Patents by Inventor Toshiyuki Yamane
Toshiyuki Yamane 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: 11720801Abstract: A technique for performing a function by utilizing chemical reactions is disclosed. In the technique, solution including an input chemical species having a concentration is provided. A chemical reaction network that includes at least a sequence of chemical reactions starting with the input chemical species to generate a plurality of output chemical species is also prepared. The solution is exposed to the chemical reaction network to present a pattern formed by the plurality of output chemical species depending on the concentration of the input chemical species.Type: GrantFiled: August 25, 2020Date of Patent: August 8, 2023Assignee: International Business Machines CorporationInventors: Eiji Nakamura, Toshiyuki Yamane, Koji Masuda
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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: 11511540Abstract: A liquid discharging apparatus includes a liquid discharging head having nozzles, a tank which stores liquid, and a controller. The controller causes the liquid discharging head to perform a discharging operation for discharging the liquid from the nozzles based on a discharging data. The discharging data includes unit discharging data indicating whether the liquid is to be discharged from the nozzles within a predetermined time period. In the discharging operation, a) if a discharge amount based on the unit discharging data is less than a threshold value, the liquid discharging head performs a first discharging operation during the predetermined time period, and b) if the discharge amount based on the unit discharging data is equal to or more than the threshold value, the liquid discharging head performs a second discharging operation during another time period longer than the predetermined time period.Type: GrantFiled: March 26, 2021Date of Patent: November 29, 2022Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yasuhiro Nakano, Toshiyuki Yamane, Toshio Sugiura, Jiro Yamamoto
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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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Publication number: 20220104337Abstract: A cathode for a plasma gun includes a main body having a first end and a second end, wherein the first end has a protrusion. A method of using the cathode includes mounting the cathode inside a plasma gun and generating an arc discharge via the protrusion.Type: ApplicationFiled: November 27, 2019Publication date: March 31, 2022Applicant: OERLIKON METCO (US) INC.Inventors: Junya KITAMURA, Ronald J. MOLZ, Toshiyuki YAMANE
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Publication number: 20220064700Abstract: A technique for performing a function by utilizing chemical reactions is disclosed. In the technique, solution including an input chemical species having a concentration is provided. A chemical reaction network that includes at least a sequence of chemical reactions starting with the input chemical species to generate a plurality of output chemical species is also prepared. The solution is exposed to the chemical reaction network to present a pattern formed by the plurality of output chemical species depending on the concentration of the input chemical species.Type: ApplicationFiled: August 25, 2020Publication date: March 3, 2022Inventors: Eiji Nakamura, Toshiyuki Yamane, Koji Masuda
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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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Publication number: 20210300034Abstract: A liquid discharging apparatus includes a liquid discharging head having nozzles, a tank which stores liquid, and a controller. The controller causes the liquid discharging head to perform a discharging operation for discharging the liquid from the nozzles based on a discharging data. The discharging data includes unit discharging data indicating whether the liquid is to be discharged from the nozzles within a predetermined time period. In the discharging operation, a) if a discharge amount based on the unit discharging data is less than a threshold value, the liquid discharging head performs a first discharging operation during the predetermined time period, and b) if the discharge amount based on the unit discharging data is equal to or more than the threshold value, the liquid discharging head performs a second discharging operation during another time period longer than the predetermined time period.Type: ApplicationFiled: March 26, 2021Publication date: September 30, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yasuhiro NAKANO, Toshiyuki YAMANE, Toshio SUGIURA, Jiro YAMAMOTO
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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: 10928586Abstract: A photonic neural component includes optical transmitters, optical receivers, inter-node waveguides formed on a board, transmitting waveguides configured to receive optical signals emitted from the optical transmitters and transmit the received optical signals to the inter-node waveguides, mirrors to partially reflect optical signals propagating on the inter-node waveguides, receiving waveguides configured to receive reflected optical signals produced by the mirrors and transmit the reflected optical signals to the optical receivers, and filters configured to apply weights to the reflected optical signals. The transmitting waveguides and receiving waveguides are formed on the board such that one of the transmitting waveguides and one of the receiving waveguides crosses one of the inter-node waveguides with a core of one of the crossing waveguides passing through a core or clad of the other.Type: GrantFiled: October 23, 2019Date of Patent: February 23, 2021Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Jean Benoit Heroux, Seiji Takeda, Toshiyuki Yamane
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Patent number: 10893117Abstract: A system for enhancing speed and power operation of a sensor network is provided. The system includes an edge section disposed at an edge location and including a reservoir layer placed at the edge location. The reservoir layer has a set of reservoir nodes for performing edge computing by compressing time-series data by reducing a dimensionality of the time-series data using a random projection method. The compression of the time-series data reduces spatial redundancy and preserves a structure of the time-series data. The system further includes a datacenter section disposed at a datacenter location and including an output layer placed at the datacenter location. The output layer has a set of output nodes connected to the set of reservoir nodes for reconstructing the time-series data from the compressed time-series data, thereby enhancing speed and power operation of the sensor network.Type: GrantFiled: November 27, 2018Date of Patent: January 12, 2021Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventor: Toshiyuki Yamane
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Publication number: 20200169618Abstract: A system for enhancing speed and power operation of a sensor network is provided. The system includes an edge section disposed at an edge location and including a reservoir layer placed at the edge location. The reservoir layer has a set of reservoir nodes for performing edge computing by compressing time-series data by reducing a dimensionality of the time-series data using a random projection method. The compression of the time-series data reduces spatial redundancy and preserves a structure of the time-series data. The system further includes a datacenter section disposed at a datacenter location and including an output layer placed at the datacenter location. The output layer has a set of output nodes connected to the set of reservoir nodes for reconstructing the time-series data from the compressed time-series data, thereby enhancing speed and power operation of the sensor network.Type: ApplicationFiled: November 27, 2018Publication date: May 28, 2020Inventor: Toshiyuki Yamane
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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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Patent number: 10585240Abstract: A photonic neural component including optical transmitters, optical receivers, inter-node waveguides formed on a board, multiplexers configured to multiplex input optical signals onto the inter-node waveguides, transmitting waveguides configured to receive optical signals emitted from the optical transmitters and transmit the received optical signals to the inter-node waveguides via the multiplexers, mirrors to partially reflect optical signals propagating on the inter-node waveguides, receiving waveguides configured to receive reflected optical signals produced by the mirrors and transmit the reflected optical signals to the optical receivers, and filters configured to apply weights to the reflected optical signals. The transmitting waveguides and receiving waveguides are formed on the board such that one of the transmitting waveguides and one of the receiving waveguides crosses one of the inter-node waveguides with a core of one of the crossing waveguides passing through a core or clad of the other.Type: GrantFiled: August 20, 2019Date of Patent: March 10, 2020Assignee: International Business Machines CorporationInventors: Jean Benoit Heroux, Seiji Takeda, Toshiyuki Yamane
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Publication number: 20200057194Abstract: A photonic neural component includes optical transmitters, optical receivers, inter-node waveguides formed on a board, transmitting waveguides configured to receive optical signals emitted from the optical transmitters and transmit the received optical signals to the inter-node waveguides, mirrors to partially reflect optical signals propagating on the inter-node waveguides, receiving waveguides configured to receive reflected optical signals produced by the mirrors and transmit the reflected optical signals to the optical receivers, and filters configured to apply weights to the reflected optical signals. The transmitting waveguides and receiving waveguides are formed on the board such that one of the transmitting waveguides and one of the receiving waveguides crosses one of the inter-node waveguides with a core of one of the crossing waveguides passing through a core or clad of the other.Type: ApplicationFiled: October 23, 2019Publication date: February 20, 2020Inventors: Jean Benoit Heroux, 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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Patent number: 10514498Abstract: A photonic neural component includes optical transmitters, optical receivers, inter-node waveguides formed on a board, transmitting waveguides configured to receive optical signals emitted from the optical transmitters and transmit the received optical signals to the inter-node waveguides, mirrors to partially reflect optical signals propagating on the inter-node waveguides, receiving waveguides configured to receive reflected optical signals produced by the mirrors and transmit the reflected optical signals to the optical receivers, and filters configured to apply weights to the reflected optical signals. The transmitting waveguides and receiving waveguides are formed on the board such that one of the transmitting waveguides and one of the receiving waveguides crosses one of the inter-node waveguides with a core of one of the crossing waveguides passing through a core or clad of the other.Type: GrantFiled: April 10, 2019Date of Patent: December 24, 2019Assignee: International Business Machines CorporationInventors: Jean Benoit Heroux, Seiji Takeda, Toshiyuki Yamane
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Publication number: 20190369330Abstract: A photonic neural component including optical transmitters, optical receivers, inter-node waveguides formed on a board, multiplexers configured to multiplex input optical signals onto the inter-node waveguides, transmitting waveguides configured to receive optical signals emitted from the optical transmitters and transmit the received optical signals to the inter-node waveguides via the multiplexers, mirrors to partially reflect optical signals propagating on the inter-node waveguides, receiving waveguides configured to receive reflected optical signals produced by the mirrors and transmit the reflected optical signals to the optical receivers, and filters configured to apply weights to the reflected optical signals. The transmitting waveguides and receiving waveguides are formed on the board such that one of the transmitting waveguides and one of the receiving waveguides crosses one of the inter-node waveguides with a core of one of the crossing waveguides passing through a core or clad of the other.Type: ApplicationFiled: August 20, 2019Publication date: December 5, 2019Inventors: Jean Benoit Heroux, Seiji Takeda, Toshiyuki Yamane