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Sakuichiro Adachi

Sakuichiro Adachi, Hachioji JP

Patent application numberDescriptionPublished
20080285025ANALYZING APPARATUS - A light amount is increased and an analyzing accuracy can be kept in accordance with an enlargement of a load angle, however, a scattered light tends to be loaded in an analysis accompanying the scattered light and a dynamic range of a concentration which can be measured becomes narrow. A light is dispersed by a light dispersing portion, a load angle of the received light is changed per wavelength, the load angle is made larger in the light of a wavelength having a small light amount, and the load angle is made smaller in the light a wavelength having a large light amount and used for an analysis accompanying a scattered light. Accordingly, it is possible to gain a dynamic range of a concentration which can be measured in the analysis accompanying the scattered light, while increasing the light amount and maintaining the analyzing accuracy.11-20-2008
20090321262LIQUID TRANSFER DEVICE - Provided is a liquid transfer device which controls electrically liquid position. The surface of the liquid transfer device is provided with unevenness in order to solve a problem of having a large number of electrodes for controlling voltage. The number of electrodes for controlling voltage can be halved by utilization of restoring force of liquid to a spherical shape by surface tension, in addition to electrical force.12-31-2009

Patent applications by Sakuichiro Adachi, Hachioji JP

Sakuichiro Adachi, Kawasaki JP

Patent application numberDescriptionPublished
20110110822SAMPLE ANALYSIS DEVICE - Using an LED element as a light source, a photometric unit including the light source, a light receiving element and other components therebetween is reduced in size. A holder 05-12-2011
20110223066AUTOMATIC ANALYSIS DEVICE - There is provided a high-accuracy automatic analysis device achieving both of measurement in a wide concentration range and high sensitivity at a low concentration. The signals of a plurality of wavelengths λ09-15-2011
20110255090PHOTOMETER AND ANALYZING SYSTEM PROVIDED WITH PHOTOMETER - In an analysis system for detecting amounts of components contained in samples, many samples can be measured simultaneously in the whole of the system by use of compact inexpensive photometers. An LED with low heat generation and a long life span is used as a light source. Compactness is achieved by bended optical axis instead of a straight one. Components for bending an optical axis and components for condensing light to ensure an amount of light are in common use to reduce the number of components. Compactness, reduction of the number of components, and integration achieve easy optical axis alignment and precise measurement.10-20-2011
20110293476SAMPLE ANALYZING DEVICE - To reduce measurement time, it may be considered to quicken reaction or speed up analytic determination. In existing analyzing devices, photometry is performed, typically, about every 15 seconds, so that it has not been possible to secure satisfactory reproducibility. Namely, reducing the measurement time and securing reproducibility have not been compatible. It has therefore been desired to increase the number of times of measurements performed in a short period of time. A cell disk is controlled to stop at a position for photometry during the time after a sample and a reagent are mixed and before measurement is finished and, while the cell disk is stopped, photometry is performed once or plural times thereby increasing the total number of times of measurements.12-01-2011
20120020838AUTOMATIC ANALYSIS DEVICE AND DISPENSING DEVICE - An automatic analysis device 01-26-2012
20120039748AUTOMATIC ANALYSIS APPARATUS - An automatic analysis apparatus capable of testing a plurality of items with high accuracy and at low cost without increasing the size of the apparatus is provided. An automatic analysis apparatus 02-16-2012
20120282139BLOOD COAGULATION ANALYZER - A blood coagulation analyzer that realizes both securement of a wide dynamic range and enhancement of sensitivity in blood coagulation analysis by selecting an appropriate angle of detection depending on the intensity of scattered light from each specimen without causing complexity of the analyzer. The analyzer has a reaction container. A storage unit is provided which takes in and stores multiple pieces of chronological light intensity variation data acquired from detectors arranged around a reaction container. A judgment unit selects light intensity variation data to be used for calculation of a blood coagulation time from the multiple pieces of light intensity variation data stored in the storage unit based on the amount of light intensity variation. A calculation unit calculates the blood coagulation time from the light intensity variation data selected by the judgment unit.11-08-2012
20120288409ANALYSIS DEVICE - An analysis device using scattering light is provided capable of, when a foreign substance such as a bubble is mixed in a measurement target or is attached in a reaction container, reducing the influence by the foreign substance while improving the S/N ratio characteristics. Two or more detectors are disposed on a plane orthogonal to an optical axis of light applied to the measurement target and on a circumference around the optical axis. A change in outputs from the detectors is observed, and a detector influenced by noise due to a foreign substance such as a bubble is specified for rejection, and outputs from the detectors are averaged.11-15-2012
20130108509AUTOMATIC ANALYSIS DEVICE05-02-2013
20130132022AUTOMATIC ANALYZER AND AUTOMATIC ANALYSIS METHOD - An automatic analyzer is capable of reducing the influence of scattered light having noise components to enhance the S/N ratio properties of a light reception signal. Data is obtained at a plurality of angles by a plurality of detectors and a signal obtained by one detector selected from among the detectors is selected as a reference signal. An approximation is applied by an approximation selection unit, and an approximation calculation unit calculates an approximation using the selected approximation. A degree of variability of the reference signal is determined and a data correction unit corrects the signal of the detector by dividing the signal of the detector by the degree of variability of the reference signal. A concentration calculation processing unit performs the concentration calculation by use of the corrected signal data, and a result output unit outputs the results on a display.05-23-2013

Patent applications by Sakuichiro Adachi, Kawasaki JP

Sakuichiro Adachi, Hitachinaka JP

Patent application numberDescriptionPublished
20120141330AUTOMATIC ANALYZER - To be adapted to various types of latex reagents for detecting scattered light and thereby measuring agglutination reactions with high sensitivity while sufficiently ensuring integration time. To be adapted to various types of latex particles of different particle sizes, a plurality of light receivers are arranged in a plane perpendicular to the direction of cell movement by rotation of a cell disk. To ensure sufficient integration time, the angle between the optical axis of the irradiation light and each of a plurality of optical axes of scattered light viewed from above the cell is made equal to or less than 17.7° including a mounting error.06-07-2012
20120315190AUTOMATIC ANALYSIS DEVICE - There is provided a data processing method that reduces influences of air bubbles and dirt while maintaining changes in light amounts. Two scattering light photoreceivers are disposed in the forward direction. A photoreceiver 12-13-2012
20130301048AUTOMATIC ANALYZER - The scattered light from the measurement target substance passes through a light receiving window, and is received by a detector for +θ scattered light and a detector for −θ scattered light which are arranged symmetrically to each other across an optical axis at an equal angle or an equal interval in a vertical direction. A light source is fixed by a light-source holder (that is a base member on which the light source is arranged), and the detectors are arranged on and fixed to a detector holder (that is a base member on which the detectors are arranged). In this manner, drift of the light quantity data caused by the thermal deformation of the optical system can be corrected by comparing values of the light quantity data of the detectors.11-14-2013
20140377853AUTOMATIC ANALYZER - To be adapted to various types of latex reagents for detecting scattered light and thereby measuring agglutination reactions with high sensitivity while sufficiently ensuring integration time. To be adapted to various types of latex particles of different particle sizes, a plurality of light receivers are arranged in a plane perpendicular to the direction of cell movement by rotation of a cell disk. To ensure sufficient integration time, the angle between the optical axis of the irradiation light and each of a plurality of optical axes of scattered light viewed from above the cell is made equal to or less than 17.7° including a mounting error.12-25-2014

Patent applications by Sakuichiro Adachi, Hitachinaka JP

Sakuichiro Adachi, Tokyo JP

Patent application numberDescriptionPublished
20140140890AUTOMATIC ANALYSIS DEVICE - The automatic analysis device measures time sequential data on a scattered light amount as reaction process data, and quantitatively determines the concentration of an analyte from a change in light amount. The automatic analysis device has a function of selecting reaction process data to be used for quantitative determination from the reaction process data obtained by measurement using a plurality of light receivers at different angles. As a result of using this function, data is selected from the reaction process data obtained by measurement using the plurality of light receivers at different angles in accordance with the concentration of the analyte and whether the priority is given to high sensitivity in the case where sensitivity is prioritized or a dynamic range, and the result of the quantitative determination is displayed.05-22-2014
20140220705AUTOMATED ANALYZER AND ANALYZING METHOD - An analyzer provides conditions suitable for a reagent for performing latex immunoassay with a high sensitivity using a method of measuring scattered light. Irradiation light having a wavelength in the range of 0.65 to 0.75 μm is used, and scattered light generated from a reaction solution is received at a light-receiving angle of 15° to 35° with respect to the irradiation direction during the rotational movement of the reaction container. The reagent contains latex particles the average peak particle diameter of which ranges from 0.3 μm to 0.43 μm and to which antibodies are sensitized. The reaction solution contains latex particles at a concentration at which the absorbance to irradiation light having a wavelength of 0.7 μm is 0.25 abs to 1.10 abs, and a change in the amount of scattered light caused by the aggregation of the latex particles through antigens in a sample is measured and quantified.08-07-2014
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