Patents by Inventor Eiichiro TAKADA
Eiichiro TAKADA 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: 11965820Abstract: A reaction vessel capable of measuring a light amount from a reaction liquid without degrading a function of maintaining the reaction vessel at a predetermined temperature is provided. A reaction vessel including a cylindrical shape centered on a first axis, in which an overall length in a first axis direction is longer than an overall length in a second axis direction and an overall length in a third axis direction, the second axis being perpendicular to the first axis and the third axis being perpendicular to the first axis and the second axis. The reaction vessel includes: an opening part which dispenses a liquid at a portion on one end side in the first axis direction; a first flat surface and a second flat surface which is substantially parallel to the first flat surface.Type: GrantFiled: June 20, 2019Date of Patent: April 23, 2024Assignee: Hitachi High-Tech CorporationInventors: Yuya Matsuoka, Eiichiro Takada
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Patent number: 11906420Abstract: This invention is capable of improving performance of a biochemical analyzer and facilitating the maintenance. A light source includes: a first LED that emits ultraviolet light and a second LED that has a light emission spectrum different from that of the first LED, the first LED and the second LED being disposed in parallel; a reflection surface that is opposite to the first LED and reflects light of the first LED; and a dichroic surface that is opposite to the second LED, reflects light of the first LED, and allows light of the second LED to penetrate.Type: GrantFiled: January 31, 2020Date of Patent: February 20, 2024Assignee: Hitachi High-Tech CorporationInventors: Yoshifumi Sekiguchi, Shin Imamura, Takahiro Ando, Tomoto Kawamura, Yuya Matsuoka, Sakuichiro Adachi, Yasuhiro Keta, Eiichiro Takada
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Publication number: 20240012019Abstract: An automatic analyzer performs a dispensing operation with high throughput while reducing a risk of carry-over of a reagent that includes first and second dispensing operations. The second dispensing operation includes a first procedure of aspirating a sample accommodated by a dispensing nozzle, a second procedure of discharging the aspirated sample to a first reaction container, a third procedure in which a cleaning tank cleans an inner side and an outer side of the dispensing nozzle after the second procedure, a fourth procedure of aspirating the reagent accommodated in a reagent container after the third procedure, a fifth procedure B5 in which the cleaning tank cleans the outer side of the dispensing nozzle after the fourth procedure, a sixth procedure of aspirating the sample accommodated in the first reaction container after the fifth procedure, and a seventh procedure of discharging the reagent and the sample to a second reaction container.Type: ApplicationFiled: October 15, 2021Publication date: January 11, 2024Inventors: Yuka MIYAKE, Koshin HAMASAKI, Eiichiro TAKADA
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Publication number: 20230374377Abstract: The purpose of the present invention is to increase the amount of near-infrared light emitted by a phosphor excited by near-ultraviolet light to blue light. The present invention relates to a phosphor containing gallium oxide Ga2O3 as the base composition, one or two elements selected from Cr and Fe as the light-emitting center, and aluminum fluoride AlF3 as the flux.Type: ApplicationFiled: August 31, 2021Publication date: November 23, 2023Inventors: Masaaki KOMATSU, Shin IMAMURA, Yoshifumi SEKIGUCHI, Takahiro ANDO, Eiichiro TAKADA
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Publication number: 20230333133Abstract: The purpose of the present invention is to provide an automatic analysis device capable of ensuring accuracy in a wide range of a pipetting amount without changing the rotation/vertical speed of a sampling arm and the aspiration speed of a pump. The automatic analysis device according to the present invention, which is an automatic analysis device for analyzing a target substance included in a sample, is characterized by comprising: a detection unit that analyzes the sample; and a probe that pipettes a liquid, wherein the probe changes the number of aspiration by which the liquid is aspirated into the probe according to the pipetting amount by which the probe pipettes the liquid.Type: ApplicationFiled: August 26, 2021Publication date: October 19, 2023Inventors: Kazuhiro NODA, Koshin HAMASAKI, Masayuki KUWABARA, Eiichiro TAKADA
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Publication number: 20230280362Abstract: Provided is an automatic analyzer which does not require a preparation operation of disposing of a reaction vessel on the apparatus in advance and is capable of efficiently performing shifting to an analysis operation. In a reaction promotion unit 108, a holding position located at a reaction vessel disposal position 202 during a first operation cycle is moved to a reaction vessel setting position 201 after an n (n: integer) operation cycle, and from a first operation cycle to an n-th operation cycle, an expendable item transport unit 112 performs an operation of disposing of a reaction vessel from a disposal position without performing an operation of setting the reaction vessel at a setting position in each operation cycle, and performs an operation of setting the reaction vessel at the setting position and an operation of disposing of the reaction vessel from the disposal position in each operation cycle after an (n+1)-th operation cycle.Type: ApplicationFiled: February 10, 2021Publication date: September 7, 2023Inventors: Akira JOJI, Eiichiro TAKADA
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Publication number: 20230236056Abstract: An object of the present invention is to provide a dispensing device capable of preventing bubbles from jumping out of a nozzle and realizing highly accurate dispensing even though the nozzle is moved at a high speed toward a liquid level and is decelerated and stopped at a high acceleration. The dispensing device according to the present invention starts suction of a liquid in a period from when a nozzle starts to be lowered toward a liquid level of the liquid to when an end portion of the nozzle comes into contact with the liquid level of the liquid and the lowering of the nozzle is stopped (see FIG. 6).Type: ApplicationFiled: February 2, 2021Publication date: July 27, 2023Inventors: Masaaki HIRANO, Masafumi SHIMADA, Eiichiro TAKADA, Akihisa MAKINO
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Publication number: 20230184797Abstract: To provide an automatic analyzer in which a reaction container can be smoothly inserted into a hole of an incubator. An automatic analyzer 100 analyzing a sample includes: an incubator 105 having a hole 202 into which a reaction container 114 containing a mixture of the sample and a reagent is to be inserted; and a transfer unit 109 configured to transfer an unused reaction container 114 to the incubator 105 and insert the reaction container 114 into the hole 202. A lubricating member 203 having a self-lubricating property is provided at an inlet port of the hole 202.Type: ApplicationFiled: February 5, 2021Publication date: June 15, 2023Inventors: Norihiro HAYASHIDA, Yuya MATSUOKA, Eiichiro TAKADA
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Publication number: 20230121166Abstract: Provided is an automatic analyzer in which a lid of a reagent vessel does not hinder the dispensing of the reagent. An automatic analyzer for analyzing a specimen includes a reagent dispensing unit for dispensing a reagent from a reagent bottle in which a plurality of reagent vessels storing reagents used for the analysis of the specimen are arranged in one direction, and a reagent rack in which reagent bottles are stored, in which the reagent rack includes a lid opening unit for opening a lid corresponding to an upward opening of the reagent vessel along an arrangement direction of the reagent vessels, and a lid fixing unit for fixing the lid to the outside of a path in which the reagent dispensing unit is inserted into the opening.Type: ApplicationFiled: December 1, 2020Publication date: April 20, 2023Inventors: Yudai FUKUSHI, Yasuhiro KETA, Eiichiro TAKADA, Fuka MATSUDAIRA, Ai MASUDA, Takanori NISHIYAMA
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Publication number: 20230009785Abstract: Provided is an automatic analysis device that reduces the used water amount when cleaning the outside of a probe. An automatic analysis device, including a probe that performs suction and discharge of a sample or a reagent and a cleaning nozzle that discharges cleaning water toward the outside of the probe, includes a first discharging step of starting discharge of the cleaning water from the cleaning nozzle when the tip of the probe is at a first height position and a second discharging step of starting discharge of the cleaning water from the cleaning nozzle when the tip of the probe is at a second height position higher than the first height position, and is provided with a discharge stopping step of stopping the discharge of the cleaning water from the cleaning nozzle between the first discharging step and the second discharging step.Type: ApplicationFiled: October 12, 2020Publication date: January 12, 2023Inventors: Yosuke HORIE, Akihiro NOJIMA, Manabu OCHI, Eiichiro TAKADA, Yuka MIYAKE
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Publication number: 20220397582Abstract: An automatic analysis device improves the uniformity of a mixed liquid by noise agitation by a dispensing mechanism. The dispensing mechanism agitates a mixed liquid by suctioning the mixed liquid into a reaction vessel by a nozzle and then re-discharging the suctioned mixed liquid into the reaction vessel. When the mixed liquid is re-discharged into the reaction vessel, the nozzle is moved upward at a speed higher than a speed at which the liquid surface of the mixed liquid rises due to the re-discharging of the mixed liquid from the nozzle during a first period and lowers the speed of moving the nozzle upward than the speed during the first period while maintaining or reducing the speed at which the liquid surface of the mixed liquid rises due to re-discharging of the mixed liquid from the nozzle during a second period following the first period.Type: ApplicationFiled: October 21, 2020Publication date: December 15, 2022Applicant: Hitachi High-Tech CorporationInventors: Mariko MIYAZAKI, Nobuhiro TSUKADA, Kazuhiro NODA, Eiichiro TAKADA, Yuka MIYAKE
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Publication number: 20220397581Abstract: Provided is an automatic analysis device capable of obtaining a stable light intensity over a wide wavelength band by multiplexing a plurality of LED lights and adjusting the temperature characteristics of each LED element. The automatic analysis device according to the present disclosure is configured such that light emitted from a second LED is reflected to be multiplexed on the same optical axis as the light emitted from a first LED, and the first LED and the second LED are in contact with the same temperature adjustment member.Type: ApplicationFiled: October 7, 2020Publication date: December 15, 2022Applicant: HITACHI HIGH-TECH CORPORATIONInventors: Takahiro ANDO, Sakuichiro ADACHI, Yasuhiro KETA, Yuya MATSUOKA, Hiromitsu MORI, Shin IMAMURA, Eiichiro TAKADA, Makoto ARAI
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Publication number: 20220260602Abstract: An automatic analyzer includes a tube pump, a mounting unit that mounts the liquid delivery target container, a drive mechanism, a liquid surface detecting unit, and a control unit. The tube pump delivers the liquid to the liquid delivery target container during design liquid delivery time necessary to deliver the liquid in a design liquid delivery amount before the tube pump is degraded. The drive mechanism moves the mounting unit mounting the liquid delivery target container from a first position to a second position at which the liquid surface is to be detected by the liquid surface detecting unit. The control unit computes an actual liquid delivery amount of the liquid for the design liquid delivery time based on the first and the second positions, and the control unit determines a degradation state of the tube pump based on the design liquid delivery amount and the actual liquid delivery amount.Type: ApplicationFiled: February 21, 2020Publication date: August 18, 2022Inventors: Shunsuke Hosono, Eiichiro Takada, Koshin Hamasaki
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Publication number: 20220214266Abstract: This invention is capable of improving performance of a biochemical analyzer and facilitating the maintenance. A light source includes: a first LED that emits ultraviolet light and a second LED that has a light emission spectrum different from that of the first LED, the first LED and the second LED being disposed in parallel; a reflection surface that is opposite to the first LED and reflects light of the first LED; and a dichroic surface that is opposite to the second LED, reflects light of the first LED, and allows light of the second LED to penetrate.Type: ApplicationFiled: January 31, 2020Publication date: July 7, 2022Inventors: Yoshifumi SEKIGUCHI, Shin IMAMURA, Takahiro ANDO, Tomoto KAWAMURA, Yuya MATSUOKA, Sakuichiro ADACHI, Yasuhiro KETA, Eiichiro TAKADA
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Publication number: 20220196691Abstract: An automatic analyzer for making measurements for different analysis processes by a compact mechanism. The apparatus performs inspection for plural different analysis processes and includes: an incubator for holding plural reaction vessels on circumferential positions, first and second dispensing mechanisms each having a dispensing nozzle capable of arc-shaped movement around a rotational axis and vertical movement, in which a first locus of an arc-shaped movement of the dispensing nozzle of the first dispensing mechanism and a second locus of the arc-shaped movement of the dispensing nozzle of the second dispensing mechanism intersect the circumference of the incubator where the reaction vessels are arranged, while the first locus and the second locus do not intersect, the first dispensing mechanism is used in a first inspection having a first reaction period, and the second dispensing mechanism is used in a second inspection having a second reaction period longer than the first reaction period.Type: ApplicationFiled: February 5, 2020Publication date: June 23, 2022Inventors: Eiichiro Takada, Yoshihiro Yamashita, Hidetsugu Tanoue, Masashi Fukaya, Fumiya Nehashi
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Patent number: 11360112Abstract: A cleaning water flow velocity during nozzle cleaning is momentarily changed by using a pressure changing mechanism, for example, a syringe. That is, after the start of cleaning, a solenoid valve is opened, and an aspirating operation of the syringe is momentarily performed by a fixed amount in a state where a flow of cleaning water in a nozzle is developed, whereby a nozzle flow velocity is momentarily decelerated. Immediately thereafter, the syringe is pushed back to a home position again, and the flow velocity in the nozzle is accelerated again. A cleaning effect can be improved by performing transition of velocity distribution to various states. Flow velocity control by the pressure changing mechanism can be realized without inhibiting a dispensing cycle, and the cleaning effect of the nozzle can be improved without changing the pressure of a liquid feeding pump or extending the cleaning time.Type: GrantFiled: August 4, 2017Date of Patent: June 14, 2022Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Masashi Fukaya, Eiichiro Takada, Takuya Takahashi
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Patent number: D1003454Type: GrantFiled: February 25, 2022Date of Patent: October 31, 2023Assignee: Hitachi High-Tech CorporationInventors: Yudai Fukushi, Yasuhiro Keta, Eiichiro Takada, Fuka Matsudaira, Ai Masuda
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Patent number: D1004131Type: GrantFiled: February 25, 2022Date of Patent: November 7, 2023Assignee: Hitachi High-Tech CorporationInventors: Yudai Fukushi, Yasuhiro Keta, Eiichiro Takada, Fuka Matsudaira, Ai Masuda
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Patent number: D1006252Type: GrantFiled: February 24, 2022Date of Patent: November 28, 2023Assignee: Hitachi High-Tech CorporationInventors: Yudai Fukushi, Yasuhiro Keta, Eiichiro Takada, Fuka Matsudaira, Ai Masuda
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Patent number: D1015577Type: GrantFiled: February 24, 2022Date of Patent: February 20, 2024Assignee: Hitachi High-Tech CorporationInventors: Yudai Fukushi, Yasuhiro Keta, Eiichiro Takada, Fuka Matsudaira, Ai Masuda