weight component content is greater than or equal to 0% by mass.

IPC Classes  ?

• C08H 1/06 - Macromolecular products derived from proteins derived from horn, hoofs, hair, skin, or leather
• C07K 14/78 - Connective tissue peptides, e.g. collagen, elastin, laminin, fibronectin, vitronectin or cold insoluble globulin [CIG]
• A61L 15/32 - Proteins, polypeptidesDegradation products or derivatives thereof, e.g. albumin, collagen, fibrin, gelatin
• C09H 3/00 - Isolation of glue or gelatine from raw materials, e.g. by extracting, by heating
• C12M 3/04 - Tissue, human, animal or plant cell, or virus culture apparatus with means providing thin layers
• A61L 27/34 - Macromolecular materials
• A61L 27/26 - Mixtures of macromolecular materials
• A61L 27/38 - Animal cells
• A61L 15/40 - Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing ingredients of undetermined constitution or reaction products thereof
• A61L 27/52 - Hydrogels or hydrocolloids
• A61L 15/22 - Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
• A61L 27/22 - Polypeptides or derivatives thereof
• A61L 27/54 - Biologically active materials, e.g. therapeutic substances
• A61L 27/60 - Materials for use in artificial skin
• C08L 89/06 - Products derived from waste materials, e.g. horn, hoof or hair derived from leather or skin
• C12M 1/12 - Apparatus for enzymology or microbiology with sterilisation, filtration, or dialysis means

Abstract

A frequency converter receives a predetermined input signal and a predetermined local oscillation signal, and outputs a signal obtained by mixing the input signal with a harmonic signal having a frequency n times the frequency of the local oscillation signal, wherein a circuit that mixes the input signal with the harmonic signal is a harmonic mixer, which mixes the harmonic signal with the input signal using a nonlinear characteristic of a semiconductor element, and wherein the input signal or the output signal is subjected, either before input to the frequency converter or after output from the frequency converter, to correction on the basis of the amplitude and phase frequency characteristics of the frequency converter, which have been determined in advance.

IPC Classes  ?

• G01R 23/14 - Arrangements for measuring frequency, e.g. pulse repetition rateArrangements for measuring period of current or voltage by heterodyningArrangements for measuring frequency, e.g. pulse repetition rateArrangements for measuring period of current or voltage by beat-frequency comparison
• H03D 7/00 - Transference of modulation from one carrier to another, e.g. frequency-changing
• G01R 27/32 - Measuring attenuation, gain, phase shift, or derived characteristics of electric four-pole networks, i.e. two-port networksMeasuring transient response in circuits having distributed constants
• G01R 27/28 - Measuring attenuation, gain, phase shift, or derived characteristics of electric four-pole networks, i.e. two-port networksMeasuring transient response

Abstract

Provided are an image acquisition device and an image acquisition method capable of acquiring the internal and external contours of a measured object with a high degree of accuracy. An image acquisition device 1 includes: a first X-ray source 10 that applies X-rays having a first focal point size; a first detector 20 that detects X-rays applied from the first X-ray source 10 and having passed through a measured object O; a first image generation means 30 that generates a first X-ray CT image on the basis of the X-rays detected by the first detector 20; a second X-ray source 40 that applies X-rays having a second focal point size smaller than the first focal point size; a second detector 50 that detects X-rays applied from the second X-ray source and having passed through the measured object O; a second image generation means 60 that generates a second X-ray CT image on the basis of the X-rays detected by the second detector 50; and an image correction means 70 that corrects the first X-ray CT image generated by the first image generation means 30 on the basis of the second X-ray CT image generated by the second image generation means 60.

IPC Classes  ?

• A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
• G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
• A61B 6/03 - Computed tomography [CT]

Abstract

The purpose of the present invention is to provide a sol for being injected into a living organism which can be used to occlude holes in living tissue, protect ulcers, and treat vascular embolization, and which is suitable for delivery by a catheter. Provided are a sol for occluding holes in living tissue, a sol for protecting ulcers, and a sol for treating vascular embolization which include 0.6-3 mass% of collagen, water, 200-330 mM of sodium chloride, and a buffer, and which have a pH of 6.0-9.0.

IPC Classes  ?

• A61L 31/04 - Macromolecular materials
• A61K 9/06 - OintmentsBases therefor
• A61K 47/02 - Inorganic compounds
• A61K 47/22 - Heterocyclic compounds, e.g. ascorbic acid, tocopherol or pyrrolidones
• A61K 47/42 - ProteinsPolypeptidesDegradation products thereofDerivatives thereof, e.g. albumin, gelatin or zein
• A61L 24/00 - Surgical adhesives or cementsAdhesives for colostomy devices
• A61L 24/10 - PolypeptidesProteins
• A61L 31/14 - Materials characterised by their function or physical properties

Abstract

The purpose of the present invention is to provide a sol for submucosal local injection which is gelatinized if locally injected below the alimentary canal mucosa, forms a bulge exhibiting a high bulge height retention rate, and is safe. Provided is a sol for submucosal local injection which includes 0.2-1.2 mass% of collagen, water, a buffer, and 200-420 mM of sodium chloride.

IPC Classes  ?

• A61K 9/06 - OintmentsBases therefor
• A61K 47/02 - Inorganic compounds
• A61K 47/22 - Heterocyclic compounds, e.g. ascorbic acid, tocopherol or pyrrolidones
• A61K 47/42 - ProteinsPolypeptidesDegradation products thereofDerivatives thereof, e.g. albumin, gelatin or zein
• A61L 31/04 - Macromolecular materials
• A61L 31/14 - Materials characterised by their function or physical properties

Abstract

A rocker bogie includes a first base which including a first wheel, a second wheel, and a third wheel each of which is configured to be in contact with a first flat surface, a second base including a fourth wheel which is configured to be in contact with the first flat surface, and a rotary shaft connecting the first base and the second base to each other such that the second base is rotatable with respect to the first base. The rotary shaft is parallel to a first straight line which connects a rotation center of the first wheel and a rotation center of the second wheel to each other and is disposed between a rotation center of the third wheel and the first straight line, and the fourth wheel is disposed at an opposite position to the third wheel across the first straight line.

IPC Classes  ?

• B62D 37/00 - Stabilising vehicle bodies without controlling suspension arrangements
• B62D 11/04 - Steering non-deflectable wheelsSteering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of separate power sources
• B62D 61/00 - Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern
• B62D 21/18 - Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups
• B62D 61/04 - Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with two road wheels in tandem on the longitudinal centre line of the vehicle with two other wheels which are coaxial
• B62D 61/12 - Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with variable number of ground-engaging wheels, e.g. with some wheels arranged higher than others, or with retractable wheels
• B62D 63/02 - Motor vehicles

Abstract

The present invention provides a device and a method for image reconstruction at different X-ray energies that make it possible to achieve image reconstruction with higher accuracy. A device for image reconstruction at different X-ray energies includes: an X-ray source 1 that irradiates a specimen to be imaged 2 with X-rays; an energy-dispersive detector 4 that detects a characteristic X-ray emitted from the specimen to be imaged 2; a signal processing means that quantifies the peak of the characteristic X-ray detected by the detector 4; and an image reconstruction means that reconstructs an image on the basis of a signal from the signal processing means.

IPC Classes  ?

• G06T 11/00 - 2D [Two Dimensional] image generation
• H04N 13/156 - Mixing image signals
• H04N 13/204 - Image signal generators using stereoscopic image cameras
• G01B 15/04 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring contours or curvatures
• G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
• G06K 9/52 - Extraction of features or characteristics of the image by deriving mathematical or geometrical properties from the whole image
• G06T 7/00 - Image analysis
• H04N 5/232 - Devices for controlling television cameras, e.g. remote control

Abstract

The invention provides a multilayered graphene dispersion capable of instantaneously producing a thin, uniform coating film including multilayered graphene on a sample surface, a blackening agent for thermophysical properties measurement having an excellent blackening effect, and a release agent/lubricant for powder sintering having an excellent release/lubricating effect. This multilayered graphene dispersion is characterized in that multilayered graphene is dispersed in a liquid phase containing an organic solvent and a liquefied gas. This blackening agent for thermophysical properties measurement is for forming a blackened film on the surface of a sample for thermophysical properties measurement, said blackening agent comprising the above multilayered graphene dispersion. This release agent/lubricant for powder sintering is for forming a separation layer between a sintering mold and a sintered body in powder sintering, said release agent/lubricant comprising the above multilayered graphene dispersion.

IPC Classes  ?

• C01B 32/194 - After-treatment
• G01N 25/18 - Investigating or analysing materials by the use of thermal means by investigating thermal conductivity

Abstract

A gelatin or chemically modified product thereof having a high-molecular weight component content of 10%-50% by mass and having a value, being the low-molecular weight component content deducted from the high-molecular weight component content, of at least 0% by mass.

IPC Classes  ?

• C07K 14/78 - Connective tissue peptides, e.g. collagen, elastin, laminin, fibronectin, vitronectin or cold insoluble globulin [CIG]
• A61L 15/32 - Proteins, polypeptidesDegradation products or derivatives thereof, e.g. albumin, collagen, fibrin, gelatin
• A61L 27/00 - Materials for prostheses or for coating prostheses
• C08H 1/06 - Macromolecular products derived from proteins derived from horn, hoofs, hair, skin, or leather
• C09H 3/00 - Isolation of glue or gelatine from raw materials, e.g. by extracting, by heating
• C12M 3/04 - Tissue, human, animal or plant cell, or virus culture apparatus with means providing thin layers
• C12N 5/071 - Vertebrate cells or tissues, e.g. human cells or tissues

Abstract

Provided are image acquisition devices and methods for acquiring internal and external contours of a measured object with a high degree of accuracy. An image acquisition device includes: a first X-ray source that applies X-rays having a first focal point size; a first detector that detects the applied X-rays that have passed through a measured object; a first image generation means that generates a first X-ray CT image based on the detected X-rays; a second X-ray source that applies X-rays having a second focal point size smaller than the first; a second detector that detects X-rays applied from the second X-ray source and having passed through the measured object; a second image generation means that generates a second X-ray CT image based on the X-rays detected by the second detector; and an image correction means that corrects the first X-ray CT image based on the second X-ray CT image .

IPC Classes  ?

• G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]

Abstract

Provided are an image acquisition device and an image acquisition method that allow the internal and external contours of a measured object to be acquired with a high level of precision. An image acquisition device 1 is provided with: a first X-ray source 10, which radiates X-rays having a first focal point size; a first detector 20, which detects X-rays radiating from the first X-ray source 10 that have passed through a measured object O; a first image generation means 30, which generates a first X-ray CT image on the basis of the X-rays detected by the first detector 20; a second X-ray source 40, which radiates X-rays having a second focal point size, which is smaller than the first focal point size; a second detector 50, which detects X-rays radiating from the second X-ray source that have passed through the measured object O; a second image generation means 60, which generates a second X-ray CT image on the basis of the X-rays detected by the second detector 50; and an image correction means 70, which corrects the first X-ray CT image generated by the first image generation means 30 on the basis of the second X-ray CT image generated by the second image generation means 60.

IPC Classes  ?

• G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material

Abstract

This rocker bogie is equipped with: a first base which is equipped with a first wheel, a second wheel, and a third wheel, each capable of coming into contact with a first plane; a second base which is equipped with a fourth wheel capable of coming into contact with the first plane; and a rotary axis which connects the first base and the second base so that the second base is rotatable with respect to the first base. The rotary axis is parallel to a first line which connects the rotational axis of the first wheel and the rotational axis of the second wheel, and is disposed between the rotational axis of the third wheel and the first line. The fourth wheel is disposed on the opposite side of the first line from the third wheel.

IPC Classes  ?

• B62D 61/10 - Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with more than four wheels

Abstract

A frequency converter which accepts as inputs a prescribed input signal and a prescribed local oscillation signal, and outputs as an output signal a signal in which the input signal is mixed with a harmonic signal having a frequency n times the frequency of the local oscillation signal, wherein a circuit which mixes the input signal and the harmonic signal is a harmonic mixer (11) which uses a nonlinear characteristic of a semiconductor element to mix the harmonic signal and the input signal, and wherein the input signal or the output signal is subjected, either before input into the frequency converter or after output from the frequency converter, to correction on the basis of the amplitude and phase frequency characteristics of the frequency converter, which have been measured in advance.

IPC Classes  ?

• H03D 7/00 - Transference of modulation from one carrier to another, e.g. frequency-changing
• G01R 23/14 - Arrangements for measuring frequency, e.g. pulse repetition rateArrangements for measuring period of current or voltage by heterodyningArrangements for measuring frequency, e.g. pulse repetition rateArrangements for measuring period of current or voltage by beat-frequency comparison

Abstract

A device and a method for image reconstruction at different X-ray energies that make it possible to achieve image reconstruction with higher accuracy. A device for image reconstruction at different X-ray energies includes: an X-ray source 1 that irradiates a specimen to be imaged 2 with X-rays; an energy-dispersive detector 4 that detects a characteristic X-ray emitted from the specimen to be imaged 2; a signal processor that quantifies the peak of the characteristic X-ray detected by the detector 4; and an image reconstruction device that reconstructs an image on the basis of a signal from the signal processor.

IPC Classes  ?

• G06T 11/00 - 2D [Two Dimensional] image generation
• G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
• G06K 9/52 - Extraction of features or characteristics of the image by deriving mathematical or geometrical properties from the whole image
• G06T 7/00 - Image analysis
• H04N 5/232 - Devices for controlling television cameras, e.g. remote control
• H04N 13/00 - Stereoscopic video systemsMulti-view video systemsDetails thereof
• H04N 13/02 - Picture signal generators
• G01B 15/04 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring contours or curvatures

Abstract

Provided are a device and method for image reconstruction at different X-ray energies, whereby image reconstruction can be accomplished with higher accuracy. This device for image reconstruction at different X-ray energies includes: an X-ray source (1) for irradiating an imaging specimen (2) with X-rays; an energy dispersive detector (4) for detecting characteristic X-rays produced from the imaging specimen (2); a signal processing means for quantifying of characteristic X-ray peaks detected by the detector (4); and an image reconstruction means for reconstructing images on the basis of signals from the signal processing means.

IPC Classes  ?

• G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
• G01N 23/223 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence
• G01T 1/167 - Measuring radioactive content of objects, e.g. contamination
• G01T 1/36 - Measuring spectral distribution of X-rays or of nuclear radiation
• G01T 7/00 - Details of radiation-measuring instruments

Abstract

A control system includes a load including an operative part, and a control device for supplying AC power to the load through a power line and operating the operative part. The control device includes an interruption mechanism and a transmission mechanism. The load includes a controller. The transmission mechanism transmits a predetermined control signal to the load through the power line by blocking the power supply to the load by the interruption mechanism for a time duration shorter than a half cycle of AC output. The controller controls the operative part based on the control signal received from the control device.

IPC Classes  ?

• H05B 33/08 - Circuit arrangements for operating electroluminescent light sources
• H04B 3/54 - Systems for transmission via power distribution lines
• H05B 37/02 - Controlling
• G05F 3/04 - Regulating voltage or current wherein the variable is AC

Abstract

Provided is a process for producing satisfactory particles held in porous silica. The process comprises (a) the step of preparing porous silica, (b) the step of bringing the porous silica into contact with a liquid which contains either a metal or a compound that has the metal as a component element and infiltrating the liquid into the pores of the porous silica, and (c) the step of subjecting, after the step (b), the impregnated porous silica to a heat treatment to thereby form fine particles comprising the metal or the metal compound in the pores of the porous silica. When porous silica is synthesized by hydrolyzing an alkoxysilane in a solvent-free system, it is possible to synthesize porous silica having a fine pore diameter. Use of this porous silica as a template facilitates formation of particles (e.g., W, Cu, Cr, Mn, Fe, Co, or Ni or an oxide of any of these metals) that show peculiar properties not observed in the bulk material.

IPC Classes  ?

• B01J 8/00 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes
• B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
• C09C 1/30 - Silicic acid
• B01J 21/08 - Silica
• B01J 21/18 - Carbon
• B01J 23/22 - Vanadium
• B01J 23/26 - Chromium
• B01J 23/30 - Tungsten
• B01J 23/34 - Manganese
• B01J 23/50 - Silver
• B01J 23/52 - Gold
• B01J 23/72 - Copper
• B01J 23/74 - Iron group metals
• B01J 23/75 - Cobalt
• B01J 35/10 - Solids characterised by their surface properties or porosity
• B01J 37/00 - Processes, in general, for preparing catalystsProcesses, in general, for activation of catalysts
• B01J 37/02 - Impregnation, coating or precipitation
• B01J 37/03 - PrecipitationCo-precipitation
• B01J 37/08 - Heat treatment
• C01B 33/18 - Preparation of finely divided silica neither in sol nor in gel formAfter-treatment thereof
• C01B 33/12 - SilicaHydrates thereof, e.g. lepidoic silicic acid
• B01J 23/745 - Iron
• B01J 23/755 - Nickel
• B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
• C01B 32/05 - Preparation or purification of carbon not covered by groups , , ,
• B01J 37/12 - Oxidising
• B01J 37/34 - Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves
• B82Y 40/00 - Manufacture or treatment of nanostructures

Abstract

Provided is a loaded catalyst for bad odor treatment, which is capable of maintaining the activity effective for a long time, while enhancing the performance and stability of a Co, Ce oxide loaded catalyst for bad odor treatment. This loaded catalyst is obtained by loading a carrier with catalyst particles. The catalyst particles are obtained by coating the outer surfaces of cobalt oxide particles, which have an average particle diameter of 0.8-2.0 μm, with cobalt oxide that uses cobalt ions as the precursor and cerium oxide that uses cerium ions as the precursor.

IPC Classes  ?

• B01J 23/76 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups
• A61L 9/00 - Disinfection, sterilisation or deodorisation of air
• A61L 9/01 - Deodorant compositions
• B01D 53/86 - Catalytic processes
• B01J 37/02 - Impregnation, coating or precipitation
• B01J 37/04 - Mixing
• B01J 37/08 - Heat treatment

Abstract

An ionized gas detector includes at least a pair of ion detecting electrodes that detect ions of the ionized measuring-subject gas, an electrode-voltage applying unit that applies a given voltage to the ion detecting electrodes, the electrode-voltage applying unit being configured to be capable of reversing its voltage polarity, a charge amplifier circuit having a charge capacitor that accumulates electric charges generated by voltage application by the electrode-voltage applying unit, an ion current calculating unit that calculates the value of an ion current of ions of the measuring-subject gas, based on a time-dependent change of the volume of electric charges accumulated in the charge capacitor of the charge amplifier circuit, and a concentration determining unit that determines the concentration of the measuring-subject gas, based on an ion current value calculated by the ion current calculating unit.

IPC Classes  ?

• G01N 27/64 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosolsInvestigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
• G01N 27/62 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosolsInvestigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electric discharges, e.g. emission of cathode
• G01L 21/30 - Vacuum gauges by making use of ionisation effects
• G01N 27/70 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosolsInvestigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electric discharges, e.g. emission of cathode using electric discharge to ionise a gas and measuring current or voltage
• G08B 17/11 - Actuation by presence of smoke or gases using an ionisation chamber for detecting smoke or gas

Abstract

The purpose of the present invention is to provide a mechanical seal which, while satisfying the leak prevention performance required in mechanical seals, has a diamond film surface with excellent durability, and a manufacturing method of said mechanical seal. This mechanical seal has first and second annular sliding surfaces which rotate relative to one another, and is characterized in that the first and second annular sliding surfaces are configured from a polycrystalline diamond, have a degree of flatness of 3μm or less and have a surface roughness of 0.01-1μm.

IPC Classes  ?

• F16J 15/34 - Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
• C09K 3/10 - Materials not provided for elsewhere for sealing or packing joints or covers

Abstract

A control system comprises a load (3) having an operative unit (5), and a control device (2) for supplying AC power to the load (3) via a power line (4) and operating the operative unit (5). The control device (2) has interruption means (6) and transmission means (7). The load (3) has control means (10). The transmission means (7) transmits a predetermined control signal to the load (3) via the power line (4) by using the interruption means (6) to block the power supply to the load (3) for a time duration shorter than a half cycle of AC output. The control means (10) controls the operative unit (5) on the basis of a control signal received from the control device (2).

IPC Classes  ?

• H05B 37/02 - Controlling
• H04B 3/54 - Systems for transmission via power distribution lines

Abstract

Provided is an ionized gas detector that detects ion current with a simple structure and thereby measures the ion current on a per-ion-polarity basis to detect the concentration of a gas to be measured, is not affected by the effect of DC drift associated with a DC application method, and does not impair detection sensitivity even when an electrode is contaminated (an insulated electrode is used), and also provided is an ionized gas detection method. The ionized gas detector (10) is configured so as to have: at least a pair of ion detection electrodes (12) for detecting ions of a gas to be measured; an electrode application means (14) applying a predetermined voltage to the ion detection electrodes (12) and configured so that the polarity of the voltage can be inverted; a charge amplifier circuit (16) equipped with a charging capacitor (18) for storing the charge produced by the application of the voltage by the electrode application means (14); an ion current calculation means (22) for calculating the ion current value of the ions of the gas to be measured on the basis of the temporal change in the amount of the charge stored on the charging capacitor (18) of the charge amplifier circuit (16); a concentration determination means (24) for determining, from the ion current value calculated by the ion current calculation means (22), the concentration of the gas to be measured; and a voltage polarity control means (26) for inverting the polarity of the electrode application means (14) according to the amount of the charge stored on the charging capacitor (18) of the charge amplifier circuit (16).

IPC Classes  ?

• H01J 47/02 - Ionisation chambers
• G01N 27/64 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosolsInvestigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
• G01N 27/66 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosolsInvestigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber and measuring current or voltage

Abstract

　This material to be molded is a powder obtained by the three-dimensional kneading of a lacquer and plant fibers while heating the same. This compression-molded article is obtained by compression-molding the material to be molded.

IPC Classes  ?

• C08L 93/00 - Compositions of natural resinsCompositions of derivatives thereof
• C08F 2/44 - Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
• C08F 251/02 - Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof on to cellulose or derivatives thereof
• C08K 7/02 - Fibres or whiskers
• C08L 1/00 - Compositions of cellulose, modified cellulose, or cellulose derivatives

Abstract

　This manufacturing method for molded articles comprises a step in which a molded article is obtained by using a mold to compression-mold a material to be molded. The mold is provided with at least two parts, namely, an upper mold and a lower mold disposed opposing the upper mold. The upper mold and lower mold have gas venting structures, and during compression-molding, a pressurizing process and a gas venting process are carried out.

IPC Classes  ?

• B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
• B29C 33/10 - Moulds or coresDetails thereof or accessories therefor with incorporated venting means
• B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
• B29C 43/32 - Component parts, details or accessoriesAuxiliary operations

Abstract

This molding material is obtained by three-dimensionally kneading while also heating a raw material comprising 10 to 85 mass% lacquer, 10 to 85 mass% plant fiber, and 5 to 50 mass% of a molding auxiliary material, to thereby partially heat-polymerize the main component of the lacquer.

IPC Classes  ?

• C08L 93/00 - Compositions of natural resinsCompositions of derivatives thereof
• C08F 2/44 - Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
• C08F 251/02 - Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof on to cellulose or derivatives thereof
• C08K 7/02 - Fibres or whiskers

Abstract

Provided is a process for producing satisfactory particles held in porous silica. The process comprises (a) the step of preparing porous silica, (b) the step of bringing the porous silica into contact with a liquid which contains either a metal or a compound that has the metal as a component element and infiltrating the liquid into the pores of the porous silica, and (c) the step of subjecting, after the step (b), the impregnated porous silica to a heat treatment to thereby form fine particles comprising the metal or the metal compound in the pores of the porous silica. When porous silica is synthesized by hydrolyzing an alkoxysilane in a solvent-free system, it is possible to synthesize porous silica having a fine pore diameter. Use of this porous silica as a template facilitates formation of particles (e.g., W, Cu, Cr, Mn, Fe, Co, or Ni or an oxide of any of these metals) that show peculiar properties not observed in the bulk material.

IPC Classes  ?

• C01B 33/18 - Preparation of finely divided silica neither in sol nor in gel formAfter-treatment thereof
• B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
• B01J 23/22 - Vanadium
• B01J 23/30 - Tungsten
• B01J 35/02 - Solids
• B01J 37/02 - Impregnation, coating or precipitation

Abstract

Provided is a current collecting material for fuel cells that improves the electrical contact between an MEA cell and a separator and improves fuel cell power generating efficiency and cycle characteristics. In the collecting material for a flat plate type fuel cell, a metal fiber knit formed by interleaving metal fiber is disposed as current collecting material (8, 9) on surfaces where the air electrode (cathode) (4) and fuel electrode (anode) (5) of a flat plate type fuel cell (10a) face the cathode side separator (6) and anode side separator (7) respectively. The metal fiber knit is sandwiched and pressed between the electrodes (4, 5) and the separators (6, 7).

IPC Classes  ?

• H01M 8/02 - Fuel cellsManufacture thereof Details
• H01M 8/12 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte

Abstract

Provided is porous silica which can be easily obtained so as to have various shapes, has excellent transparency, is capable of being obtained as nanoparticles, and can be obtained at a high efficiency even when a cationic surfactant having 7 or less carbon atoms is used. A cationic surfactant having a C2-7 hydrophobic moiety is dispersed in an alkoxysilane, and water having a pH regulated to 0-2 is added thereto in an amount of 2-4 equivalents to the alkoxysilane. The alkoxysilane is mildly hydrolyzed to obtain monolithic mesoporous silica having a pore diameter of 0.5-2 nm, excluding 2 nm. Addition of an organic silane to the system renders delicate control of pore diameter possible. By adding polyethylene glycol to the synthesis system, monolithic mesoporous silica nanoparticles are obtained. A precursor solution which has not gelled is: (1) dropped into a basic aqueous solution to obtain mesoporous silica beads or the like; (2) applied to a substrate by spin coating to obtain a thin film; or (3) ejected by means of a spinner to obtain a fiber.

IPC Classes  ?

• C01B 37/00 - Compounds having molecular sieve properties but not having base-exchange properties

Abstract

The present invention provides a stringed instrument capable of corresponding to a preference of a player of the stringed instrument, a purpose of performance, and so on as much as possible. A resonance box portion fabricated by an additive fabrication method and a neck portion protruding from the resonance box portion are included, and material constants at a desired area of the resonance box portion is made different from material constants at an adjacent area adjacent to the desired area step by step or continuously. Vibrational characteristics of the instrument are changed by the partial difference of the material constants, and thereby, the stringed instrument capable of corresponding to the preference of the player, the purpose of the performance, and so on is provided.

IPC Classes  ?

• G10D 1/00 - General design of stringed musical instruments

Abstract

Provided is a stringed instrument which can satisfy the preference of a player of a stringed instrument or the purpose of performance as much as possible. A stringed instrument includes a resonance chamber section manufactured by layered manufacturing method, and a neck section projecting from the resonance chamber section wherein the material constant in a desired region of the resonance chamber section is differentiated stepwise or continuously from the material constant in a region adjacent to the desired region.  A stringed instrument where the vibration characteristics of the instrument are changed by the partial difference in material constant so that the preference of a player or the purpose of performance can be satisfied is thereby provided.

IPC Classes  ?

• G10D 3/02 - Resonating means, horns or diaphragms
• G10D 1/02 - Bowed or rubbed string instruments, e.g. violins or hurdy-gurdies

Abstract

The concentration of tritium in sample water is efficiently increased to a desired concentration rate by a simple structure. A multistage tritium concentration device (1) for electrolytically increasing the concentration of tritium in sample water is configured to include electrolysis cells (3a-3d) each comprising an anode chamber (14), a cathode chamber (15), an ion-exchange membrane (7) provided near the anode chamber (14) and the cathode chamber (15), and an anode (8) and a cathode (9) which are provided in the anode chamber (14) and the cathode chamber (15), respectively. The multiple electrolysis cells (3a-3d) are coupled in series, and the cathode chamber (15) of a preceding-stage electrolysis cell and the anode chamber (14) of a subsequent-stage electrolysis cell are connected by a tube (5b, 5c, 5d).

IPC Classes  ?

• C01B 5/02 - Heavy waterPreparation by chemical reaction of hydrogen isotopes or their compounds, e.g. 4ND3+7O2→ 4NO2+6D2O, 2D2+O2→ 2D2O
• B01D 59/40 - Separation by electrochemical methods by electrolysis
• G01N 1/10 - Devices for withdrawing samples in the liquid or fluent state

Abstract

Disclosed are a toluene measurement system and a toluene detection method which can detect the presence of toluene in air conveniently with high sensitivity. Specifically discloses is a toluene detection sensor system characterized by comprising a means for achieving an enzymatic reaction in a reaction vessel containing a given concentration of a substrate for an enzyme whose activity is inhibited by toluene  by using a sensitive membrane having the enzyme immobilized thereon, thereby detecting the inhibitory activity on the enzymatic reaction.

IPC Classes  ?

• C12Q 1/46 - Measuring or testing processes involving enzymes, nucleic acids or microorganismsCompositions thereforProcesses of preparing such compositions involving hydrolase involving esterase involving cholinesterase

Abstract

A surgical knife blade which is made of single crystal silicon as the material and formed by crystal anisotropic etching of a single crystal silicone wafer having a plane orientation of or in the polished face. This blade has an edge as the higher order face of the crystal anisotropic etching and the edge inclines at a sharp angle to the polished face as described above. Owing to this constitution, this surgical knife blade has a high cut sharpness with regulated scattering in cutting qualities.

IPC Classes  ?

• A61B 17/3211 - Surgical scalpels or knivesAccessories therefor

Abstract

A production method of diamond particles having colored cut faces, and a production method of diamond particles having pattern-drawn cut faces. The first invention is characterized by irradiating the cut face to be colored of a diamond particle with high energy ions by an ion accelerator within a temperature range of room temperature to 200°C, under a vacuum atmosphere of 10-3 to 10-4 Pa, at an acceleration energy of 1 to 5 MeV, and with an ion irradiation amount of 1x1012 to 1x1015 ions/cm2. The second invention is characterized by covering a cut face with a mask drilled with a hole worked into a character or mark shape or a mask by photoresist, and then irradiating with high energy ions similarly in the first invention.

IPC Classes  ?

• C30B 29/04 - Diamond
• C30B 31/22 - Doping by irradiation with electromagnetic waves or by particle radiation by ion-implantation

Abstract

This invention provides a solid polymer electrolyte fuel battery that can improve battery power output through an improvement in catalyst particles in a catalyst layer in a membrane/electrode assembly. In a membrane/electrode assembly for a solid polymer electrolyte fuel battery, comprising a solid polymer electrolyte membrane and a catalyst layer and a gas diffusion layer each provided on both sides of the solid polymer electrolyte membrane, the cathode-side catalyst layer is formed of catalyst particle lumps formed by disposing Pt catalyst particles on the surface of a forming assistant of acid-resistant particles of micron order to cover the surface. A gap large enough to allow a reaction gas to smoothly flow into between catalyst particle lumps of micron order can be ensured to improve the battery power output.

IPC Classes  ?

• H01M 8/02 - Fuel cellsManufacture thereof Details
• H01M 4/86 - Inert electrodes with catalytic activity, e.g. for fuel cells
• H01M 4/88 - Processes of manufacture
• H01M 4/92 - Metals of platinum group
• H01M 8/10 - Fuel cells with solid electrolytes