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公开(公告)号：US20240319243A1
公开(公告)日：2024-09-26
申请号：US18614017
申请日：2024-03-22
Applicant: Rohm Co., Ltd.
Inventor： Kenji Hamachi
CPC classification number: G01R27/28 , G01R31/2839
Abstract: An analysis device includes an extraction unit configured to use reflection characteristic and transmission characteristic included in S-parameters of a DUT measured by a series-through measurement method with a frequency characteristic measurement device, so as to extract a pole frequency, a zero point frequency, and a low frequency part of gain that can be approximated as a DC component, from gains and phases of the reflection characteristic and the transmission characteristic; and a calculation unit configured to calculate circuit constants of an equivalent circuit of the DUT, from the pole frequency, the zero point frequency, and the low frequency part. The equivalent circuit is a circuit assumed to be consisting of a capacitor connected in parallel with a serial connection body of a resistor and an inductor.
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公开(公告)号：US11742774B2
公开(公告)日：2023-08-29
申请号：US17812205
申请日：2022-07-13
Applicant: ROHM CO., LTD
Inventor： Kenji Hamachi , Akeyuki Komatsu
CPC classification number: H02M7/217 , H02M3/01 , H02M3/33569 , H02M1/0058 , H02M1/083 , H02M1/34 , H02M1/36
Abstract: Disclosed are a switch driving device, in which individual zero voltage switching control of a first switch element and a second switch element forming a bidirectional switch is performed, and a switching power supply including a primary winding to which an alternating-current input voltage is applied, a secondary winding electromagnetically coupled to the primary winding, the bidirectional switch connected in series with the primary winding, a resonance capacitor connected in parallel with at least one of the bidirectional switch and the primary winding, a full-wave rectifier circuit that performs full-wave rectification of an induced voltage occurring in the secondary winding, a smoothing capacitor that smooths output of the full-wave rectifier circuit, and the switch driving device that drives the bidirectional switch. The alternating-current input voltage is directly converted into a direct-current output voltage by extracting a flyback voltage or a forward voltage and the flyback voltage from the secondary winding.
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公开(公告)号：US09267940B2
公开(公告)日：2016-02-23
申请号：US14642860
申请日：2015-03-10
Applicant: Rohm Co., Ltd.
Inventor： Keiji Iwamoto , Kazuhiro Oguchi , Kenji Hamachi
CPC classification number: G01N33/5302 , B01L3/502723 , B01L3/502738 , B01L3/5085 , B01L2200/0605 , B01L2200/0621 , B01L2200/10 , B01L2300/0803 , B01L2300/0864 , B01L2300/0867 , B01L2300/087 , B01L2400/0409 , G01N21/07 , G01N21/6428 , G01N35/00069
Abstract: The present invention provides a disc-like assay chip, and more specifically, the present invention provides an assay chip which can effectively clean a cleaned object existing in a fluid loop, and can be appropriately applied to a detection method of a reaction system using a step of necessarily cleaning the cleaned object, such as an immunofluorescent antibody method, and applied to a detection method using an enzymatic reaction (especially, an ELISA method). The present invention further provides a disc-like assay chip which is mounted on a centrifugal device such as a rotational disc and can perform detection or quantitation on a target substance through optical measurement after a specimen and a reagent react by use of a centrifugal force generated by rotation of the centrifugal device.
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Patent Agency Ranking
公开(公告)号：US20140314636A1
公开(公告)日：2014-10-23
申请号：US14251836
申请日：2014-04-14
Applicant: ROHM CO., LTD.
Inventor： Shun Momose , Kenji Hamachi , Naoyuki Usagawa , Xin Wang , Hiroki Takeuchi , Yuki Shiritani , Tetsuya Ooka
IPC: B01L3/00
CPC classification number: B01L3/502715 , A61B5/150022 , A61B5/150358 , A61B5/157 , B01L2200/027 , B01L2300/043 , B01L2300/045 , B01L2300/0816 , B01L2400/0406 , B01L2400/0409
Abstract: There is provided a microchip including a fluid circuit composed of a space formed inside, and causing a liquid present in the fluid circuit to move within the fluid circuit by application of centrifugal force, the microchip including: an opening provided in a surface of the microchip and connected to the fluid circuit; a lid portion for opening and closing the opening; and a specimen take-in portion provided at the lid portion or in the opening, for taking in a specimen.
Abstract translation: 提供了一种微芯片，其包括由内部形成的空间构成的流体回路，并且使存在于流体回路中的液体通过施加离心力在流体回路内移动，该微芯片包括：设置在微芯片表面的开口 并连接到流体回路; 用于打开和关闭开口的盖部分; 以及设置在盖部或开口部的试样取入部，用于吸取试样。
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公开(公告)号：US11892534B2
公开(公告)日：2024-02-06
申请号：US17655880
申请日：2022-03-22
Applicant: ROHM Co., LTD.
Inventor： Kenji Hamachi
CPC classification number: G01R35/005 , G01R23/02
Abstract: A frequency characteristic measurement apparatus includes a calibration circuit configured to perform a SOLT calibration on cable end surfaces, a first measurement circuit measuring S-parameters of a first substrate provided with a DUT, after the SOLT calibration by the calibration circuit, a second measurement circuit measuring S-parameters of a second substrate after the SOLT calibration by the calibration circuit, and an extraction circuit performing a vector operation of a measurement result of the first measurement circuit and a measurement result of the second measurement circuit to extract S-parameters of the DUT. The extraction circuit assumes that a reflection of each of first second fixtures obtained by virtually dividing the second substrate into two parts at the center, on an end surface of the second substrate is equal to or smaller than a reflection on an end surface of the second substrate without the virtual division at the center.
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公开(公告)号：US11356029B2
公开(公告)日：2022-06-07
申请号：US16916954
申请日：2020-06-30
Applicant: ROHM Co., LTD.
Inventor： Kenji Hamachi , Akeyuki Komatsu
Abstract: Disclosed are a rectifying circuit and a switched-mode power supply. The rectifying circuit includes a first rectifying section for rectifying a positive induced voltage generated across a secondary winding of a transformer, a second rectifying section for rectifying a negative induced voltage generated across the secondary winding, and an inductance section connected between the first rectifying section and the second rectifying section. The switched-mode power supply includes a transformer having a primary winding and a secondary winding, a drive circuit for switchingly driving the primary winding of the transformer, and the rectifying circuit connected to the secondary winding of the transformer.
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公开(公告)号：US20150226730A1
公开(公告)日：2015-08-13
申请号：US14642860
申请日：2015-03-10
Applicant: Rohm Co., Ltd
Inventor： Keiji Iwamoto , Kazuhiro Oguchi , Kenji Hamachi
CPC classification number: G01N33/5302 , B01L3/502723 , B01L3/502738 , B01L3/5085 , B01L2200/0605 , B01L2200/0621 , B01L2200/10 , B01L2300/0803 , B01L2300/0864 , B01L2300/0867 , B01L2300/087 , B01L2400/0409 , G01N21/07 , G01N21/6428 , G01N35/00069
Abstract: The present invention provides a disc-like assay chip, and more specifically, the present invention provides an assay chip which can effectively clean a cleaned object existing in a fluid loop, and can be appropriately applied to a detection method of a reaction system using a step of necessarily cleaning the cleaned object, such as an immunofluorescent antibody method, and applied to a detection method using an enzymatic reaction (especially, an ELISA method). The present invention further provides a disc-like assay chip which is mounted on a centrifugal device such as a rotational disc and can perform detection or quantitation on a target substance through optical measurement after a specimen and a reagent react by use of a centrifugal force generated by rotation of the centrifugal device.
Abstract translation: 本发明提供一种盘状测定芯片，更具体地说，本发明提供一种能够有效地清洁存在于流体回路中的被清洁物体的测定芯片，并且可以适当地应用于使用 必须清洁被清洁物体的步骤，例如免疫荧光抗体法，并应用于使用酶反应的检测方法（特别是ELISA法）。 本发明还提供了一种盘状测定芯片，其安装在诸如旋转盘的离心装置上，并且可以通过使用产生的离心力在样品和试剂反应之后通过光学测量对目标物质进行检测或定量 通过离心装置的旋转。
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公开(公告)号：US11424691B2
公开(公告)日：2022-08-23
申请号：US16915372
申请日：2020-06-29
Applicant: ROHM Co., LTD.
Inventor： Kenji Hamachi , Akeyuki Komatsu
Abstract: Disclosed are a switch driving device, in which individual zero voltage switching control of a first switch element and a second switch element forming a bidirectional switch is performed, and a switching power supply including a primary winding to which an alternating-current input voltage is applied, a secondary winding electromagnetically coupled to the primary winding, the bidirectional switch connected in series with the primary winding, a resonance capacitor connected in parallel with at least one of the bidirectional switch and the primary winding, a full-wave rectifier circuit that performs full-wave rectification of an induced voltage occurring in the secondary winding, a smoothing capacitor that smooths output of the full-wave rectifier circuit, and the switch driving device that drives the bidirectional switch. The alternating-current input voltage is directly converted into a direct-current output voltage by extracting a flyback voltage or a forward voltage and the flyback voltage from the secondary winding.
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