Patents by Inventor Taichiro Yamashita
Taichiro Yamashita 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: 20250003997Abstract: Provided is an automatic analyzer capable of reducing bumping of a liquid sample. The automatic analyzer includes a reaction container, a heating member, an exhaust unit, and a reaction container moving member. The automatic analyzer executes a first evaporative concentration step in which the exhaust unit aspirates vapor in the reaction container and the heating member heats the reaction container with a first heat quantity in a state where the reaction container is at a separation position, and a second evaporative concentration step in which the exhaust unit aspirates vapor in the reaction container and the heating member heats the reaction container with a second heat quantity larger than the first heat quantity in a state where the reaction container is at a contact position.Type: ApplicationFiled: October 28, 2022Publication date: January 2, 2025Inventors: Shingo OHTA, Taichiro YAMASHITA, Takumi ITO, Shinya MATSUOKA, Mayuko ITO, Susumu SAKAIRI
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Patent number: 12163971Abstract: A driving mechanism for moving a vessel having a disposal box placed thereon in a front-rear direction the same as an opening/closing direction of a drawer is provided lower than a bottom surface of the vessel. A first rail extended in a movement direction of an operating unit, a second rail extended in a movement direction of the vessel provided in the drawer, and toothed pulleys for rotating a toothed belt within a horizontal plane are arranged. The first rail, the second rail, and the toothed belt are placed side by side without overlapping with each other in a vertical direction. As a result, the operation of taking out the disposal box in which used sample dispensing tips or reaction vessels are accumulated is simple.Type: GrantFiled: August 22, 2018Date of Patent: December 10, 2024Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Taichiro Yamashita, Takenori Okusa, Susumu Sakairi
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Patent number: 12061208Abstract: The automatic analysis device includes: a reagent tank that holds a reagent container that contains a reagent; and a lid opening/closing device including a lid opening/closing member configured to be movable in a first direction parallel to a vertical direction and a second direction perpendicular to the first direction. The lid opening/closing member has a first member for opening a lid of the reagent container and a second member for closing the lid. The lid opening/closing member is configured to be movable between a first position and a second position, the first position located above the reagent container and the second position located below the first position in the first direction such that the bottom surface of the lid opening/closing member comes into contact with the reagent container, and the lid opening/closing member is configured to be movable between the second position and a third position that is away from the second position in the second direction.Type: GrantFiled: June 21, 2019Date of Patent: August 13, 2024Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Taichiro Yamashita, Takenori Okusa, Susumu Sakairi
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Publication number: 20240192181Abstract: A chromatograph allows easy replacement of a separation column while preventing an operator from contacting with a configuration related to the separation column. A column cartridge accommodates the separation column and is detachably provided in a predetermined column installation position. An upstream pipe is detachably provided on the column cartridge in a state of being installed at the column installation position, and supplies a mobile phase to the separation column of the column cartridge. A downstream pipe is detachably provided on the column cartridge in a state of being installed at the column installation position, and delivers the mobile phase that has passed through the separation column of the column cartridge. A cover integrally covers the column installation position, the upstream pipe, and the downstream pipe and has an insertion hole that allows the column cartridge to be installed from the outer side of the cover.Type: ApplicationFiled: February 2, 2022Publication date: June 13, 2024Inventors: Yusuke SHIMIZU, Yu IIJIMA, Taichiro YAMASHITA, Ai MASUDA, Daichi FURUKAWA
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Publication number: 20240183874Abstract: An expendable supply device includes a drawer that is supported so as to be horizontally movable in the front-rear direction between an open position and a closed position through a front-face opening; a table that allows an expendable or a processing unit used for analysis to be mounted in the drawer; and a moving-direction transforming device that, while the drawer is moved toward the rear side from the open position to the closed position, moves horizontally until the expendable or the processing unit mounted on the table passes through the front-face opening from the front side to the rear side and moves the table toward the upper side in synchronization with the horizontal movement of the drawer toward the rear side after the expendable or the processing unit mounted on the table passes through the front-face opening.Type: ApplicationFiled: February 15, 2024Publication date: June 6, 2024Inventors: Taichiro YAMASHITA, Takenori OKUSA
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Publication number: 20240142479Abstract: Provided are: a connection device with which it is possible to improve the degree of freedom in positioning of an analysis device that analyzes a specimen; and an automated system for inspecting a specimen, the system comprising the connection device.Type: ApplicationFiled: October 21, 2020Publication date: May 2, 2024Inventors: Shigeki YAMAGUCHI, Masashi ENDO, Taichiro YAMASHITA
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Publication number: 20240094160Abstract: Problem Provided is an electrolyte analyzer that allows reducing a load of a user in a replacement work compared with conventional one. Solution An electrolyte analyzer includes an ISE electrode 1 that includes at least one electrode, a reference electrode 2 that includes at least one electrode different from the ISE electrode 1, and a housing 200 that houses the electrodes of the ISE electrode 1 and the reference electrode 2. The housing 200 includes a pressing unit that presses the electrodes to one another, a first press switching unit 210 that switches the ISE electrode 1 between a secured state and a released state, and a second press switching unit 215 that switches the reference electrode 2 between a secured state and a released state. The ISE electrode 1 and the reference electrode 2 are each switched between the secured state and the released state. Selected Drawing: FIG.Type: ApplicationFiled: December 7, 2021Publication date: March 21, 2024Applicant: Hitachi High-Tech CorporationInventors: Takushi MIYAKAWA, Taichiro YAMASHITA
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Patent number: 11933800Abstract: The present invention provides: a drawer that is supported so as to be horizontally movable in the front-rear direction between an open position and a closed position through a front-face opening; a table that allows an expendable or a processing unit used for analysis to be mounted in the drawer; and a moving-direction transforming means that, while the drawer is moved toward the rear side from the open position to the closed position, moves horizontally until the expendable or the processing unit mounted on the table passes through the front-face opening from the front side to the rear side and moves the table toward the upper side in synchronization with the horizontal movement of the drawer toward the rear side after the expendable or the processing unit mounted on the table passes through the front-face opening. This makes it possible to easily and reliably perform the work of replacing a chip rack.Type: GrantFiled: June 26, 2018Date of Patent: March 19, 2024Assignee: Hitachi High-Technologies CorporationInventors: Taichiro Yamashita, Takenori Okusa
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Patent number: 11927032Abstract: An automated analysis device is provided with a casing accommodating an analysis device. A cover is axially supported with freedom to pivot, between a closed position and an upwardly-open open position, about a support shaft provided at one side of the casing. A closing device is capable of inhibiting opening of the cover in the closed position, and is provided with a projecting portion that protrudes from a front surface of the cover toward the rear, a lock lever which is axially supported with freedom to pivot about a pivoting support shaft, and which pivots from the work surface in a direction approaching the projecting portion to engage with the projection portion, thereby inhibiting opening of the cover. A safety cover can thus be locked securely.Type: GrantFiled: February 13, 2019Date of Patent: March 12, 2024Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Taichiro Yamashita, Takenori Okusa, Susumu Sakairi
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Publication number: 20240060941Abstract: A technique for replacing a separation column includes: a driving device supporting a first pipe along a first direction; a fixing member that fixes a second pipe to be opposed to the first pipe along the first direction; a column case between the first pipe and the second pipe, having a first and second holes communicating with the first and second pipes, respectively; and an interlocking mechanism that moves the column case in the first direction in conjunction with movement of the first pipe. The column case allows a column cartridge retaining a separation column to be connected and disconnected. The driving device moves the first pipe and the interlocking mechanism such that two states are reversibly taken; a closed state in which the separation column is between the first and second pipes and an open state in which the first and second pipes are positioned outside the column case.Type: ApplicationFiled: November 26, 2021Publication date: February 22, 2024Applicant: HITACHI HIGH-TECH CORPORATIONInventors: Taichiro YAMASHITA, Shoji TOMIDA, Yusuke SHIMIZU, Yu IIJIMA, Ai MASUDA, Daichi FURUKAWA
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Publication number: 20230324428Abstract: Provided is an automatic analyzer capable of reliably closing an openable lid provided in an opening for accessing a region covered by a cover. An automatic analyzer includes an incubator cover disposed to cover a preprocessing region provided on an operation surface on a housing, an openable lid disposed to openably cover an opening portion provided in the incubator cover in order to access the inside from the outside of the preprocessing region, and a safety cover disposed to cover upper portions of the operation surface and the preprocessing region, and the openable lid is moved to a closed position in association with movement of the safety cover from an opened position to the closed position in a case where the openable lid is at the opened position and the safety cover is at the opened position.Type: ApplicationFiled: February 5, 2021Publication date: October 12, 2023Inventors: Tsukasa SUENARI, Takenori OKUSA, Taichiro YAMASHITA
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Publication number: 20230258675Abstract: An opening and closing lid device includes: an opening and closing lid that covers and freely opens or closes an opening portion that covers a first region including a pretreatment device; a support arm that connects the opening and closing lid and a support shaft in the first region, and is rotatably supported by the support shaft; and an opening holding mechanism that holds the support arm so as to hold the opening and closing lid in a fully opened position when a tip end of the opening and closing lid is at a position higher than a predetermined reference height, and releases holding of the support arm so that the opening and closing lid moves to the fully closed position due to own weight when the tip end of the opening and closing lid is at a position lower than the reference height.Type: ApplicationFiled: February 18, 2021Publication date: August 17, 2023Applicant: Hitachi High-Tech CorporationInventors: Taichiro YAMASHITA, Takenori OKUSA, Tsukasa SUENARI
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Publication number: 20230184793Abstract: To provide an automatic analyzer with improved workability when a flow cell is loaded and unloaded. The automatic analyzer includes: a photomultiplier tube; a board disposed vertically below the photomultiplier tube; and a flow cell disposed vertically below the board. A lower surface of the board has a protrusion portion and/or a recess portion, and an upper surface of the flow cell has a recess portion and/or a protrusion portion. The automatic analyzer includes a pressing member configured to press the flow cell vertically upward from below in a state in which the recess portion and/or the protrusion portion of the flow cell is fitted to the protrusion portion and/or the recess portion of the board.Type: ApplicationFiled: February 26, 2021Publication date: June 15, 2023Applicant: Hitachi High-Tech CorporationInventors: Yuri KAJIHARA, So OGUCHI, Taichiro YAMASHITA, Yoshiaki SUGIMURA, Aiko MIYAKAWA
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Publication number: 20230070182Abstract: Provided is an automatic analyzer that improves workability when carrying in and out a flow cell. A flow cell that allows a reaction liquid including a specimen and a reagent to pass, a photodetector for detecting light emitted by the reaction liquid, and a housing for housing the flow cell and the photodetector are included, in which the housing includes a lid that opens and closes when the flow cell is carried in and out of the housing, the lid is connected to the housing via a hinge, and a fixing member for fixing the lid in a closed state is provided on the lid or the housing.Type: ApplicationFiled: February 2, 2021Publication date: March 9, 2023Applicant: HITACHI HIGH-TECH CORPORATIONInventors: Yuri Kajihara, Taichiro Yamashita, So Oguchi, Yoshiaki Sugimura, Aiko Nishitani
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Publication number: 20220357354Abstract: Provided are a sample container gripping device capable of gripping a sample container without allowing foreign matter to be mixed into a sample, a sample conveyance device comprising the sample container gripping device, and a connection device. This sample container gripping device for gripping a sample container accommodating a sample is characterized by comprising a pair of clamps that are kept outside of a conveyance path, which is for conveying a sample carrier upon which the sample container is placed, until the sample carrier is conveyed to a prescribed position and, when the sample carrier is conveyed to the prescribed position, move horizontally toward the conveyance path so as to grip the sample container from the horizontal direction at the prescribed position.Type: ApplicationFiled: July 29, 2020Publication date: November 10, 2022Inventors: Taichiro YAMASHITA, Shigeki YAMAGUCHI, Masashi ENDO
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Publication number: 20220206022Abstract: An interlock unit for preventing rotation from a closed position of a cover to an open position thereof, includes: a hollow case having a rectangular parallelepiped shape disposed at a position adjacent to an inner side surface of a casing, below an end part opposite to a support shaft at the closed position of the cover; an action member that is provided on an upper surface of the case, supported to be movable between a non-operating position and an operating position, and engaged with a protruding part provided on the cover at the operating position to inhibit the cover from rotating toward the open position; electromagnetic drive means provided below the action member to drive the action member; and drive connecting means for driving the action member by connecting the action member and the electromagnetic drive means and transmitting an operation of the electromagnetic drive means to the action member.Type: ApplicationFiled: February 13, 2020Publication date: June 30, 2022Applicant: HITACHI HIGH-TECH CORPORATIONInventors: Taichiro YAMASHITA, Tsukasa SUENARI, Takenori OKUSA
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Publication number: 20220178955Abstract: An automatic analyzer capable of improving maintainability by facilitating access to an interlock unit. The interlock unit includes an operation member configured to be movably supported between a lock position and a lock release position, and obstruct rotation to an open position of a cover; an electromagnetic driving unit configured to drive the operation member, and a driving connecting unit configured to connect the operation member and the electromagnetic driving unit and drive the operation member by conveying an operation of the electromagnetic driving unit to the operation member. The interlock unit is provided to be attachable and detachable to and from the housing.Type: ApplicationFiled: February 6, 2020Publication date: June 9, 2022Applicant: HITACHI HIGH-TECH CORPORATIONInventors: Tsukasa Suenari, Taichiro Yamashita, Takenori Okusa
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Publication number: 20210349116Abstract: The automatic analysis device includes: a reagent tank that holds a reagent container that contains a reagent; and a lid opening/closing device including a lid opening/closing member configured to be movable in a first direction parallel to a vertical direction and a second direction perpendicular to the first direction. The lid opening/closing member having a first member for opening a lid of the reagent container and a second member for closing the lid and configured to be movable between a first position and a second position, the first position located above the reagent container and the second position located below the first position in the first direction such that the bottom surface of the lid opening/closing member comes into contact with the reagent container and configured to be movable between the second position and a third position that is away from the second position in the second direction.Type: ApplicationFiled: June 21, 2019Publication date: November 11, 2021Inventors: Taichiro YAMASHITA, Takenori OKUSA, Susumu SAKAIRI
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Patent number: D1044034Type: GrantFiled: February 28, 2023Date of Patent: September 24, 2024Assignee: Hitachi High-Tech CorporationInventors: Daichi Furukawa, Ai Masuda, Yusuke Shimizu, Yu Iijima, Taichiro Yamashita
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Patent number: D1054058Type: GrantFiled: February 28, 2023Date of Patent: December 10, 2024Assignee: Hitachi High-Tech CorporationInventors: Daichi Furukawa, Ai Masuda, Yusuke Shimizu, Yu Iijima, Taichiro Yamashita