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公开(公告)号：US11632047B2
公开(公告)日：2023-04-18
申请号：US17183994
申请日：2021-02-24
Inventor： Yoshifumi Yoshida , Noboru Kawai , Fumiyasu Utsunomiya
Abstract: A convenient electronic circuit in which a switch is able to be switched through electric power obtained using weak radio waves is provided. An electronic circuit includes a switch which is connected between a power supply configured to output direct current (DC) electric power and a load driven through DC electric power supplied from the power supply and which switches a connection state between the power supply and the load from a non-conduction state to a conduction state; a power conversion circuit which includes a power input terminal to which electric power obtained through radio waves received by an antenna is input and a DC power output terminal configured to output DC electric power and which converts electric power input to the power input terminal into DC electric power and outputs the converted DC electric power from the DC power output terminal; and a control circuit configured to control a connection state of the switch to be in a conduction state when the power conversion circuit outputs DC electric power. The power conversion circuit includes at least a first capacitor, a first diode, a second capacitor, and a second diode.
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公开(公告)号：US11329514B2
公开(公告)日：2022-05-10
申请号：US17186842
申请日：2021-02-26
Applicant: Seiko Holdings Kabushiki Kaisha , ABLIC Inc.
Inventor： Yoshifumi Yoshida , Noboru Kawai , Fumiyasu Utsunomiya
Abstract: A convenient electronic circuit in which a switch is able to be switched through electric power obtained using weak radio waves is provided. An electronic circuit includes: a switch configured to switch a connection state between a power supply configured to output DC electric power and a load; a first antenna capable of receiving radio waves; a second antenna capable of receiving radio waves; a first power conversion circuit configured to convert electric power received by the first antenna into DC electric power and output the converted DC electric power from a first DC power output terminal; a second power conversion circuit configured to convert electric power received by the second antenna into DC electric power and output the converted DC electric power from a second DC power output terminal; and a control circuit configured to switch a connection state of the switch when a difference between electric power input from a first input terminal and electric power input from a second input terminal is larger than a predetermined value.
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公开(公告)号：US11848571B2
公开(公告)日：2023-12-19
申请号：US17187355
申请日：2021-02-26
Applicant: SEIKO HOLDINGS KABUSHIKI KAISHA , ABLIC Inc.
Inventor： Yoshifumi Yoshida , Noboru Kawai , Fumiyasu Utsunomiya
CPC classification number: H02J50/20 , B60R25/406 , G06K19/0708 , H02J9/005
Abstract: A convenient electronic circuit in which a switch is able to be switched through electric power obtained by weak radio waves is provided. An electronic circuit includes: a power supply configured to output direct current (DC) electric power; a switch connected between the power supply and a load driven by DC electric power supplied from the power supply and configured to switch a connection state between the power supply and the load from a non-conduction state to a conduction state; an power input terminal to which electric power obtained by radio waves received by an antenna capable of receiving the radio waves is input; a DC power output terminal configured to output DC electric power, a power conversion circuit configured to convert electric power input to the power input terminal into DC electric power and output the converted electric power from the DC power output terminal; an input terminal connected to the DC power output terminal of the power conversion circuit; an output terminal connected to the switch and configured to control a connection state of the switch; and a control circuit configured to control a connection state of the switch to be in a conduction state when the power conversion circuit outputs DC electric power due to the reception of radio waves by the antenna.
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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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Patent Agency Ranking
公开(公告)号：US12032006B2
公开(公告)日：2024-07-09
申请号：US17973340
申请日：2022-10-25
Applicant: ABLIC Inc.
Inventor： Fumiyasu Utsunomiya , Takakuni Douseki , Ami Tanaka , Yasuhiro Hiraga , Shunta Furumura
IPC: G01R19/165 , G01R19/00 , H02J7/00 , H02J7/34
CPC classification number: G01R19/1659 , G01R19/0084 , H02J7/0063 , H02J7/345
Abstract: Provided is a battery-less sensor circuit including a power generation element, a first switching element, a voltage control circuit, a first storage capacitor, a sensor circuit, and a load. The power generation element is connected to the first storage capacitor via the first switching element. A power supply terminal of the sensor circuit is connected to an input terminal of the first switching element. The voltage control circuit is configured to control a current passing through the first switching element through reception of a voltage of the input terminal of the first switching element. The load is connected to the first storage capacitor and the sensor circuit.
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公开(公告)号：US20230139575A1
公开(公告)日：2023-05-04
申请号：US17975350
申请日：2022-10-27
Applicant: ABLIC Inc.
Inventor： Fumiyasu Utsunomiya , Takakuni Douseki , Hisashi Nishikawa , Fumiya Nishimura , Yuichiro Hirai , Ami Tanaka
Abstract: Provided is a sensor device being a signal processing device, including: a capacitor; a sensor unit configured to wirelessly transmit, in a case in which electric power of a predetermined amount or more is accumulated in the capacitor, a first signal (SG1) through use of the electric power accumulated in the capacitor; a reception unit configured to receive a radio wave transmitted from a power transmission device being an external device; and a transmission antenna functioning as a second transmission unit, the transmission antenna being configured to wirelessly transmit, in response to reception of the radio wave, a response signal (SG3) being a second signal generated based on the received radio wave without using the electric power accumulated in the capacitor.
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公开(公告)号：US10756713B2
公开(公告)日：2020-08-25
申请号：US16526385
申请日：2019-07-30
Applicant: ABLIC Inc.
Inventor： Fumiyasu Utsunomiya
Abstract: A clock signal boost circuit includes a first NMOS transistor having a drain to a power terminal, a source to a first node, and a gate to a first terminal, a second NMOS transistor having a drain to the first node, a source to a GND, and a gate to a second terminal, a third NMOS transistor having a drain to the power terminal, a source to a second node, and a gate to the second terminal, a capacitor between the first node and the second node, a PMOS transistor having a source to the second node, a drain to an output terminal, and a gate to the second terminal, and a fourth NMOS transistor having a drain to the output terminal, a source to the GND, and a gate to the second terminal. The first and the third NMOS transistors are depletion type NMOS transistors.
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公开(公告)号：US20200052679A1
公开(公告)日：2020-02-13
申请号：US16526385
申请日：2019-07-30
Applicant: ABLIC Inc.
Inventor： Fumiyasu Utsunomiya
Abstract: A clock signal boost circuit includes a first NMOS transistor having a drain to a power terminal, a source to a first node, and a gate to a first terminal, a second NMOS transistor having a drain to the first node, a source to a GND, and a gate to a second terminal, a third NMOS transistor having a drain to the power terminal, a source to a second node, and a gate to the second terminal, a capacitor between the first node and the second node, a PMOS transistor having a source to the second node, a drain to an output terminal, and a gate to the second terminal, and a fourth NMOS transistor having a drain to the output terminal, a source to the GND, and a gate to the second terminal. The first and the third NMOS transistors are depletion type NMOS transistors.
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公开(公告)号：US11480464B2
公开(公告)日：2022-10-25
申请号：US17082265
申请日：2020-10-28
Applicant: ABLIC Inc.
Inventor： Fumiyasu Utsunomiya , Takakuni Douseki , Ami Tanaka
IPC: G01J1/44
Abstract: Provided is an optical sensor including: a first photodetector including a first photodiode and having a first wavelength sensitivity characteristic; a first resistor having one end connected to a cathode of the first photodiode, and another end connected to a ground point; a second photodetector including a second photodiode and having a second wavelength sensitivity characteristic; a second resistor having one end connected to a cathode of the second photodiode, and another end connected to the ground point; and an amplifier circuit having a first input terminal connected to the first photodiode, a second input terminal connected to the second photodiode, and an output terminal configured to output a potential based on a potential of the first input terminal and a potential of the second input terminal, and using, as an operating power supply, electric power generated by electromotive force of the first photodetector and the second photodetector.
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