Patents by Inventor Daiju Nakano
Daiju Nakano 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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Patent number: 11527059Abstract: Provided is a reservoir computing system including a reservoir having a random laser for emitting a non-linear optical signal with respect to an input signal. The reservoir computing system also includes a converter for converting the non-linear optical signal into an output signal by applying a conversion function. The conversion function is trained by using a training input signal and a target output signal.Type: GrantFiled: January 28, 2020Date of Patent: December 13, 2022Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Seiji Takeda, Toshiyuki Yamane, Daiju Nakano
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Patent number: 11436480Abstract: Provided is a reservoir computing system that is miniaturized and has a reduced learning cost. The reservoir computing system uses a reservoir that includes a first optical output section that outputs a first optical signal; a first optical waveguide that propagates the first optical signal output by the first optical output section; an optical receiving section that receives the first optical signal from the first optical waveguide; a storage section that stores received optical data corresponding to the first optical signal and output by the optical receiving section; and a feedback section that applies, to the first optical signal, feedback corresponding to the received optical data stored in the storage section.Type: GrantFiled: January 3, 2018Date of Patent: September 6, 2022Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Seiji Takeda, Daiju Nakano, Toshiyuki Yamane, Jean Benoit Heroux
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Patent number: 11424593Abstract: To realize a reservoir computing system with a small size and reduced learning cost, provided is a laser apparatus including a laser; a feedback waveguide that is operable to feed light output from the laser back to the laser; an optical splitter that is provided in a path of the feedback waveguide and is operable to output a portion of light propagated in the feedback waveguide to outside; and a first ring resonator that is operable to be optically connected to the feedback waveguide, as well as a reservoir computing system including this laser apparatus.Type: GrantFiled: October 22, 2019Date of Patent: August 23, 2022Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Daiju Nakano, Seiji Takeda, Toshiyuki Yamane
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Patent number: 11195091Abstract: To realize a reservoir computing system easily implemented as hardware, provided is a reservoir computing system including a reservoir operable to output an inherent output signal in response to an input signal. An input node is operable to supply the reservoir with an input signal corresponding to input data, and an output node is operable to output an output value corresponding to an output signal that is output by the reservoir in response to the input data. An adaptive filter is operable to output output data based on a result obtained by weighting a plurality of the output values output from the output node at a plurality of timings with a plurality of weights. Also provided are a learning method and a computer program product.Type: GrantFiled: November 1, 2017Date of Patent: December 7, 2021Assignee: International Business Machines CorporationInventors: Daiju Nakano, Seiji Takeda, Toshiyuki Yamane
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Patent number: 11188818Abstract: To realize a reservoir computing system easily implemented as hardware, provided is a reservoir computing system including a reservoir operable to output an inherent output signal in response to an input signal. An input node is operable to supply the reservoir with an input signal corresponding to input data, and an output node is operable to output an output value corresponding to an output signal that is output by the reservoir in response to the input data. An adaptive filter is operable to output output data based on a result obtained by weighting a plurality of the output values output from the output node at a plurality of timings with a plurality of weights. Also provided are a learning method and a computer program product.Type: GrantFiled: April 3, 2017Date of Patent: November 30, 2021Assignee: International Business Machines CorporationInventors: Daiju Nakano, Seiji Takeda, Toshiyuki Yamane
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Patent number: 11087861Abstract: A computer implemented method of generating new chemical compounds is provided. The method includes preparing a data-driven substructure feature vector for each of a plurality of chemical compounds for which a chemical or physical property is known. The method further includes preparing a predefined component feature vector, creating a regression model to predict a target value for the chemical or physical property, and performing a search algorithm to identify substructure features that affect the target value for the chemical or physical property. The method further includes generating a candidate structure having the target value for the chemical or physical property, and synthesizing the candidate structure.Type: GrantFiled: March 15, 2018Date of Patent: August 10, 2021Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Seiji Takeda, Daiju Nakano, Koji Masuda, Tetsuro Morimura
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Publication number: 20210232910Abstract: Provided is a reservoir computing system including a reservoir having a random laser for emitting a non-linear optical signal with respect to an input signal. The reservoir computing system also includes a converter for converting the non-linear optical signal into an output signal by applying a conversion function. The conversion function is trained by using a training input signal and a target output signal.Type: ApplicationFiled: January 28, 2020Publication date: July 29, 2021Inventors: Seiji Takeda, Toshiyuki Yamane, Daiju Nakano
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Patent number: 10903689Abstract: Provided are a power transmitting device, a power receiving device, a power supply system, and a power supply method able to supply electric power by emitting electromagnetic waves. A power transmitting device comprises: a calculating unit for calculating the maximum value for the emitted output of electromagnetic waves meeting exposure standards on the basis of a response delay time measured by the communication link between the power transmitting device and a power receiving device; a power transmitting unit for transmitting power via a power supply link with the power receiving device at an output not exceeding the maximum value; an anomaly detecting unit for detecting an anomaly in the power supply link on the basis of communication with the power receiving device via the communication link; and an output control unit for controlling the output on the basis of the detection of an anomaly in the power supply link.Type: GrantFiled: August 3, 2018Date of Patent: January 26, 2021Assignee: International Business Machines CorporationInventors: Daiju Nakano, Nobuyuki Ohba, Kohji Takano
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Patent number: 10622786Abstract: To realize a reservoir computing system with a small size and reduced learning cost, provided is a laser apparatus including a laser; a feedback waveguide that is operable to feed light output from the laser back to the laser; an optical splitter that is provided in a path of the feedback waveguide and is operable to output a portion of light propagated in the feedback waveguide to outside; and a first ring resonator that is operable to be optically connected to the feedback waveguide, as well as a reservoir computing system including this laser apparatus.Type: GrantFiled: April 20, 2017Date of Patent: April 14, 2020Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Daiju Nakano, Seiji Takeda, Toshiyuki Yamane
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Publication number: 20200052463Abstract: To realize a reservoir computing system with a small size and reduced learning cost, provided is a laser apparatus including a laser; a feedback waveguide that is operable to feed light output from the laser back to the laser; an optical splitter that is provided in a path of the feedback waveguide and is operable to output a portion of light propagated in the feedback waveguide to outside; and a first ring resonator that is operable to be optically connected to the feedback waveguide, as well as a reservoir computing system including this laser apparatus.Type: ApplicationFiled: October 22, 2019Publication date: February 13, 2020Inventors: Daiju Nakano, Seiji Takeda, Toshiyuki Yamane
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Publication number: 20190286791Abstract: A computer implemented method of generating new chemical compounds is provided. The method includes preparing a data-driven substructure feature vector for each of a plurality of chemical compounds for which a chemical or physical property is known. The method further includes preparing a predefined component feature vector, creating a regression model to predict a target value for the chemical or physical property, and performing a search algorithm to identify substructure features that affect the target value for the chemical or physical property. The method further includes generating a candidate structure having the target value for the chemical or physical property, and synthesizing the candidate structure.Type: ApplicationFiled: March 15, 2018Publication date: September 19, 2019Inventors: Seiji Takeda, Daiju Nakano, Koji Masuda, Tetsuro Morimura
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Publication number: 20190205742Abstract: Provided is a reservoir computing system that is miniaturized and has a reduced learning cost. The reservoir computing system uses a reservoir that includes a first optical output section that outputs a first optical signal; a first optical waveguide that propagates the first optical signal output by the first optical output section; an optical receiving section that receives the first optical signal from the first optical waveguide; a storage section that stores received optical data corresponding to the first optical signal and output by the optical receiving section; and a feedback section that applies, to the first optical signal, feedback corresponding to the received optical data stored in the storage section.Type: ApplicationFiled: January 3, 2018Publication date: July 4, 2019Inventors: Seiji Takeda, Daiju Nakano, Toshiyuki Yamane, Jean Benoit Heroux
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Publication number: 20180375381Abstract: Provided are a power transmitting device, a power receiving device, a power supply system, and a power supply method able to supply electric power by emitting electromagnetic waves. A power transmitting device comprises: a calculating unit for calculating the maximum value for the emitted output of electromagnetic waves meeting exposure standards on the basis of a response delay time measured by the communication link between the power transmitting device and a power receiving device; a power transmitting unit for transmitting power via a power supply link with the power receiving device at an output not exceeding the maximum value; an anomaly detecting unit for detecting an anomaly in the power supply link on the basis of communication with the power receiving device via the communication link; and an output control unit for controlling the output on the basis of the detection of an anomaly in the power supply link.Type: ApplicationFiled: August 3, 2018Publication date: December 27, 2018Inventors: Daiju Nakano, Nobuyuki Ohba, Kohji Takano
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Publication number: 20180309266Abstract: To realize a reservoir computing system with a small size and reduced learning cost, provided is a laser apparatus including a laser; a feedback waveguide that is operable to feed light output from the laser back to the laser; an optical splitter that is provided in a path of the feedback waveguide and is operable to output a portion of light propagated in the feedback waveguide to outside; and a first ring resonator that is operable to be optically connected to the feedback waveguide, as well as a reservoir computing system including this laser apparatus.Type: ApplicationFiled: April 20, 2017Publication date: October 25, 2018Inventors: Daiju Nakano, Seiji Takeda, Toshiyuki Yamane
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Publication number: 20180285728Abstract: To realize a reservoir computing system easily implemented as hardware, provided is a reservoir computing system including a reservoir operable to output an inherent output signal in response to an input signal. An input node is operable to supply the reservoir with an input signal corresponding to input data, and an output node is operable to output an output value corresponding to an output signal that is output by the reservoir in response to the input data. An adaptive filter is operable to output output data based on a result obtained by weighting a plurality of the output values output from the output node at a plurality of timings with a plurality of weights. Also provided are a learning method and a computer program product.Type: ApplicationFiled: April 3, 2017Publication date: October 4, 2018Inventors: Daiju Nakano, Seiji Takeda, Toshiyuki Yamane
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Publication number: 20180285729Abstract: To realize a reservoir computing system easily implemented as hardware, provided is a reservoir computing system including a reservoir operable to output an inherent output signal in response to an input signal. An input node is operable to supply the reservoir with an input signal corresponding to input data, and an output node is operable to output an output value corresponding to an output signal that is output by the reservoir in response to the input data. An adaptive filter is operable to output output data based on a result obtained by weighting a plurality of the output values output from the output node at a plurality of timings with a plurality of weights. Also provided are a learning method and a computer program product.Type: ApplicationFiled: November 1, 2017Publication date: October 4, 2018Inventors: Daiju Nakano, Seiji Takeda, Toshiyuki Yamane
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Patent number: 10082974Abstract: Embodiments include providing content requested by a user via an access point capable of wireless communication. Aspects include receiving the content provided by the management server and storing the content provided by the management server into a volatile memory provided in the wireless communication apparatus. Aspects also include storing difference data into a nonvolatile memory if it is requested to change the content stored in the volatile memory and monitoring a state of communication connection with the access point and whether or not a packet giving an instruction to hold the content has been received. Aspects further include deleting the content stored in the volatile memory if communication with the access point is disconnected or if the packet is unreceived.Type: GrantFiled: October 28, 2015Date of Patent: September 25, 2018Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Yasunao Katayama, Daiju Nakano, Kohji Takano
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Patent number: 10069347Abstract: Provided are a power transmitting device, a power receiving device, a power supply system, and a power supply method able to supply electric power by emitting electromagnetic waves. A power transmitting device comprises: a calculating unit for calculating the maximum value for the emitted output of electromagnetic waves meeting exposure standards on the basis of a response delay time measured by the communication link between the power transmitting device and a power receiving device; a power transmitting unit for transmitting power via a power supply link with the power receiving device at an output not exceeding the maximum value; an anomaly detecting unit for detecting an anomaly in the power supply link on the basis of communication with the power receiving device via the communication link; and an output control unit for controlling the output on the basis of the detection of an anomaly in the power supply link.Type: GrantFiled: April 21, 2017Date of Patent: September 4, 2018Assignee: International Business Machines CorporationInventors: Daiju Nakano, Nobuyuki Ohba, Kohji Takano
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Patent number: 10020689Abstract: Provided are a power transmitting device, a power receiving device, a power supply system, and a power supply method able to supply electric power by emitting electromagnetic waves. A power transmitting device comprises: a calculating unit for calculating the maximum value for the emitted output of electromagnetic waves meeting exposure standards on the basis of a response delay time measured by the communication link between the power transmitting device and a power receiving device; a power transmitting unit for transmitting power via a power supply link with the power receiving device at an output not exceeding the maximum value; an anomaly detecting unit for detecting an anomaly in the power supply link on the basis of communication with the power receiving device via the communication link; and an output control unit for controlling the output on the basis of the detection of an anomaly in the power supply link.Type: GrantFiled: August 22, 2017Date of Patent: July 10, 2018Assignee: International Business Machines CorporationInventors: Daiju Nakano, Nobuyuki Ohba, Kohji Takano
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Patent number: 10014727Abstract: Provided are a power transmitting device, a power receiving device, a power supply system, and a power supply method able to supply electric power by emitting electromagnetic waves. A power transmitting device comprises: a calculating unit for calculating the maximum value for the emitted output of electromagnetic waves meeting exposure standards on the basis of a response delay time measured by the communication link between the power transmitting device and a power receiving device; a power transmitting unit for transmitting power via a power supply link with the power receiving device at an output not exceeding the maximum value; an anomaly detecting unit for detecting an anomaly in the power supply link on the basis of communication with the power receiving device via the communication link; and an output control unit for controlling the output on the basis of the detection of an anomaly in the power supply link.Type: GrantFiled: August 22, 2017Date of Patent: July 3, 2018Assignee: International Business Machines CorporationInventors: Daiju Nakano, Nobuyuki Ohba, Kohji Takano