Patent application number | Description | Published |
20100237990 | BIOLOGICAL INFORMATION ACQUIRING APPARATUS, BIOLOGICAL INFORMATION ACQUIRING METHOD AND BIOMETRIC AUTHENTICATION APPARATUS - A biological information acquiring apparatus includes light source units configured to irradiate light onto a living body, a light receiving unit including a light receiving element, the light receiving element including pixels, each of the pixels receiving at least one of a transmission light and a reflection light, and a nonuniform filter disposed on the light receiving unit and on a light path of at least one of the transmission light and the reflection light, the nonuniform filter having a light transmittance that varies with area of the nonuniform filter. The light source units are disposed around the light receiving unit discretely, and the light transmittance of the nonuniform filter is set so that a light intensity of at least one of the transmission light and the reflection light is uniform over an entire surface of the light receiving element. | 09-23-2010 |
20120010477 | CONCENTRATION DETERMINATION APPARATUS, PROBE, CONCENTRATION DETERMINATION METHOD, AND PROGRAM - A concentration determination apparatus may determine a concentration of a target component in an arbitrary layer of an observed object including a plurality of light scattering medium layers. The concentration determination apparatus may include an irradiation unit, light scattering medium layer selection unit, a light receiving unit, a light intensity acquisition unit, an optical absorption coefficient calculation unit, and a concentration calculation unit. | 01-12-2012 |
20120330110 | CONCENTRATION DETERMINATION APPARATUS AND CONCENTRATION DETERMINATION METHOD - A first temperature sensor is formed in a first measurement area so that a measurement surface thereof is exposed to an inner surface of a liquid tank (a storage body). The first temperature sensor can detect a temperature of liquid injected into the liquid tank. Further, a first input part is formed in the first measurement area so that an output surface thereof is exposed to the inner surface of the liquid tank. | 12-27-2012 |
20130073220 | CONCENTRATION MEASUREMENT METHOD AND CONCENTRATION MEASUREMENT APPARATUS - A concentration measurement method of measuring at least including processes of: causing a set of lights having first and second different wavelengths in which change amounts of absorption coefficients of the water due to a change in water temperature are substantially the same to be incident on the solution, and measuring an absorption coefficient in the first wavelength and a absorption coefficient in the second wavelength in the solution; referencing an absorption coefficient of the water in the first wavelength and an absorption coefficient of the water in the second wavelength; referencing an absorption coefficient of the solute in the first wavelength and an absorption coefficient of the solute in the second wavelength; and applying a simultaneous equation to obtain a volume fraction of an unknown solute and a volume fraction of the water based on the above absorption coefficients. | 03-21-2013 |
20150196234 | CONCENTRATION DETERMINATION APPARATUS AND CONCENTRATION DETERMINATION METHOD FOR MEASURING A CONCENTRATION OF A MEASURED COMPONENT CONTAINED IN A LIVING BODY TISSUE - A first temperature sensor is formed in a first measurement area so that a measurement surface thereof is exposed to an inner surface of a liquid tank (a storage body). The first temperature sensor can detect a temperature of liquid injected into the liquid tank. Further, a first input part is formed in the first measurement area so that an output surface thereof is exposed to the inner surface of the liquid tank. | 07-16-2015 |
Patent application number | Description | Published |
20080287809 | Biological information measuring apparatus and biological information measuring method - A biological information measuring apparatus measures information of a living body by irradiating the living body with light. The apparatus includes: a first light source irradiating the living body with light; a second light source irradiating the living body with light; and a light receiving section constituted by a plurality of light receiving elements that receives reflected light reflected by the living body or transmitting light transmitting through the living body, during light irradiation of the living body. In the biological information measuring apparatus, the first light source and the second light source are disposed so that a first distance between the light receiving section and the first light source is different from a second distance between the light receiving section and the second light source. | 11-20-2008 |
20090142781 | Non-Liquid Phase Type Chemiluminescent Enzyme Immunoassay Method and Assay Kit - A chemiluminescent enzyme immunoassay method whereby a target substance such as a protein is assayed. This chemiluminescent enzyme immunoassay method comprises: the step of capturing an immune complex containing an enzyme-labeled antibody, which is labeled with an enzyme acting a chemiluminescent substrate, and the target substance on a support having no solution layer; the step of overlaying a support membrane containing the chemiluminescent substrate on the immune complex having been captured above; and the step of measuring the luminescence dose caused by the reaction between the enzyme-labeled antibody and the chemiluminescent substrate to thereby quantify the target substance. Since a highly sensitive chemiluminescent enzyme immunoassay is conducted by using a non-liquid phase type reaction system in the chemiluminescent enzyme immunoassay method as described above, multiple items can be assayed by using only a small amount of a specimen and, furthermore, the target substance can be assayed at a high sensitivity thereby without resorting to any troublesome procedures such as pipetting a reagent. | 06-04-2009 |
20120101347 | CONCENTRATION DETERMINATION APPARATUS, CONCENTRATION DETERMINATION METHOD, AND PROGRAM - A concentration determination apparatus may include: an irradiation unit that irradiates short-pulsed light to an observed object; a light receiving unit that receives light backscattered from the observed object; a light intensity acquisition unit that acquires an intensity distribution of the light; an optical path length distribution storage unit that stores a model of an optical path length distribution in each layer of the plurality of layers of the short-pulsed light; an optical path length acquisition unit that acquires the optical path length distribution of each layer; a time-resolved waveform storage unit that stores a model of a time-resolved waveform; a light intensity model acquisition unit that acquires a light intensity model; an integral interval calculation unit that calculates a time range of an area; an optical absorption coefficient calculation and acquisition unit that calculates and acquires an optical absorption coefficient; and a concentration calculation unit that calculates the concentration. | 04-26-2012 |
Patent application number | Description | Published |
20120242979 | CONCENTRATION MEASUREMENT METHOD AND CONCENTRATION MEASUREMENT APPARATUS - A concentration measurement method by an absorptiometric method which measures a concentration of a first solute component dissolved in a solution, in which the first solute component interacts with a solvent, includes: referring to an absorption coefficient (μ | 09-27-2012 |
20130094025 | COMPONENT CONCENTRATION MEASUREMENT DEVICE AND COMPONENT CONCENTRATION MEASUREMENT METHOD - Light emitted from a light source section is split into measurement light and gate light by a splitter section. The measurement light is applied to an object by an irradiation section. Emitted light from the object is condensed by a condenser section, and relayed to a light conversion section by a relay section. The gate light obtained by the splitter section is guided to an optical shutter section. In this case, the gate light is changed in optical path length by a gate light guide section, and guided to a Kerr material section. A time-resolved waveform is calculated from a light intensity detection result at the optical path length that has been changed, and the concentration of a component contained in the object is calculated. | 04-18-2013 |
20140012103 | LIGHT ABSORPTION COEFFICIENT DISTRIBUTION ESTIMATION DEVICE, CONCENTRATION MEASUREMENT DEVICE, AND METHOD FOR CONTROLLING LIGHT ABSORPTION COEFFICIENT DISTRIBUTION ESTIMATION DEVICE - A light absorption coefficient distribution estimation device includes a detection section and a light absorption coefficient distribution estimation section. The detection section detects the received light intensity of scattered light from a subject at a plurality of light-receiving positions that differ in distance from an irradiation position at which measurement light is applied to the subject. The light absorption coefficient distribution estimation section estimates the light absorption coefficient distribution of the subject using the received light intensity, a propagation optical path length model that specifies a propagation optical path length on a basis of the distance, and a first model that specifies the received light intensity on a basis of the distance when absorption of light is at a predetermined value. | 01-09-2014 |
Patent application number | Description | Published |
20150149103 | MAGNETIC BODY ANALYZING DEVICE AND MAGNETIC BODY ANALYZING METHOD - A magnetic body analyzing device includes a change amount calculation unit that calculates a change amount by which magnetization vectors arranged on an analysis target change for a predetermined period of time every time the predetermined period of time passes, a change amount cumulating unit that cumulates respective change amounts of the magnetization vectors calculated for each predetermined period of time every time the predetermined period of time passes, a change amount determination unit that determines whether a cumulated value of the cumulated change amounts of the magnetization vectors exceeds a predetermined change width, and a storing unit that records, in a storage unit, the magnetization vectors at a time point at which the cumulated value exceeds the change width when it is determined that the cumulated value exceeds the change width. | 05-28-2015 |
20160048617 | MAGNETIZATION ANALYSIS APPARATUS, MAGNETIZATION ANALYSIS METHOD, AND RECORDING MEDIUM - A magnetization analysis apparatus includes a processor configured to execute a process. The process includes: first calculating, using a magnetization vector of each of elements obtained by mesh division in which a magnetic substance is divided into a plurality of meshes and a magnetization vector of an element adjacent to each element, intermediate magnetization that is a magnetization vector at the halfway point between each element and an element adjacent to each element; second calculating an effective magnetic field using the intermediate magnetization calculated at the first calculating; and third calculating a magnetization vector of each element after a unit time based on the effective magnetic field calculated at the second calculating. | 02-18-2016 |
20160048618 | MAGNETIZATION ANALYZING APPARATUS, MAGNETIZATION ANALYZING METHOD, AND COMPUTER-READABLE RECORDING MEDIUM - A magnetization analyzing apparatus calculates a solution of a system of equations for magnetic field by iterative calculation. The magnetization analyzing apparatus includes a processor configured to execute a process including: acquiring a preconditioner by decomposing a coefficient matrix included in the system of equations; and calculating a value of a parameter for adjusting values of diagonal components of the acquired preconditioner based on binary search so that values of diagonal components of the preconditioner become positive by using the parameter. | 02-18-2016 |