Patents by Inventor Masahiko Iijima
Masahiko Iijima has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11187712Abstract: The present invention makes it possible for an automated analyzer including two or more types of photometers to obtain suitable output of the measurement results of the plurality of photometers and suitable data alarm output even if there is an abnormality, or the like, at the time of measurement. This automated analyzer includes, for example, two types of photometers having different quantitative ranges and an analysis control unit for controlling analysis that includes measurement of a given sample using the two types of photometers. If two types of data alarms corresponding to abnormalities, or the like, during measurement have been added to the two types of measurement results from the two types of photometers, the analysis control unit selects measurement result and data alarm output corresponding to the combination of the two types of data alarms and outputs the same to a user as analysis results.Type: GrantFiled: September 6, 2018Date of Patent: November 30, 2021Assignee: Hitachi High-Technologies CorporationInventors: Yuto Kazama, Masahiko Iijima, Chie Yabutani, Kenji Kogure
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Patent number: 11156625Abstract: An automatic analysis device is provided with: a sample disk for holding a sample container that accommodates a sample; a reagent disk for holding a reagent container that accommodates a reagent; at least two different measuring units that respectively perform different types of analyses; a control part that controls the measuring units; and a display part that displays: a work flow area in which the flow of operation of the two or more measuring units is displayed; and an overview area in which the usable or unusable states of the respective measuring units are displayed, wherein the overview area has a unit necessity-of-use selection part that can select whether using each of the measuring units is necessary, and the control part controls the display part so as to change the display of the work flow area on the basis of the information set in the unit necessity-of-use selection part.Type: GrantFiled: February 15, 2018Date of Patent: October 26, 2021Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Chie Yabutani, Takumi Yamada, Masahiko Iijima
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Publication number: 20210190806Abstract: An automatic analysis device has a plurality of types of photometers having different quantitative ranges, and an analysis control unit for quantifying the desired component in specimens based on measurement values of one or more photometers selected from among the plurality of types of photometers. The analysis control unit: sets a switching region in an overlap region of respective quantitative ranges of the plurality of types of photometers, said switching region having a greater width than does the variation in quantitative values of the desired component based on the measurement values of photometers having the same specimen; compares the quantitative value of a quantitative range portion that corresponds to the switching region and the quantitative values of the desired component based on the measurement values of the photometers; and selects a photometer to be used in quantitative output of the desired component from among the plurality of types of photometers.Type: ApplicationFiled: March 10, 2021Publication date: June 24, 2021Inventors: Yuto KAZAMA, Masahiko IIJIMA, Sakuichiro ADACHI
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Patent number: 10976333Abstract: An automatic analysis device has a plurality of types of photometers having different quantitative ranges, and an analysis control unit for quantifying the desired component in specimens based on measurement values of one or more photometers selected from among the plurality of types of photometers. The analysis control unit: sets a switching region in an overlap region of respective quantitative ranges of the plurality of types of photometers, said switching region having a greater width than does the variation in quantitative values of the desired component based on the measurement values of photometers having the same specimen; compares the quantitative value of a quantitative range portion that corresponds to the switching region and the quantitative values of the desired component based on the measurement values of the photometers; and selects a photometer to be used in quantitative output of the desired component from among the plurality of types of photometers.Type: GrantFiled: June 16, 2017Date of Patent: April 13, 2021Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Yuto Kazama, Masahiko Iijima, Sakuichiro Adachi
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Publication number: 20200278366Abstract: Provided is an automatic analysis device that avoids carryover and prevents deterioration of analysis performance without controlling reaction cell position. This automatic analysis device is provided with: a reaction cell in which a sample and a reagent are mixed and allowed to react; a light source that radiates light onto the mixed liquid of the sample and the reagent, which has been dispensed into the reaction cell; a detector that detects the light radiated from the light source; and a cleaning mechanism that cleans the reaction cell. The cleaning mechanism includes an intake nozzle that draws in liquid from the reaction cell and a discharge nozzle that discharges the liquid into the reaction cell; the intake nozzle and the discharge nozzle can move vertically; and the intake nozzle is cleaned by lowering the intake nozzle into the reaction cell, in which a cleaning liquid or cleaning water have been accumulated, without drawing in the cleaning liquid or the cleaning water.Type: ApplicationFiled: January 23, 2019Publication date: September 3, 2020Inventors: Rei KONISHI, Nobuhiko SASAKI, Masahiko IIJIMA
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Publication number: 20200271677Abstract: The present invention makes it possible for an automated analyzer including two or more types of photometers to obtain suitable output of the measurement results of the plurality of photometers and suitable data alarm output even if there is an abnormality, or the like, at the time of measurement. This automated analyzer includes, for example, two types of photometers having different quantitative ranges and an analysis control unit for controlling analysis that includes measurement of a given sample using the two types of photometers. If two types of data alarms corresponding to abnormalities, or the like, during measurement have been added to the two types of measurement results from the two types of photometers, the analysis control unit selects measurement result and data alarm output corresponding to the combination of the two types of data alarms and outputs the same to a user as analysis results.Type: ApplicationFiled: September 6, 2018Publication date: August 27, 2020Inventors: Yuto KAZAMA, Masahiko IIJIMA, Chie YABUTANI, Kenji KOGURE
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Publication number: 20200241024Abstract: An automatic analysis device is provided with: a sample disk for holding a sample container that accommodates a sample; a reagent disk for holding a reagent container that accommodates a reagent; at least two different measuring units that respectively perform different types of analyses; a control part that controls the measuring units; and a display part that displays: a work flow area in which the flow of operation of the two or more measuring units is displayed; and an overview area in which the usable or unusable states of the respective measuring units are displayed, wherein the overview area has a unit necessity-of-use selection part that can select whether using each of the measuring units is necessary, and the control part controls the display part so as to change the display of the work flow area on the basis of the information set in the unit necessity-of-use selection part.Type: ApplicationFiled: February 15, 2018Publication date: July 30, 2020Inventors: Chie YABUTANI, Takumi YAMADA, Masahiko IIJIMA
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Patent number: 10603667Abstract: Provided are a device and a cleaning mechanism for a reaction container in the device that are characterized by being provided with: a reaction disk for holding a reaction container; a sample dispensing mechanism for dispensing a sample to the reaction container; a reagent dispensing mechanism for dispensing a reagent to the reaction container; an optical system comprising a light source for applying light to a mixture of the sample and the reagent dispensed to the reaction container, and a detector for detecting the light applied from the light source; and a cleaning mechanism for cleaning the reaction container, wherein the cleaning mechanism is provided with a cleaning liquid supply nozzle for supplying a cleaning liquid to the reaction container after an analysis, a cleaning liquid suction nozzle for suctioning the supplied cleaning liquid, and a cleaning tip provided on the lower end of the cleaning liquid suction nozzle, and the side surface of the cleaning tip is formed such that the width of the cleanType: GrantFiled: February 15, 2018Date of Patent: March 31, 2020Assignee: Hitachi High-Technologies CorporationInventors: Kei Shioya, Masahiko Iijima
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Publication number: 20190369131Abstract: Addressing the problem of preventing contamination, the present invention is characterized by being provided with a reagent nozzle (H) for discharging a reagent (M1) at a predetermined discharge pressure to a reaction vessel (V) in which a specimen (M2) is accommodated, a control unit for controlling the horizontal position of the reagent nozzle (H) in accordance with the liquid amount of the reagent (M1) and the viscosity of the reagent (M1), a dispensing unit for dispensing the reagent (M1) into the reaction vessel (V), and a photometer for detecting light radiated to a mixture of the specimen (M2) and the reagent (M1), the control unit setting the horizontal position of the reagent nozzle (H) to the center position of the reaction vessel (V) when the liquid amount of the reagent (M1) is greater than the amount of the specimen (M2) and the viscosity of the reagent (M1) is equal to the viscosity of the specimen (M2) or lower than the viscosity of the specimen (M2).Type: ApplicationFiled: February 27, 2018Publication date: December 5, 2019Inventors: Hiroki AKASE, Masahiko IIJIMA, Chie YABUTANI, Takanori SAWADA, Rei KONISHI
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Publication number: 20190351424Abstract: Provided are a device and a cleaning mechanism for a reaction container in the device that are characterized by being provided with: a reaction disk for holding a reaction container; a sample dispensing mechanism for dispensing a sample to the reaction container; a reagent dispensing mechanism for dispensing a reagent to the reaction container; an optical system comprising a light source for applying light to a mixture of the sample and the reagent dispensed to the reaction container, and a detector for detecting the light applied from the light source; and a cleaning mechanism for cleaning the reaction container, wherein the cleaning mechanism is provided with a cleaning liquid supply nozzle for supplying a cleaning liquid to the reaction container after an analysis, a cleaning liquid suction nozzle for suctioning the supplied cleaning liquid, and a cleaning tip provided on the lower end of the cleaning liquid suction nozzle, and the side surface of the cleaning tip is formed such that the width of the cleanType: ApplicationFiled: February 15, 2018Publication date: November 21, 2019Inventors: Kei SHIOYA, Masahiko IIJIMA
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Publication number: 20190346470Abstract: A high-throughput automatic analyzer integrates a biochemical analysis section and a blood coagulation analysis section. The analyzer is capable of achieving a reduction in size, system cost, and lifecycle cost. The automatic analyzer includes: a reaction disk; a first reagent dispensing mechanism that dispenses a reagent to reaction cells on the reaction disk; a photometer that irradiates a reaction solution in the reaction cell with light; a reaction cell cleaning mechanism; a reaction vessel supply unit that supplies a disposable reaction vessel for mixing and reacting a sample and a reagent with each other; a second reagent dispensing mechanism that dispenses a reagent to the disposable reaction vessel; a blood coagulation time measuring section that irradiates a reaction solution in the disposable reaction vessel with light to detect transmitted or scattered light; and a sample dispensing mechanism that dispenses a sample to the reaction cell and the disposable reaction vessel.Type: ApplicationFiled: July 24, 2019Publication date: November 14, 2019Inventors: Akihisa MAKINO, Hajime YAMAZAKI, Keiko YOSHIKAWA, Manabu ANDO, Masahiko IIJIMA
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Patent number: 10416179Abstract: A high-throughput automatic analyzer integrates a biochemical analysis section and a blood coagulation analysis section. The analyzer is capable of achieving a reduction in size, system cost, and lifecycle cost. The automatic analyzer includes: a reaction disk; a first reagent dispensing mechanism that dispenses a reagent to reaction cells on the reaction disk; a photometer that irradiates a reaction solution in the reaction cell with light; a reaction cell cleaning mechanism; a reaction vessel supply unit that supplies a disposable reaction vessel for mixing and reacting a sample and a reagent with each other; a second reagent dispensing mechanism that dispenses a reagent to the disposable reaction vessel; a blood coagulation time measuring section that irradiates a reaction solution in the disposable reaction vessel with light to detect transmitted or scattered light; and a sample dispensing mechanism that dispenses a sample to the reaction cell and the disposable reaction vessel.Type: GrantFiled: June 7, 2017Date of Patent: September 17, 2019Assignee: Hitachi High-Technologies CorporationInventors: Akihisa Makino, Hajime Yamazaki, Keiko Yoshikawa, Manabu Ando, Masahiko Iijima
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Publication number: 20190162744Abstract: An automatic analysis device has a plurality of types of photometers having different quantitative ranges, and an analysis control unit for quantifying the desired component in specimens based on measurement values of one or more photometers selected from among the plurality of types of photometers. The analysis control unit: sets a switching region in an overlap region of respective quantitative ranges of the plurality of types of photometers, said switching region having a greater width than does the variation in quantitative values of the desired component based on the measurement values of photometers having the same specimen; compares the quantitative value of a quantitative range portion that corresponds to the switching region and the quantitative values of the desired component based on the measurement values of the photometers; and selects a photometer to be used in quantitative output of the desired component from among the plurality of types of photometers.Type: ApplicationFiled: June 16, 2017Publication date: May 30, 2019Inventors: Yuto KAZAMA, Masahiko IIJIMA, Sakuichiro ADACHI
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Publication number: 20190025192Abstract: As a standard solution for evaluating a scattered light measuring optical system mounted on an automated analyzer, a standard solution containing an insoluble carrier at a concentration, at which transmittance is in a range of 10% to 50%, is used, and a light quantity of a light source is adjusted such that a scattered light detector outputs a predetermined value.Type: ApplicationFiled: November 28, 2016Publication date: January 24, 2019Inventors: Sakuichiro ADACHI, Masahiko IIJIMA, Yuto KAZAMA
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Publication number: 20170269113Abstract: A high-throughput automatic analyzer integrates a biochemical analysis section and a blood coagulation analysis section. The analyzer is capable of achieving a reduction in size, system cost, and lifecycle cost. The automatic analyzer includes: a reaction disk; a first reagent dispensing mechanism that dispenses a reagent to reaction cells on the reaction disk; a photometer that irradiates a reaction solution in the reaction cell with light; a reaction cell cleaning mechanism; a reaction vessel supply unit that supplies a disposable reaction vessel for mixing and reacting a sample and a reagent with each other; a second reagent dispensing mechanism that dispenses a reagent to the disposable reaction vessel; a blood coagulation time measuring section that irradiates a reaction solution in the disposable reaction vessel with light to detect transmitted or scattered light; and a sample dispensing mechanism that dispenses a sample to the reaction cell and the disposable reaction vessel.Type: ApplicationFiled: June 7, 2017Publication date: September 21, 2017Inventors: Akihisa MAKINO, Hajime YAMAZAKI, Keiko YOSHIKAWA, Manabu ANDO, Masahiko IIJIMA
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Patent number: 9696329Abstract: A high-throughput automatic analyzer integrates a biochemical analysis section and a blood coagulation analysis section. The analyzer is capable of achieving a reduction in size, system cost, and lifecycle cost. The automatic analyzer includes: a reaction disk; a first reagent dispensing mechanism that dispenses a reagent to reaction cells on the reaction disk; a photometer that irradiates a reaction solution in the reaction cell with light; a reaction cell cleaning mechanism; a reaction vessel supply unit that supplies a disposable reaction vessel for mixing and reacting a sample and a reagent with each other; a second reagent dispensing mechanism that dispenses a reagent to the disposable reaction vessel; a blood coagulation time measuring section that irradiates a reaction solution in the disposable reaction vessel with light to detect transmitted or scattered light; and a sample dispensing mechanism that dispenses a sample to the reaction cell and the disposable reaction vessel.Type: GrantFiled: May 24, 2013Date of Patent: July 4, 2017Assignee: Hitachi High-Technologies CorporationInventors: Akihisa Makino, Hajime Yamazaki, Keiko Yoshikawa, Manabu Ando, Masahiko Iijima
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Patent number: 9638640Abstract: An automatic analyzer which can reduce the effort necessary for conducting a test of limit of detection/limit of quantification properties and managing the test results is provided. Operation condition-setting means for conducting an evaluation test for at least one of a limit of detection and a limit of quantification for each measurement item, determination condition-setting means for setting a determination condition of the evaluation test, and a calculation unit for obtaining a measurement result of a dilution series containing different dilution concentrations by controlling the sample-dispensing mechanism, the reagent-dispensing mechanism and the measurement unit based on the set operation condition, and calculating a test result of the evaluation test from the measurement result of the dilution series based on the set determination condition are disposed.Type: GrantFiled: July 8, 2013Date of Patent: May 2, 2017Assignee: Hitachi High-Technologies CorporationInventors: Masahiko Iijima, Akihisa Makino, Manabu Ando
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Patent number: 9575082Abstract: The automatic analysis device includes an analysis unit that corrects, based on a measured value at the time of a first light amount measurement with water dispensed in the reaction cell before the sample is dispensed therein; a measured value at the time of a second light amount measurement after the sample and a preprocessing reagent are dispensed into the reaction cell; a liquid amount in the reaction cell at the time of the second light amount measurement; and a liquid amount in the reaction cell at the time of a third light amount measurement after the reaction reagent has been dispensed into the reaction cell and before the reaction reagent and the substance to be measured react with each other.Type: GrantFiled: June 5, 2014Date of Patent: February 21, 2017Assignee: Hitachi High-Technologies CorporationInventors: Sakuichiro Adachi, Hajime Yamazaki, Masahiko Iijima, Shigeki Matsubara
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Patent number: D838381Type: GrantFiled: August 30, 2017Date of Patent: January 15, 2019Assignee: Hitachi High-Technologies CorporationInventors: Ai Masuda, Hiroyuki Noda, Akihito Wakui, Masahiko Iijima
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Patent number: D849264Type: GrantFiled: August 30, 2017Date of Patent: May 21, 2019Assignee: Hitachi High-Technologies CorporationInventors: Ai Masuda, Hiroyuki Noda, Mitsuru Oonuma, Keiko Yoshikawa, Masahiko Iijima