Patents by Inventor Tsutomu Kawamura
Tsutomu Kawamura 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).
-
Publication number: 20220376522Abstract: This regional energy management device calculates the power interchange between consumers, on the basis of: storage battery level distribution indicating the relationship between storage battery levels and the position of storage batteries in a region at each time; excess or shortages of power for each consumer at each time, if a consumer has implemented a power supply equipment operation plan for fulfilling a consumer target index for that consumer; and an overall regional target index.Type: ApplicationFiled: July 22, 2020Publication date: November 24, 2022Applicant: Hitachi, Ltd.Inventors: Tsutomu KAWAMURA, Ryousuke NAKAMURA, Tetsushi ONO, Masatoshi KUMAGAI
-
Patent number: 11456619Abstract: Included are an energy management apparatus that manages at least one or more management target that consumes energy; and a user terminal that transmits and receives information to and from the energy management apparatus via a network. The energy management apparatus includes an energy management controller that prepares a question regarding a behavior of a user who uses the at least one or more management target, and transmits it to the user terminal. The user terminal includes a user terminal controller that transmits a question answer regarding the received question to the energy management controller when receiving the question transmitted from the energy management controller. The energy management controller predicts an energy consumption amount of the at least one or more management target based on the received question answer when receiving the question answer transmitted from the user terminal controller.Type: GrantFiled: March 11, 2019Date of Patent: September 27, 2022Assignee: Hitachi, Ltd.Inventors: Tsutomu Kawamura, Masatoshi Kumagai, Hirotaka Takahashi, Ryousuke Nakamura
-
Patent number: 11143426Abstract: The purpose of the present invention is to minimize impact on the comfort of people in a room and to achieve energy conservation in heat-source functions in an energy network comprising a plurality of heat-source functions that generate cold water and/or warm water, and a plurality of air-conditioning functions that obtain an air-conditioning effect by consuming the cold water and/or warm water generated by the heat-source functions. Disclosed is an energy network comprising a plurality of heat-source functions that generate thermal energy, and a plurality of air-conditioning functions that obtain an air-conditioning effect by consuming the thermal energy generated by the heat-source functions, wherein the energy network comprises: a first control function that selectively starts or stops the heat-source functions; and a second control function that controls the output of the air-conditioning functions.Type: GrantFiled: June 20, 2014Date of Patent: October 12, 2021Assignee: Hitachi, Ltd.Inventors: Hirotaka Takahashi, Tsutomu Kawamura
-
Publication number: 20210028647Abstract: Included are an energy management apparatus that manages at least one or more management target that consumes energy; and a user terminal that transmits and receives information to and from the energy management apparatus via a network. The energy management apparatus includes an energy management controller that prepares a question regarding a behavior of a user who uses the at least one or more management target, and transmits it to the user terminal. The user terminal includes a user terminal controller that transmits a question answer regarding the received question to the energy management controller when receiving the question transmitted from the energy management controller. The energy management controller predicts an energy consumption amount of the at least one or more management target based on the received question answer when receiving the question answer transmitted from the user terminal controller.Type: ApplicationFiled: March 11, 2019Publication date: January 28, 2021Inventors: Tsutomu KAWAMURA, Masatoshi KUMAGAI, Hirotaka TAKAHASHI, Ryousuke NAKAMURA
-
Publication number: 20200387847Abstract: An operation plan generation device in an energy system that supplies energy to a consumer is provided with: a data generation unit that generates, on the basis of a plurality of operation conditions for the energy system, a plurality of operation plans with respect to the respective operation conditions, and calculates KPIs corresponding to the respective operation plans; a machine learning unit that learns characteristics of the energy system on the basis of the operation plans and the KPIs; and an operation plan generation unit that generates an operation plan on the basis of the learned characteristics of the energy system.Type: ApplicationFiled: November 26, 2018Publication date: December 10, 2020Inventors: Tsutomu KAWAMURA, Masatoshi KUMAGAI, Hirotaka TAKAHASHI
-
Patent number: 10808947Abstract: A heat source system managing device includes: a predicted heat demand upper limit calculating unit configured to calculate a predicted heat demand upper limit by adding a prediction error to a predicted heat demand value for a heat source system; an operation plan preparing unit configured to prepare an operation plan of the heat source system to supply heat of the predicted heat demand upper limit to a consuming facility; a surplus stored heat quantity calculating unit configured to repeatedly perform a process of calculating a surplus stored heat quantity by subtracting a heat quantity consumed by the consuming facility from the predicted heat demand upper limit; and an operation plan changing unit configured to sequentially change the operation plan by decreasing a future operation rate of a refrigerator to cancel the surplus stored heat quantity.Type: GrantFiled: November 6, 2015Date of Patent: October 20, 2020Assignee: HITACHI, LTD.Inventors: Tsutomu Kawamura, Kaoru Kawabata, Ryousuke Nakamura, Hiroshige Kikuchi, Susumu Ikeda
-
Patent number: 10554065Abstract: A battery control apparatus includes a reduced electricity cost analysis unit that obtains a discharge electric power cost at a discharge time and a charge electric power cost at a charge time of a battery, based on a basic cost and a unit cost of an electricity bill, and obtains a reduced electricity cost in which the charge electric power cost is subtracted from the discharge electric power cost for every discharge depth of the battery; an introduction cost analysis unit that calculates an introduction cost of the battery for every discharge depth of the battery; and a charge and discharge depth optimization unit that obtains a difference of the reduced electricity cost and the introduction cost for every discharge depth of the battery, and determines a charge and discharge depth of the battery based on the difference. The discharge of the battery is performed at the determined charge and discharge depth.Type: GrantFiled: September 10, 2014Date of Patent: February 4, 2020Assignee: Hitachi, Ltd.Inventors: Noriyuki Miyake, Yasushi Tomita, Tsutomu Kawamura, Hirotaka Takahashi, Kenichi Kuwabara, Daisuke Hisajima, Junichi Yamada
-
Publication number: 20180181153Abstract: Provided is an equipment operation plan generating device for generating an operation plan of a plurality of pieces of equipment for supplying energy from an energy supply network to a customer includes a group unit characteristic generating unit that divides the plurality of pieces of equipment into a plurality of groups, and generates group unit characteristic information indicating an energy consumption amount with respect to magnitude of output of a group unit from device unit characteristic information indicating an energy consumption amount with respect to magnitude of output of the equipment, a group unit plan generating unit that generates group unit operation plan information by regarding the plurality of pieces of equipment in the group as one equipment based on demand forecast information of the customer and the group unit characteristic information, and an equipment unit plan generating unit that generates the operation plan for each equipment based on the group unit operation plan information andType: ApplicationFiled: December 26, 2017Publication date: June 28, 2018Inventors: Hirotaka TAKAHASHI, Tsutomu KAWAMURA, Tooru AKATSU
-
Publication number: 20170363315Abstract: An operation management apparatus includes: a refrigerant return temperature prediction unit that predicts a temperature Tr of a refrigerant returning from an air conditioner to a heat source system; a heat storage capacity estimation unit that estimates a heat storage capacity of the heat source system, based on the predicted refrigerant return temperature Tr; and an operation plan unit that creates a plan based on the estimated heat storage capacity. The heat source system includes: a storage tank that supplies the refrigerant to the air conditioner; a refrigerant generation unit that cools the refrigerant returning from the air conditioner via the storage tank, and supplies it to the storage tank; a refrigerant feed temperature detection unit that measures a temperature of the refrigerant from the refrigerant generation unit; and a refrigerant return temperature detection unit that measures a temperature of the refrigerant returning from the storage tank.Type: ApplicationFiled: January 20, 2016Publication date: December 21, 2017Applicant: HITACHI, LTD.Inventors: Kaoru KAWABATA, Tsutomu KAWAMURA, Ryousuke NAKAMURA, Hiroshige KIKUCHI, Susumu IKEDA
-
Publication number: 20170314789Abstract: A heat source system managing device includes: a predicted heat demand upper limit calculating unit configured to calculate a predicted heat demand upper limit by adding a prediction error to a predicted heat demand value for a heat source system; an operation plan preparing unit configured to prepare an operation plan of the heat source system to supply heat of the predicted heat demand upper limit to a consuming facility; a surplus stored heat quantity calculating unit configured to repeatedly perform a process of calculating a surplus stored heat quantity by subtracting a heat quantity consumed by the consuming facility from the predicted heat demand upper limit; and an operation plan changing unit configured to sequentially change the operation plan by decreasing a future operation rate of a refrigerator to cancel the surplus stored heat quantity.Type: ApplicationFiled: November 6, 2015Publication date: November 2, 2017Applicant: HITACHI, LTD.Inventors: Tsutomu KAWAMURA, Kaoru KAWABATA, Ryousuke NAKAMURA, Hiroshige KIKUCHI, Susumu IKEDA
-
Publication number: 20170159959Abstract: The purpose of the present invention is to minimize impact on the comfort of people in a room and to achieve energy conservation in heat-source functions in an energy network comprising a plurality of heat-source functions that generate cold water and/or warm water, and a plurality of air-conditioning functions that obtain an air-conditioning effect by consuming the cold water and/or warm water generated by the heat-source functions. Disclosed is an energy network comprising a plurality of heat-source functions that generate thermal energy, and a plurality of air-conditioning functions that obtain an air-conditioning effect by consuming the thermal energy generated by the heat-source functions, wherein the energy network comprises: a first control function that selectively starts or stops the heat-source functions; and a second control function that controls the output of the air-conditioning functions.Type: ApplicationFiled: June 20, 2014Publication date: June 8, 2017Inventors: Hirotaka TAKAHASHI, Tsutomu KAWAMURA
-
Publication number: 20170005483Abstract: A battery control apparatus includes a reduced electricity cost analysis unit that obtains a discharge electric power cost at a discharge time and a charge electric power cost at a charge time of a battery, based on a basic cost and a unit cost of an electricity bill, and obtains a reduced electricity cost in which the charge electric power cost is subtracted from the discharge electric power cost for every discharge depth of the battery; an introduction cost analysis unit that calculates an introduction cost of the battery for every discharge depth of the battery; and a charge and discharge depth optimization unit that obtains a difference of the reduced electricity cost and the introduction cost for every discharge depth of the battery, and determines a charge and discharge depth of the battery based. on the difference. The discharge of the battery is performed at the determined charge and discharge depth.Type: ApplicationFiled: September 10, 2014Publication date: January 5, 2017Inventors: Noriyuki MIYAKE, Yasushi TOMITA, Tsutomu KAWAMURA, Hirotaka TAKAHASHI, Kenichi KUWABARA, Daisuke HISAJIMA, Junichi YAMADA
-
Patent number: 8551417Abstract: In order to provide, when a plurality of fluids each containing a different kind of substance are mixed and reacted, a reactor having a mixing channel capable of forming a multi-layered flow in a radial direction in the cylindrically-shaped mixing channel; improving mixing performance by synergizing swirling effects of mixture of turbulent flows and a swirling flow; and producing a reaction product with a high yield as well as high efficiency, a mixing channel 1 which mixes fluids 4 and 5 each containing the different kind of substance is cylindrically shaped, and inlet passages 2 and 3 which introduce the fluids 4 and 5, respectively, are plurally arranged in a manner offset from a central axis of the mixing channel 1.Type: GrantFiled: August 12, 2009Date of Patent: October 8, 2013Assignee: Hitachi Plant Technologies, Ltd.Inventors: Tomofumi Shiraishi, Tsutomu Kawamura, Takeyuki Kondo
-
Patent number: 8450531Abstract: An object of the present invention is to provide a method for commercially manufacturing acrolein in a large flow rate by making supercritical water and an acid interact with glycerin, wherein by efficiently mixing high-concentration glycerin and supercritical water with each other, the method is made capable of making the synthesis stably proceed with a high yield while the occlusion and abrasion of the pipes and devices due to the generation of by-products are being suppressed.Type: GrantFiled: December 28, 2010Date of Patent: May 28, 2013Assignee: Hitachi Plant Technologies, Ltd.Inventors: Takeyuki Kondo, Masayuki Kamikawa, Kenichiro Oka, Toshiaki Matsuo, Masashi Tanto, Yasunari Sase, Hiroyuki Ito, Tomofumi Shiraishi, Tsutomu Kawamura, Naruyasu Okamoto
-
Publication number: 20110171082Abstract: In order to provide, when a plurality of fluids each containing a different kind of substance are mixed and reacted, a reactor having a mixing channel capable of forming a multi-layered flow in a radial direction in the cylindrically-shaped mixing channel; improving mixing performance by synergizing swirling effects of mixture of turbulent flows and a swirling flow; and producing a reaction product with a high yield as well as high efficiency, a mixing channel 1 which mixes fluids 4 and 5 each containing the different kind of substance is cylindrically shaped, and inlet passages 2 and 3 which introduce the fluids 4 and 5, respectively, are plurally arranged in a manner offset from a central axis of the mixing channel 1.Type: ApplicationFiled: August 12, 2009Publication date: July 14, 2011Applicant: HITACHI PLANT TECHNOLOGIES, LTD.Inventors: Tomofumi Shiraishi, Tsutomu Kawamura, Takeyuki Kondo
-
Publication number: 20110160447Abstract: An object of the present invention is to provide a method for commercially manufacturing acrolein in a large flow rate by making supercritical water and an acid interact with glycerin, wherein by efficiently mixing high-concentration glycerin and supercritical water with each other, the method is made capable of making the synthesis stably proceed with a high yield while the occlusion and abrasion of the pipes and devices due to the generation of by-products are being suppressed.Type: ApplicationFiled: December 28, 2010Publication date: June 30, 2011Inventors: Takeyuki KONDO, Masayuki Kamikawa, Kenichiro Oka, Toshiaki Matsuo, Masashi Tanto, Yasunari Sase, Hiroyuki Ito, Tomofumi Shiraishi, Tsutomu Kawamura, Naruyasu Okamoto
-
Patent number: 7901639Abstract: There is provided a reaction apparatus which is capable of keeping the pressure inside the reactor and is applicable to various fields. This reaction apparatus comprises: a raw material tank (2) for storing a raw material; a high-pressure pump (3) communicated with the raw material tank (2) and designed to deliver the raw material therefrom; a reactor (1) which is disposed on the downstream side of the high-pressure pump (3) and designed to be supplied with the raw material in a compressed state; a heating bath (11) for heating the reactor (1) to promote a reaction; and a product tank (7) for receiving and recovering a product; wherein the reaction apparatus is further equipped with an inlet port which is interposed between the heating bath (11) and the product tank (7), and with an injection pump (6) for injecting an injecting liquid through the inlet port, whereby a pressure of product flowing into the product tank (7) is enabled to be reduced by making use of the flow rate of the injecting liquid.Type: GrantFiled: July 27, 2007Date of Patent: March 8, 2011Assignee: Hitachi, Ltd.Inventors: Tadashi Sano, Mio Suzuki, Yukako Asano, Shigenori Togashi, Tsutomu Kawamura, Tomofumi Shiraishi
-
Patent number: 7599052Abstract: A defect marking device includes a flaw inspection device which has a plurality of light-receiving parts that identify reflected lights coming from an inspection plane of a metal strip under two or more of optical conditions different from each other; a signal processing section that judges the presence/absence of surface flaw on the inspection plane based on a combination of reflected light components identified under these optical conditions different from each other; and a marking device which applies marking that indicates information relating to the flaw on the surface of the metal strip.Type: GrantFiled: August 13, 2008Date of Patent: October 6, 2009Assignee: NKK CorporationInventors: Mitsuaki Uesugi, Shoji Yoshikawa, Masaichi Inomata, Tsutomu Kawamura, Takahiko Oshige, Hiroyuki Sugiura, Akira Kazama, Tsuneo Suyama, Yasuo Kushida, Shuichi Harada, Hajime Tanaka, Osamu Uehara, Shuji Kaneto, Masahiro Iwabuchi, Kozo Harada, Shinichi Tomonaga, Shigemi Fukuda
-
Publication number: 20090086209Abstract: A defect marking device includes a flaw inspection device which has a plurality of light-receiving parts that identify reflected lights coming from an inspection plane of a metal strip under two or more of optical conditions different from each other; a signal processing section that judges the presence/absence of surface flaw on the inspection plane based on a combination of reflected light components identified under these optical conditions different from each other; and a marking device which applies marking that indicates information relating to the flaw on the surface of the metal strip.Type: ApplicationFiled: August 13, 2008Publication date: April 2, 2009Applicant: NKK CorporationInventors: Mitsuaki Uesugi, Shoji Yoshikawa, Masaichi Inomata, Tsutomu Kawamura, Takahiko Oshige, Hiroyuki Sugiura, Akira Kazama, Tsuneo Suyama, Yasuo Kushida, Shuichi Harada, Hajime Tanaka, Osamu Uehara, Shuji Kaneto, Masahiro Iwabuchi, Kozo Harada, Shinichi Tomonaga, Shigemi Fukuda
-
Patent number: 7423744Abstract: A defect marking device includes a flaw inspection device which has a plurality of light-receiving parts that identify reflected lights coming from an inspection plane of a metal strip under two or more of optical conditions different from each other; a signal processing section that judges the presence/absence of surface flaw on the inspection plane based on a combination of reflected light components identified under these optical conditions different from each other; and a marking device which applies marking that indicates information relating to the flaw on the surface of the metal strip.Type: GrantFiled: October 24, 2006Date of Patent: September 9, 2008Assignee: NKK CorporationInventors: Mitsuaki Uesugi, Shoji Yoshikawa, Masaichi Inomata, Tsutomu Kawamura, Takahiko Oshige, Hiroyuki Sugiura, Akira Kazama, Tsuneo Suyama, Yasuo Kushida, Shuichi Harada, Hajime Tanaka, Osamu Uehara, Shuji Kaneto, Masahiro Iwabuchi, Kozo Harada, Shinichi Tomonaga, Shigemi Fukuda