Patents by Inventor Toshiki Yamagata
Toshiki Yamagata 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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Publication number: 20240033745Abstract: This biochemical analysis device has a configuration in which a reaction unit is installed on a device body, the reaction unit including: a test tube unit having a plurality of test tubes or a test tube unit in which a plurality of test tubes can be installed; a cassette guide; and a cassette box that allows attachment/detachment of the cassette guide. The cassette guide includes a flange part, a ventilation opening provided in the flange part, and a test tube insertion part provided to the flange part. The test tube insertion part is a closed structure, the flange part is installed on the upper surface section of the cassette box, and the ventilation opening suctions air above the flange part via negative pressure generated by an internal space of the cassette box.Type: ApplicationFiled: August 31, 2020Publication date: February 1, 2024Inventors: Bohao CHENG, Hayato SHIMIZU, Toshiki YAMAGATA, Masashi SHIBAHARA, Yoko MAKINO
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Publication number: 20240033741Abstract: The present invention provides a thermal cycler capable of rapidly and efficiently heating and cooling a reaction liquid. The thermal cycler according to the present invention comprises: a temperature control block where a reaction vessel can be installed, a thermoelectric conversion unit capable of heating and cooling, a temperature sensor that measures the temperature of the temperature control block, an insulating substrate that is in contact at one surface with the thermoelectric conversion unit, and a heat radiating unit that is provided on the other surface of the insulating substrate and serves for discharging the heat of the thermoelectric conversion unit to the outside, wherein the temperature control block is heated and cooled by controlling a current or voltage supplied to the thermoelectric conversion unit on the basis of the temperature of the temperature adjustment block measured by the temperature sensor.Type: ApplicationFiled: December 18, 2020Publication date: February 1, 2024Applicant: Hitachi High-Tech CorporationInventors: Nobuyuki ISOSHIMA, Tatsuya KOBARI, Masashi SHIBAHARA, Toshiki YAMAGATA, Yoko MAKINO, Wataru SATOH
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Publication number: 20230366901Abstract: The purpose of the present invention is to provide an automatic analysis device with excellent workability while removing dew condensation water that is generated on an inner wall of a reagent storage cabinet. To this end, the present invention comprises a reagent storage cabinet for storing a plurality of reagent containers, wherein the reagent storage cabinet has: a reagent jacket that rotates while holding the reagent containers; a housing that accommodates the reagent jacket; and a lid part that covers the housing from above and that has formed therein a dispensing hole for dispensing the reagent inside the reagent containers, and a sliding contact mechanism, which is capable of switching between a state of being in contact with an inner wall surface of the housing and a state of being spaced away from the inner wall surface of the housing, is provided to the reagent jacket.Type: ApplicationFiled: September 15, 2020Publication date: November 16, 2023Inventors: Yoko MAKINO, Masashi SHIBAHARA, Toshiki YAMAGATA
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Publication number: 20230347352Abstract: This reaction unit, which is used in a genetic testing apparatus, is provided with a test tube unit which has multiple test tubes, or a test tube unit where multiple test tubes can be arranged, and a cassette stand where the test tube unit can be arranged; a ventilation opening is provided on the upper surface of the cassette stand, and by means of an exhaust fan installed in or connected to a lateral surface of the cassette stand, the internal space of the cassette stand is brought to a negative pressure, which generates a downward stream of air towards the ventilation hole from above the test tubes. In this way, the gene testing apparatus can prevent cross-contamination between different samples, and can improve test accuracy.Type: ApplicationFiled: July 2, 2020Publication date: November 2, 2023Applicant: Hitachi High-Tech CorporationInventors: Bohao CHENG, Hayato SHIMIZU, Toshiki YAMAGATA, Yoko MAKINO, Masashi SHIBAHARA
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Publication number: 20230314455Abstract: The present invention determines whether or not a mounted tip and a dispensing amount match with each other in order to prevent contamination in a dispensing device. The present invention is provided with a pipette mechanism 108, 109 that performs suction and discharge, a motor 102 that drives the pipette mechanism, and a pressure sensor 113 that detects a pressure of the pipette mechanism. A dispensing tip 110 is mounted to the pipette mechanism. A control computer 116 controls the motor 102, drives the pipette mechanism in a suction or discharge direction, and determines a type of the dispensing tip 110 on the basis of a difference in pressure waveform detected by the pressure sensor 113.Type: ApplicationFiled: August 3, 2020Publication date: October 5, 2023Inventors: Daisuke HARA, Toshiki YAMAGATA, Masashi SHIBAHARA
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Patent number: 11209450Abstract: A specimen inspection automation system includes holder orientation adjustment mechanisms that adjust the orientations of specimen container holders that each holds one specimen container. The holder orientation adjustment mechanisms each includes: a stopper mechanism that is disposed above a conveyance line that conveys a specimen container holder and restricts the downstream movement of the specimen container holder by abutting, at the same height as a notched part provided on one side of a base of the specimen container holder, an outer circumferential part other than the notched part in the circumferential direction of the base; and a holder rotation mechanism that restricts the movement of the specimen container holder away from the stopper mechanism and rotates the specimen container holder in the circumferential direction. As a result, it is possible to appropriately adjust the orientation of a specimen container in which a specimen is accommodated and reduce work complexity.Type: GrantFiled: January 19, 2017Date of Patent: December 28, 2021Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Kohei Kinugawa, Katsuhiro Kambara, Toshiki Yamagata
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Publication number: 20210237089Abstract: A thermal cycler 160 includes: a support block 3 configured to support a reaction vessel 2; a Peltier element 5 thermally connected to the support block 3 and configured to adjust a temperature of a sample solution 1 stored in the reaction vessel 2 by heating/cooling the support block 3; a temperature sensor 4 configured to measure a temperature of the support block 3; and a temperature adjusting unit 230 configured to control a current and a voltage supplied to the Peltier element 5 based on the temperature of the support block 3 measured by the temperature sensor 4. As the reaction vessel 2, a reaction vessel 2 including a conical portion which opens at an upper portion 21 and tapers toward a lower portion is used, and the Peltier element 5 is arranged so as to be parallel to a conical generatrix 23 portion of the reaction vessel 2.Type: ApplicationFiled: September 28, 2018Publication date: August 5, 2021Applicant: HITACHI HIGH-TECH CORPORATIONInventors: Hayato SHIMIZU, Toshiki YAMAGATA, Yoko MAKINO, Nobutaka KUMAZAKI
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Patent number: 11061044Abstract: Plug-closing processing units are provided with: a first plug chuck parts that grasp plugs; and a second plug chuck part located above the first plug chuck parts, wherein the first plug chuck parts each include at least two first supports that grasp the plugs from more than one direction, and the second plug chuck part is provided with a plug-closing mechanism that includes a second support disposed in the radial direction of plugs and having an inclined lower end surface. Thus, provided are a plug processing device capable of stable plug-opening processing and plug-closing processing on a conveyor line for a specimen container, and a specimen test automation system including the plug processing device.Type: GrantFiled: July 13, 2017Date of Patent: July 13, 2021Assignee: Hitachi High-Tech CorporationInventors: Toshiki Yamagata, Shugo Okabe, Katsuhiro Kambara
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Publication number: 20200341022Abstract: Provided is a dispensing device that can dispense at a high speed and with high precision and that can be miniaturized. This dispensing device suctions a liquid sample into a disposable tip and discharges the suctioned liquid sample, the dispensing device being provided with: a piston receiving part into which a piston is inserted; a tip detachment part that detaches the disposable tip mounted on the front end of the piston receiving part by pressing down the disposable tip; and a force action part that works in tandem with the tip detachment part and moves in the direction opposite to the movement direction of the tip detachment part.Type: ApplicationFiled: December 5, 2018Publication date: October 29, 2020Inventors: Masashi SHIBAHARA, Nobutaka KUMAZAKI, Toshiki YAMAGATA
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Patent number: 10684302Abstract: This specimen inspection automation system is provided with: a processing unit which processes a specimen; a conveying line which conveys carriers; a control device which controls the conveying of the carriers; and external connection modules which deliver the carriers to and from external devices. The control device controls the number of carriers in the specimen inspection automation system within a fixed range on the basis of the number of carriers conveyed into and out of the system by the external connection modules.Type: GrantFiled: August 19, 2016Date of Patent: June 16, 2020Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Shigeki Yamaguchi, Shigeru Yano, Toshiki Yamagata, Hiroki Ihara
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Patent number: 10613107Abstract: A connection unit connects one end of each of two processing systems and includes a processing unit for carrying out necessary processing on a specimen in a specimen container held by a specimen holding rack. The first and second processing systems each have an opening and closing part that can be opened and closed to expose an access surface for an operator. The connection unit is configured so as to connect the first and second processing systems in such a way that a distance along a horizontal plane from the access surface of the first processing system to the one end of the second processing system is longer than a distance by which the opening and closing part of the first processing system moves when opening and closing. Thus, various layouts resulting from the structure are possible within an inspection room without diminishing the ease of operation.Type: GrantFiled: February 26, 2016Date of Patent: April 7, 2020Assignee: Hitachi High-Technologies CorporationInventors: Toshiki Yamagata, Kenichi Takahashi, Hiroki Ihara
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Patent number: 10551398Abstract: When a specimen transport system transfers a specimen container to a transport rack, the specimen container located at a position adjacent to a transfer position thereof is inclined on the rack, and there is a possibility that the one specimen container may collide with the other specimen container when the one specimen container is transferred. Where the transferred specimen container is inclined after being transferred, and a specimen container transfer mechanism is raised from the location, there is also a possibility that the one specimen container and the other specimen container adjacent thereto may collide with each other. Consequently, an inclination angle of a transferred specimen container and a specimen container adjacent thereto is corrected by loading a specimen container inclination correction mechanism including two inclination correction units at a specimen container transfer position. In this manner, a contact risk is suppressed and a stable transfer process is made possible.Type: GrantFiled: March 16, 2016Date of Patent: February 4, 2020Assignee: Hitachi High-Technologies CorporationInventors: Kazuma Tamura, Toshiki Yamagata, Hiroki Ihara
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Publication number: 20190310276Abstract: Plug-closing processing units are provided with: a first plug chuck parts that grasp plugs; and a second plug chuck part located above the first plug chuck parts, wherein the first plug chuck parts each include at least two first supports that grasp the plugs from more than one direction, and the second plug chuck part is provided with a plug-closing mechanism that includes a second support disposed in the radial direction of plugs and having an inclined lower end surface. Thus, provided are a plug processing device capable of stable plug-opening processing and plug-closing processing on a conveyor line for a specimen container, and a specimen test automation system including the plug processing device.Type: ApplicationFiled: July 13, 2017Publication date: October 10, 2019Inventors: Toshiki YAMAGATA, Shugo OKABE, Katsuhiro KAMBARA
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Publication number: 20190101558Abstract: A specimen inspection automation system includes holder orientation adjustment mechanisms that adjust the orientations of specimen container holders that each holds one specimen container. The holder orientation adjustment mechanisms each includes: a stopper mechanism that is disposed above a conveyance line that conveys a specimen container holder and restricts the downstream movement of the specimen container holder by abutting, at the same height as a notched part provided on one side of a base of the specimen container holder, an outer circumferential part other than the notched part in the circumferential direction of the base; and a holder rotation mechanism that restricts the movement of the specimen container holder away from the stopper mechanism and rotates the specimen container holder in the circumferential direction. As a result, it is possible to appropriately adjust the orientation of a specimen container in which a specimen is accommodated and reduce work complexity.Type: ApplicationFiled: January 19, 2017Publication date: April 4, 2019Inventors: Kohei KINUGAWA, Katsuhiro KAMBARA, Toshiki YAMAGATA
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Publication number: 20180246131Abstract: This specimen inspection automation system is provided with: a processing unit which processes a specimen; a conveying line which conveys carriers; a control device which controls the conveying of the carriers; and external connection modules which deliver the carriers to and from external devices. The control device controls the number of carriers in the specimen inspection automation system within a fixed range on the basis of the number of carriers conveyed into and out of the system by the external connection modules.Type: ApplicationFiled: August 19, 2016Publication date: August 30, 2018Inventors: Shigeki YAMAGUCHI, Shigeru YANO, Toshiki YAMAGATA, Hiroki IHARA
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Publication number: 20180120339Abstract: When a specimen transport system transfers a specimen container to a transport rack, the specimen container located at a position adjacent to a transfer position thereof is inclined on the rack, and there is a possibility that the one specimen container may collide with the other specimen container when the one specimen container is transferred. Where the transferred specimen container is inclined after being transferred, and a specimen container transfer mechanism is raised from the location, there is also a possibility that the one specimen container and the other specimen container adjacent thereto may collide with each other. Consequently, an inclination angle of a transferred specimen container and a specimen container adjacent thereto is corrected by loading a specimen container inclination correction mechanism including two inclination correction units at a specimen container transfer position. In this manner, a contact risk is suppressed and a stable transfer process is made possible.Type: ApplicationFiled: March 16, 2016Publication date: May 3, 2018Inventors: Kazuma TAMURA, Toshiki YAMAGATA, Hiroki IHARA
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Publication number: 20180074085Abstract: A connection unit connects one end of each of two processing systems and includes a processing unit for carrying out necessary processing on a specimen in a specimen container held by a specimen holding rack. The first and second processing systems each have an opening and closing part that can be opened and closed to expose an access surface for an operator. The connection unit is configured so as to connect the first and second processing systems in such a way that a distance along a horizontal plane from the access surface of the first processing system to the one end of the second processing system is longer than a distance by which the opening and closing part of the first processing system moves when opening and closing. Thus, various layouts resulting from the structure are possible within an inspection room without diminishing the ease of operation.Type: ApplicationFiled: February 26, 2016Publication date: March 15, 2018Inventors: Toshiki YAMAGATA, Kenichi TAKAHASHI, Hiroki IHARA
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Patent number: 9630181Abstract: The present invention is such a plug application and removal device that mist which is generated upon plug removal of a sample container or a reagent container is not peripherally scattered, or is such a sample processing device that mist which is generated upon dispensing of a sample or a reagent into a container is not mixed to another container. A plug application and removal device has a container holding mechanism that holds a container housing liquid inside and applied with a plug, and has a plug application and removal mechanism that removes or applies the plug from/to the container. The plug application and removal device has: a control mechanism for controlling movement of liquid or mist spilled out of the container upon a process of removal or application of the plug by the plug application and removal mechanism.Type: GrantFiled: August 22, 2012Date of Patent: April 25, 2017Assignee: Hitachi High-Technologies CorporationInventors: Yoshihiro Nagaoka, Kenichi Takahashi, Toshiki Yamagata, Shigeki Yamaguchi
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Patent number: 9535081Abstract: There is provided an automatic analysis system that dispenses samples and reagents into a plurality of reaction vessels to cause reaction and to measure the liquid resulting from the reaction. The system implements a method of handling capped sample containers such as vacuum blood collection tubes along transfer routes. A sample container opening/closing mechanism is provided which removes the caps of the sample containers prior to sample dispensing and which closes the sample containers following sample dispensing using the same corresponding caps as before the dispensing. Also provided is an opening/closing mechanism that retains and manages the caps removed from the sample containers, as well as a transport unit capable of selecting one of the transport routes which fits the identified sample containers so as to close them with the fit caps.Type: GrantFiled: June 26, 2012Date of Patent: January 3, 2017Assignee: Hitachi High-Technologies CorporationInventors: Toshiki Yamagata, Kenichi Takahashi, Takahiro Sasaki, Shigeki Yamaguchi
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Patent number: 9505507Abstract: An automatic analyzer of the present invention includes: a cap opening and closing mechanism including a plurality of types of support bodies, each being adaptable to a specific type of cap; an information control mechanism for sample containers; a cap opening and closing mechanism that performs uncapping and capping operations based on a sample container identifying process; and an uncapping/capping monitoring mechanism that determines an uncapping or capping operation. The cap opening and closing mechanism is thus configured so as to be capable of performing the uncapping and capping processes for different types of caps. This provides a cap opening and closing mechanism that enables the single cap opening and closing mechanism to perform the uncapping process and the capping process for different types of caps on a transfer path of sample containers in the automatic analyzer.Type: GrantFiled: June 26, 2012Date of Patent: November 29, 2016Assignee: Hitachi High-Technologies CorporationInventors: Toshiki Yamagata, Kenichi Takahashi, Takahiro Sasaki, Shigeki Yamaguchi