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公开(公告)号：US11310971B2
公开(公告)日：2022-04-26
申请号：US17177738
申请日：2021-02-17
Applicant: The Ritsumeikan Trust , ABLIC Inc.
Inventor： Takakuni Douseki , Ami Tanaka , Syuuichi Okamoto , Ryoma Furumori , Fumiyasu Utsunomiya
Abstract: A plant cultivation system includes: a first sensor configured to output a sensor signal corresponding to an amount of water in a plant; a second sensor configured to output a sensor signal corresponding to a measurement value of an environment condition; and a controller, wherein the controller is configured to, by using a sensor signal from the first sensor obtained by the first sensor measuring a plant to be cultivated and a sensor signal from the second sensor obtained by the second sensor measuring an environment for cultivating the plant to be cultivated, control a specific environment parameter corresponding to the environment condition and measured by the second sensor, in a cultivation environment for the plant to be cultivated.
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公开(公告)号：US10447155B2
公开(公告)日：2019-10-15
申请号：US16054692
申请日：2018-08-03
Applicant: ABLIC INC. , The Ritsumeikan Trust
Inventor： Fumiyasu Utsunomiya , Takakuni Douseki , Ami Tanaka
Abstract: A power source device has: a storage unit configured to receive a generated power and store as a storage power; a boost unit configured to generate, from a storage power supplied from the storage unit, a boosted power having a higher voltage than a voltage of the storage power, and supply the boosted power to a load; and a voltage detection unit configured to output a boost operation permission signal permitting a boost operation of the boost unit to the boost unit when the storage voltage of the boost unit increases to become a voltage equal to or higher than a minimum operation voltage of the boost unit. The boost unit is configured to start the boost operation by the storage power supplied from the storage unit and operates on the boosted power generated by the boost operation as an operation power source when the boost operation permission signal is output from the voltage detection unit.
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公开(公告)号：US20190257694A1
公开(公告)日：2019-08-22
申请号：US16277215
申请日：2019-02-15
Applicant: ABLIC INC. , The Ritsumeikan Trust
Inventor： Fumiyasu Utsunomiya , Takakuni Douseki , Ami Tanaka
Abstract: A signal detection circuit includes: a power terminal; a first current limitation circuit; a second current limitation circuit; a current-voltage conversion circuit; a first p-channel MOS transistor including a source, a gat, and a drain; a first n-channel MOS transistor including a drain, a gate, and a source; and a second n-channel MOS transistor in which a drain is connected to a first connection point connecting the resistor with the drain of the first n-channel MOS transistor, a gate is connected to a second connection point connecting the drain of the first p-channel MOS transistor with the current-voltage conversion circuit, and a source is grounded.
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公开(公告)号：US10355588B2
公开(公告)日：2019-07-16
申请号：US16006379
申请日：2018-06-12
Applicant: ABLIC INC. , The Ritsumeikan Trust
Inventor： Fumiyasu Utsunomiya , Takakuni Douseki , Ami Tanaka
Abstract: A power source device includes a storage capacitor, a voltage detection circuit, input terminals, and output terminals, further includes: a boost circuit which converts a storage power provided to the input terminals to a boosted power under the condition that a stored voltage becomes equal to or greater than the predetermined voltage, and outputs the boosted power from the output terminals; and a MOS transistor which controls a supply of the boosted power to a load. One of the input terminals is connected to a gate terminal of the MOS transistor, and one of the output terminals is connected to a source terminal of the MOS transistor. The MOS transistor turns on to convert the storage power to the boosted power in the boost circuit, while the MOS transistor turns off not to convert the storage power to the boosted power in the boost circuit.
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公开(公告)号：US10794770B2
公开(公告)日：2020-10-06
申请号：US16277215
申请日：2019-02-15
Applicant: ABLIC INC. , The Ritsumeikan Trust
Inventor： Fumiyasu Utsunomiya , Takakuni Douseki , Ami Tanaka
IPC: H03F3/08 , G05F3/16 , G01J5/34 , G01R19/00 , H03K19/0944
Abstract: A signal detection circuit includes: a power terminal; a first current limitation circuit; a second current limitation circuit; a current-voltage conversion circuit; a first p-channel MOS transistor including a source, a gat, and a drain; a first n-channel MOS transistor including a drain, a gate, and a source; and a second n-channel MOS transistor in which a drain is connected to a first connection point connecting the resistor with the drain of the first n-channel MOS transistor, a gate is connected to a second connection point connecting the drain of the first p-channel MOS transistor with the current-voltage conversion circuit, and a source is grounded.
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Patent Agency Ranking
公开(公告)号：US20180342949A1
公开(公告)日：2018-11-29
申请号：US16054692
申请日：2018-08-03
Applicant: ABLIC INC. , The Ritsumeikan Trust
Inventor： Fumiyasu Utsunomiya , Takakuni Douseki , Ami Tanaka
CPC classification number: H02M3/07 , H02J7/0063 , H02J2007/0095 , H02M1/08
Abstract: A power source device has: a storage unit configured to receive a generated power and store as a storage power; a boost unit configured to generate, from a storage power supplied from the storage unit, a boosted power having a higher voltage than a voltage of the storage power, and supply the boosted power to a load; and a voltage detection unit configured to output a boost operation permission signal permitting a boost operation of the boost unit to the boost unit when the storage voltage of the boost unit increases to become a voltage equal to or higher than a minimum operation voltage of the boost unit. The boost unit is configured to start the boost operation by the storage power supplied from the storage unit and operates on the boosted power generated by the boost operation as an operation power source when the boost operation permission signal is output from the voltage detection unit.
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公开(公告)号：US09923411B2
公开(公告)日：2018-03-20
申请号：US15194693
申请日：2016-06-28
Applicant: SII Semiconductor Corporation , The Ritsumeikan Trust
Inventor： Fumiyasu Utsunomiya , Takakuni Douseki , Ami Tanaka
CPC classification number: H02J7/355 , G06F3/03543 , G06F3/0383 , H02J7/0072
Abstract: An electronic device includes: a light detection circuit having a first light sensor and a second light sensor each generating a photocurrent by photoelectric conversion, a resistive element which allows a difference between the photocurrents generated by the first light sensor and the second light sensor to flow, and a voltage detection circuit which detects a voltage generated by the flow of the differential photocurrent through the resistive element, said electronic device being controlled in operation by an output signal of the light detection circuit; a storing unit charged each time the electronic device is operated; and a rectifying element provided between the storing unit and the resistive element. A current with which the storing unit is charged is made to flow to the resistive element through the rectifying element.
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公开(公告)号：US20180152100A1
公开(公告)日：2018-05-31
申请号：US15819717
申请日：2017-11-21
Applicant: SII Semiconductor Corporation , The Ritsumeikan Trust
Inventor： Fumiyasu Utsunomiya , Takakuni Douseki , Ami Tanaka
CPC classification number: H02M3/07 , H02J7/0063 , H02J2007/0095 , H02M1/08
Abstract: A power source device has: a storage unit configured to receive a generated power and store as a storage power; a boost unit configured to generate, from a storage power supplied from the storage unit, a boosted power having a higher voltage than a voltage of the storage power, and supply the boosted power to a load; and a voltage detection unit configured to output a boost operation permission signal permitting a boost operation of the boost unit to the boost unit when the storage voltage of the boost unit increases to become a voltage equal to or higher than a minimum operation voltage of the boost unit. The boost unit is configured to start the boost operation by the storage power supplied from the storage unit and operates on the boosted power generated by the boost operation as an operation power source when the boost operation permission signal is output from the voltage detection unit.
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公开(公告)号：US09236747B2
公开(公告)日：2016-01-12
申请号：US13871380
申请日：2013-04-26
Applicant: Seiko Instruments Inc. , The Ritsumeikan Trust
Inventor： Fumiyasu Utsunomiya , Takakuni Douseki , Ami Tanaka
CPC classification number: H02J7/00 , H01M10/44 , H02J7/0068 , H02J7/345
Abstract: Provided is an electronic device capable of supplying desired electric power to a load so as to operate the load even in a case where charged power is minute and a voltage increase rate of a capacitor, which increases by charge, is low. The electronic device includes: a power source which has supply power less than consumption power of the load; a capacitor to be charged with the supply power; and a charge/discharge control circuit which controls charging of the capacitor and consumption of charged power of the capacitor by the load, and the charge/discharge control circuit includes: a first node to which the supply power of the power source is supplied; and a circuit which charges the capacitor with the supply power from the first node.
Abstract translation: 提供一种能够向负载提供期望的电力以便即使在充电功率微小的情况下操作负载并且由电荷增加的电容器的电压增加率低的电子设备。 该电子设备包括：电源，其功率小于负载的消耗功率; 一个要供电的电容器; 以及充电/放电控制电路，其控制电容器的充电和负载对电容器的充电功率的消耗，并且充放电控制电路包括：提供电源的供电的第一节点; 以及电路，其具有来自第一节点的供电功率。
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公开(公告)号：US10333400B2
公开(公告)日：2019-06-25
申请号：US15839162
申请日：2017-12-12
Applicant: SII Semiconductor Corporation , The Ritsumeikan Trust
Inventor： Fumiyasu Utsunomiya , Takakuni Douseki , Ami Tanaka
IPC: H02M1/36 , H02M3/156 , H02H7/12 , H02M1/42 , H02M3/07 , H02M3/137 , H02M3/155 , H02M1/00 , H02J1/00
Abstract: A boost DC-DC converter includes: an input terminal; an output terminal; a first boost circuit configured to generate, from an input power to the input terminal, a first boosted power having a higher voltage than a voltage of the input power, and outputs the generated first boosted power from the output terminal; a second boost circuit configured to generate, from the input power, a second boosted power having a higher voltage than the voltage of the input power; and a storage capacitor configured to store the second boosted power as a storage power, and supply the storage power to the first boost circuit as an operation power source. The first boost circuit is configured to start a boost operation with the storage power when a voltage of the storage power is equal to or higher than a minimum operation voltage of the first boost circuit.
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