Patents by Inventor Yoko Kosaka
Yoko Kosaka 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: 10714937Abstract: A voltage reactive power control device includes a bus voltage fluctuation extracting unit that extracts a bus voltage fluctuation from a voltage of a secondary-side bus, an RE component extracting unit that extracts a fluctuation component due to renewable energy power generation from the bus voltage fluctuation, a creating unit that creates a reactive power command value for suppressing the fluctuation component based on the bus voltage fluctuation component due to the renewable energy power generation extracted by the RE component extracting unit, and a control unit that executes the reactive power control on a battery system based on the reactive power command value. The RE component extracting unit extracts the fluctuation component due to the renewable energy power generation by eliminating the fluctuation components other than the fluctuation component due to the renewable energy power generation from the bus voltage fluctuation.Type: GrantFiled: March 4, 2016Date of Patent: July 14, 2020Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Yoshio Ebata, Takenori Kobayashi, Yoko Kosaka, Tsutomu Tanno, Mami Mizutani, Masako Kiuchi
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Publication number: 20200044451Abstract: A voltage reactive power control device includes a bus voltage fluctuation extracting unit that extracts a bus voltage fluctuation from a voltage of a secondary-side bus, an RE component extracting unit that extracts a fluctuation component due to renewable energy power generation from the bus voltage fluctuation, a creating unit that creates a reactive power command value for suppressing the fluctuation component based on the bus voltage fluctuation component due to the renewable energy power generation extracted by the RE component extracting unit, and a control unit that executes the reactive power control on a battery system based on the reactive power command value. The RE component extracting unit extracts the fluctuation component due to the renewable energy power generation by eliminating the fluctuation components other than the fluctuation component due to the renewable energy power generation from the bus voltage fluctuation.Type: ApplicationFiled: March 4, 2016Publication date: February 6, 2020Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Yoshio EBATA, Takenori KOBAYASHI, Yoko KOSAKA, Tsutomu TANNO, Mami MIZUTANI, Masako KIUCHI
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Patent number: 10175304Abstract: Synchronous measuring terminals 5 synchronously measure phasor quantity D101 of a voltage/current at respective measurement points 1 and 2. A data-set creating block 91 of a short-circuit capacity monitoring device 7 creates, for each measurement cycle ?t, a data set D102 containing n pieces of data based on the phasor quantities D101 of voltage and current. A phase correcting block 92 performs a phase correction on the phasor quantity using the data set D102 to create a data set D102?, and a backward impedance estimating block 93 estimates a backward impedance D103 using the data set D102?.Type: GrantFiled: April 5, 2013Date of Patent: January 8, 2019Assignee: Kabushiki Kaisha ToshibaInventors: Yoko Kosaka, Takenori Kobayashi, Yoshiki Takabayashi, Kazuya Omata, Verma Suresh Chand, Yoshihiko Wazawa, Yoshiki Nakachi
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Patent number: 9584054Abstract: A wind farm output control device includes a potential estimator estimating a maximum electrical energy outputtable by each wind power generation device, a control amount determiner determining, based on the estimated maximum power amount, a control amount for an effective power of each wind power generation device and/or a reactive power thereof in a wind farm, and a control amount distributor distributing the control amount based on an available power generation amount of each wind power generation device. The potential estimator estimates the maximum power amount based on a pitch angle of blades, an angular speed deviation of a power generator, and a conversion loss of the wind power generation device. Within the range of the estimated maximum power amount, the control amount for the output by the wind farm is distributed within a range where each wind power generation device is outputtable according to the wind condition.Type: GrantFiled: October 10, 2013Date of Patent: February 28, 2017Assignee: Kabushiki Kaisha ToshibaInventors: Yoko Kosaka, Kenichi Tanomura, Katsutoshi Hiromasa, Yoichi Tone, Toshimasa Yamada, Kiyoshi Kusunoki
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Patent number: 9518559Abstract: An output by a wind farm including multiple wind power generation devices is controlled by an output control device. To control the output, (1) a potential estimator estimates an outputtable maximum power amount by each wind power generation device, (2) a control amount determiner determines a control amount of the whole wind farm based on the maximum power amount estimated by the potential estimator, (3) a control timing adjuster adjusts a control timing of the control amount of the whole wind farm, (4) a control amount distributer distributes the control amount having undergone the control timing adjustment based on an available power generation amount of each wind power generation device.Type: GrantFiled: April 2, 2015Date of Patent: December 13, 2016Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Katsutoshi Hiromasa, Yoko Kosaka, Kenichi Tanomura, Toshimasa Yamada, Yoichi Tone
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Publication number: 20150285220Abstract: An output by a wind farm including multiple wind power generation devices is controlled by an output control device. To control the output, (1) a potential estimator estimates an outputtable maximum power amount by each wind power generation device, (2) a control amount determiner determines a control amount of the whole wind farm based on the maximum power amount estimated by the potential estimator, (3) a control timing adjuster adjusts a control timing of the control amount of the whole wind farm, (4) a control amount distributer distributes the control amount having undergone the control timing adjustment based on an available power generation amount of each wind power generation device.Type: ApplicationFiled: April 2, 2015Publication date: October 8, 2015Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Katsutoshi HIROMASA, Yoko KOSAKA, Kenichi TANOMURA, Toshimasa YAMADA, Yoichi TONE
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Publication number: 20150120228Abstract: Synchronous measuring terminals 5 synchronously measure phasor quantity D101 of a voltage/current at respective measurement points 1 and 2. A data-set creating block 91 of a short-circuit capacity monitoring device 7 creates, for each measurement cycle ?t, a data set D102 containing n pieces of data based on the phasor quantities D101 of voltage and current. A phase correcting block 92 performs a phase correction on the phasor quantity using the data set D102 to create a data set D102?, and a backward impedance estimating block 93 estimates a backward impedance D103 using the data set D102?.Type: ApplicationFiled: April 5, 2013Publication date: April 30, 2015Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yoko Kosaka, Takenori Kobayashi, Yoshiki Takabayashi, Kazuya Omata, Verma Suresh Chand, Yoshihiko Wazawa, Yoshiki Nakachi
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Publication number: 20150120077Abstract: An energy management system of an embodiment includes first and second registration processors, first and second receivers, an aggregation processor, first and second transmitters, and a proration processor. The first registration processor registers a first energy management system as a host system. The second registration processor registers a second energy management system as a slave system. The first receiver receives an amount of an energy supply and demand and an adjustable amount of an energy supply and demand. The aggregation processor aggregates the received amount of an energy supply and demand and the received adjustable amount of an energy supply and demand. The first transmitter transmits aggregated results. The second receiver receives an adjustment amount of an energy supply and demand. The proration processor prorates the received adjustment amount of an energy supply and demand. The second transmitter transmits individual adjustment amounts of a power supply and demand.Type: ApplicationFiled: December 29, 2014Publication date: April 30, 2015Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Toshimitsu KUMAZAWA, Koji TOBA, Genki KIYA, Yasuyuki MIYAZAKI, Misao KIMURA, Yoko KOSAKA, Yoshihito KINOSHITA, Yasuhiro TAGUCHI
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Patent number: 8706311Abstract: An electric power planning apparatus is provided. The apparatus has an initial plan creating section, a generation amount probability density distribution creating section, an economic load dispatch calculating section, and a display section. The initial plan creating section creates an initial plan based on a demand predicted value, a predicted value of a natural energy electric power source power generation output amount, and electric power source equipment data. The generation amount probability density distribution creating section creates a probability density distribution using fluctuation bands of the demand and of the natural energy electric power source power generation output amount. The economic load dispatch calculating section calculates an output allocation based on the initial plan and the probability density distribution to create a prediction distribution of a power generation output of the controllable electric power source. The display section displays the prediction distribution.Type: GrantFiled: July 22, 2011Date of Patent: April 22, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Yoko Kosaka, Takenori Kobayashi, Yoshiki Murakami, Hideo Kusano
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Publication number: 20140103654Abstract: A wind farm output control device includes a potential estimator estimating a maximum electrical energy outputtable, by each wind power generation device, a control amount determiner determining, based on the estimated maximum power amount, a control amount for an effective power of each wind power generation device and/or a reactive power thereof in a wind farm, and a control amount distributor distributing the control amount based on an available power generation amount of each wind power generation device. The potential estimator estimates the maximum power amount based on a pitch angle of blades, an angular speed deviation of a power generator, and a conversion loss of the wind power generation device. Within the range of the estimated maximum power amount, the control amount for the output by the wind farm is distributed within a range where each wind power generation device is outputtable according to the wind condition.Type: ApplicationFiled: October 10, 2013Publication date: April 17, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Yoko KOSAKA, Kenichi Tanomura, Katsutoshi Hiromasa, Yoichi Tone, Toshimasa Yamada, Kiyoshi Kusunoki
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Publication number: 20130013233Abstract: An electric-power-generation level predicting apparatus 1 includes a memory unit 20 that stores, as past data relating to a past electric power generation level of an electric power generator, past data containing information at multiple time points in each day, and an predicted-value calculating unit 13 that calculates, as time-series data containing an occurrence probability, an predicted value of the past data relating to an electric power generation level of the electric power generator based on a statistical correlation between different times in the past data or a statistical correlation between locations of the different electric power generators. The predicted-value calculating unit 13 includes a variance-covariance-matrix generator unit 131 that generates a variance-covariance matrix based on the past data, and a random-number generator unit 132 that generates a random number following the probability distribution based on the variance-covariance matrix.Type: ApplicationFiled: March 18, 2011Publication date: January 10, 2013Inventors: Yoshiki Murakami, Takenori Kobayashi, Katsutoshi Hiromasa, Yoko Kosaka, Hideo Kusano, Kenji Watanabe, Hideki Hayashi
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Publication number: 20120109393Abstract: An electric power planning apparatus is provided. The apparatus has an initial plan creating section, a generation amount probability density distribution creating section, an economic load dispatch calculating section, and a display section. The initial plan creating section creates an initial plan based on a demand predicted value, a predicted value of a natural energy electric power source power generation output amount, and electric power source equipment data. The generation amount probability density distribution creating section creates a probability density distribution using fluctuation bands of the demand and of the natural energy electric power source power generation output amount. The economic load dispatch calculating section calculates an output allocation based on the initial plan and the probability density distribution to create a prediction distribution of a power generation output of the controllable electric power source. The display section displays the prediction distribution.Type: ApplicationFiled: July 22, 2011Publication date: May 3, 2012Inventors: Yoko Kosaka, Takenori Kobayashi, Yoshiki Murakami, Hideo Kusano
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Publication number: 20050202583Abstract: The invention provides a composition including a metal and a photosensitive component, wherein a film pattern formed by subjecting the composition to an exposure to light and a development has a water-repellent property and becomes an electrically resistant film upon baking.Type: ApplicationFiled: March 14, 2005Publication date: September 15, 2005Applicant: CANON KABUSHIKI KAISHAInventors: Yasuko Tomida, Yoko Kosaka, Masahiro Terada, Taku Shimoda
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Patent number: 6777868Abstract: The present invention discloses a film comprising at least a compound of germanium as a film structure capable of suppressing influence of electrification. It also discloses an electron beam system, particularly an image forming system, using a member having the film comprising at least a compound of germanium. It further discloses a manufacturing method of the image forming system.Type: GrantFiled: June 30, 1999Date of Patent: August 17, 2004Assignee: Canon Kabushiki KaishaInventors: Yoko Kosaka, Noriaki Ohguri, Yoshimasa Okamura
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Patent number: 6657368Abstract: There are provided an electron beam device which has an atmospheric pressure-resistant member such as a spacer interposed between an electron source and a member to be irradiated with electrons, and can suppress charge on the member, a charging-suppressing member, and its producing method. An electron beam device having an electron source for emitting electrons, a member to be irradiated with the electrons, and a first member interposed between the electron source and the member to be irradiated is characterized in that the surface of the first member has a three-dimensional shape, and projecting portions of the three-dimensional shape form a network shape.Type: GrantFiled: November 28, 2000Date of Patent: December 2, 2003Assignee: Canon Kabushiki KaishaInventors: Yoko Kosaka, Masahiro Fushimi, Hideaki Mitsutake
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Patent number: 5868960Abstract: A mesomorphic compound of the formula (I) according to Claim 1 characterized by having at least two ether groups between alkylene groups in a specific alkoxy perfluoroalkyl terminal group is suitable as a component for a liquid crystal composition providing improved response characteristics and a high contrast. A liquid crystal device is constituted by disposing the liquid crystal composition between a pair of substrates. The liquid crystal device is used as a display panel constituting a liquid crystal apparatus providing good display characteristics.Type: GrantFiled: January 9, 1997Date of Patent: February 9, 1999Assignee: Canon Kabushiki KaishaInventors: Yoko Kosaka, Takao Takiguchi, Takashi Iwaki, Takeshi Togano, Shinichi Nakamura
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Patent number: 5849217Abstract: An optically active compound represented by the formula R.sub.1 --A.sub.1 --A.sub.2 --X.sub.1 --A.sub.3 --(CH.sub.2).sub.p --L--A.sub.4 --R.sub.2, in which R.sub.1 is F, CN or straight chain, branched or cyclic alkyl and R.sub.2 is H, F, CH or straight chain or branched alkyl; A.sub.3 is 1,4-phenylene, pyridine-2,5-diyl, pyrimidine-2,5-diyl, pyrazine-2,5-diyl, pyridazine-3,6-diyl, 1,4-cyclohexylene, 1,3-dioxane-2,5-diyl, 1,3-ditiane-2,5-diyl, thiophene-2,5-diyl, thiazole-2,5-diyl, thiaziazole-2,5-diyl, benzoxazole-2,5-diyl, benzoxazole-2,6-diyl, benzothiazole-2,5-diyl, benzothiazole-2,6-diyl, benzofuran-2,5-diyl, benzofuran-2,6-diyl, quinoxaline-2,6-diyl, quinoline-2,6-diyl, 2,6-naphthylene, indane-2,5-diyl, 2-alkylindane-2,5-diyl, indanone-2,6-diyl, 2-alkylindane-2,6-diyl, coumarane-2,5-diyl and 2-alkylcoumarane-2,5-diyl; A.sub.1, A.sub.2 and A.sub.4 are single bond or A.sub.3 ; X.sub.1 ' is a single bond, --COO--, --OCO--, --CH.sub.2 O--, --OCH.sub.2 --, --CH.sub.2 CH.sub.2 --, --CH.dbd.CH-- or --C.tbd.Type: GrantFiled: November 13, 1996Date of Patent: December 15, 1998Assignee: Canon Kabushiki KaishaInventors: Shinichi Nakamura, Takao Takiguchi, Takashi Iwaki, Takeshi Togano, Yoko Kosaka
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Patent number: 5695684Abstract: A mesomorphic compound represented by a formula (I) containing a quinoline-2,6-diyl skeleton is suitable as a component for a liquid crystal composition providing improved response characteristics and a high contrast. A liquid crystal device is constituted by disposing the liquid crystal composition between a pair of electrode plates. The liquid crystal device may preferably be used as a display panel constituting a liquid crystal apparatus providing good display characteristics.Type: GrantFiled: March 27, 1995Date of Patent: December 9, 1997Assignee: Canon Kabushiki KaishaInventors: Yoko Kosaka, Takao Takiguchi, Takashi Iwaki, Takeshi Togano, Shinichi Nakamura
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Patent number: 5653913Abstract: A mesomorphic compound of the formula (I) according to claim 1 characterized by having at least one CF.sub.2 group between CH.sub.2 groups in a specific alkoxy alkyl terminal group is suitable as a component for a liquid crystal composition providing improved response characteristics and a high contrast. A liquid crystal device is constituted by disposing the liquid crystal composition between a pair of substrates. The liquid crystal device is used as a display panel constituting a liquid crystal apparatus providing good display characteristics.Type: GrantFiled: April 5, 1996Date of Patent: August 5, 1997Assignee: Canon Kabushiki KaishaiInventors: Shinichi Nakamura, Takao Takiguchi, Takashi Iwaki, Takeshi Togano, Yoko Kosaka
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Patent number: 5624600Abstract: An optically active compound represented by a formula (I) characterized by containing an oxazolidinone-3,5-diyl skeleton directly connected to cyclic groups in 3 and 5 positions is suitable as a component for a liquid crystal composition providing improved response characteristics and a high contrast. A liquid crystal device is constituted by disposing the liquid crystal composition between a pair of electrode plates. The liquid crystal device may preferably be used as a display panel constituting a liquid crystal apparatus providing good display characteristics.Type: GrantFiled: May 16, 1995Date of Patent: April 29, 1997Assignee: Canon Kabushiki KaishaInventors: Takao Takiguchi, Takashi Iwaki, Takeshi Togano, Yoko Kosaka, Shinichi Nakamura