Patents by Inventor Toshihiro Wada

Toshihiro Wada 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: 20150369870
    Abstract: Switches change the resistance value of a charge/discharge circuit in a period from starting a discharging at an upper limit voltage until the voltage reaches a lower limit voltage. An electric charge estimator computes electric charge by time-integrating current from a start of the discharging to an arbitrarily determined time, and computes a relationship between electric charge and voltage of a power storage device. An internal resistance estimator computes internal resistance based on voltages and currents of the storage device at times when resistance values are different. An electric energy estimator computes a relationship between electric charge and open voltage based on electric charge, voltage, current and internal resistance of the storage device. During charging or discharging of the storage device, the electric energy estimator estimates the electric energy of the power storage device based on the electric charge, the open voltage, the internal resistance, and the charge/discharge current.
    Type: Application
    Filed: March 18, 2013
    Publication date: December 24, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yuruki OKADA, Sho SHIRAGA, Toshihiro WADA, Shoj i YOSHIOKA
  • Publication number: 20150357843
    Abstract: A storage battery equalization device is provided with: a battery pack including a plurality of storage battery modules; a plurality of equalization circuits corresponding to the respective storage battery modules, each including a DC/AC mutual converter circuit, a variable capacitor, and a transformer; external wirings interconnecting secondary windings of the transformers; voltage monitors each being connected across both electrodes of a corresponding storage battery module; and an equalization control unit.
    Type: Application
    Filed: September 17, 2013
    Publication date: December 10, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shoichi KOBAYASHI, Takashi SHINDOI, Hiroshi ARAKI, Kenji INOMATA, Toshihiro WADA, Shoji YOSHIOKA
  • Publication number: 20150331059
    Abstract: A controller of a battery monitoring apparatus, said controller calculating the amount of heat generated inside a battery on the basis of information about the electric current which flows out of or flows into the battery. Furthermore, the controller calculates the amount of heat discharged from the surface of the battery, said amount being calculated on the basis of temperature information about at least one from among the surface of the battery and a substance in the vicinity of the battery. In addition, the controller calculates the temperature inside the battery on the basis of information about the amount of heat generated, and information about the amount of heat discharged.
    Type: Application
    Filed: January 30, 2013
    Publication date: November 19, 2015
    Inventors: Yuruki OKADA, Sho SHIRAGA, Toshihiro WADA, Shoji YOSHIOKA
  • Patent number: 9180790
    Abstract: A DC feeder voltage control apparatus includes a model-information storing unit storing train model information on each train running in a control section, substation model information on each substation, and feeding network model information in the control section, a fixed-voltage-value storing unit storing a fixed voltage value of a substation voltage set for each substation, a train-operation-state-information acquiring unit acquiring positions and operation state information on the trains running in the control section, a first-substation-voltage fixing unit outputting the fixed voltage value to two first substations located at both ends of the control section, and a second-substation-voltage calculating unit calculating a setting voltage value of the substation voltage in at least one second substation located between the two first substations based on the information, and substation voltages and substation currents of the first substations to output to the second substation.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: November 10, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kenji Ueda, Toshihiro Wada, Yasushi Matsumura, Satoru Takahashi, Toshiyuki Katsurayama
  • Publication number: 20150285869
    Abstract: A battery internal state estimation apparatus including: an internal state estimation unit, which inputs at least one of measured values obtained by a battery measurement unit at preset sampling intervals including a current flowing through a battery, an inter-terminal voltage, a temperature of the battery, and an ambient air temperature, for estimating, based on the measured values, at least one of a state of charge, internal temperature, capacity, and internal resistance of the battery as an internal state of the battery; and an internal state correction unit for correcting estimated values of the internal state obtained by the internal state estimation unit so that the estimated values are not contradictory at least to qualitative properties of the battery, and outputting the corrected values to an output unit.
    Type: Application
    Filed: November 21, 2013
    Publication date: October 8, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Toshihiro Wada, Keita Hatanaka, Hidetoshi Kitanaka, Yuruki Okada
  • Patent number: 8983690
    Abstract: A system and method optimizes energy consumption in a railway system including a set of trains, a set of energy storage devices, and a set of substations connected to a grid by first optimizing control parameters controlling at least part of the energy consumption of the railway system to produce optimized control parameters. The optimized control parameters minimize, over multiple time steps, a combination of total power provided by the grid to satisfy a power demand of the railway system, a state-of-charge of each energy storage device, power supplied to charge the energy storage device and power supplied by the energy storage device. The optimizing is subject to constraints on operations of the railway system over multiple time steps. The constraints include a complementarity constraint. A command is generated to control the energy consumption of the railway system based on the optimized control parameters.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: March 17, 2015
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Arvind U Raghunathan, Yunwen Xu, Toshihiro Wada, Kenji Ueda, Satoru Takahashi
  • Publication number: 20150061601
    Abstract: A battery-condition monitoring device that monitors a condition of the battery through discharge thereof includes a discharger and a discharge control device. The discharger includes a discharge circuit having a load resistor and a switching element connected in series between a positive electrode of the battery and a negative electrode thereof. The discharge control device controls an open/close operation of the switching element. The discharge control device adjusts the resistance value of the load resistor in the discharger, thereby enabling an adjustment of a discharge current.
    Type: Application
    Filed: April 12, 2012
    Publication date: March 5, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Keita Hatanaka, Sho Shiraga, Toshihiro Wada, Shoji Yoshioka
  • Publication number: 20150027838
    Abstract: A DC feeder voltage control apparatus includes a model-information storing unit storing train model information on each train running in a control section, substation model information on each substation, and feeding network model information in the control section, a fixed-voltage-value storing unit storing a fixed voltage value of a substation voltage set for each substation, a train-operation-state-information acquiring unit acquiring positions and operation state information on the trains running in the control section, a first-substation-voltage fixing unit outputting the fixed voltage value to two first substations located at both ends of the control section, and a second-substation-voltage calculating unit calculating a setting voltage value of the substation voltage in at least one second substation located between the two first substations based on the information, and substation voltages and substation currents of the first substations to output to the second substation.
    Type: Application
    Filed: December 6, 2012
    Publication date: January 29, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kenji Ueda, Toshihiro Wada, Yasushi Matsumura, Satoru Takahashi, Toshiyuki Katsurayama
  • Publication number: 20150002095
    Abstract: The present invention relates to a parallel electricity-storage system that includes: a plurality of DC buses; a number of sets of battery banks formed by serially connecting one or a plurality of battery cells capable of charging and discharging, the number thereof being larger than number of the DC buses; a switch provided for each of the battery banks and serially connected to the battery bank to switch connection between the battery bank and each of the DC buses; charge/discharge circuits as many as the number of the DC buses that charge the respective battery banks via the DC buses or supply discharged power from the respective battery banks received via the DC buses to a load device; a voltage detector that detects a voltage of the respective battery banks; and a controller that controls the switch based on at least a voltage detected by the voltage detector.
    Type: Application
    Filed: February 9, 2012
    Publication date: January 1, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Toshihiro Wada, Hisanori Yamasaki, Keita Hatanaka
  • Publication number: 20140277861
    Abstract: A system and method optimizes energy consumption in a railway system including a set of trains, a set of energy storage devices, and a set of substations connected to a grid by first optimizing control parameters controlling at least part of the energy consumption of the railway system to produce optimized control parameters. The optimized control parameters minimize, over multiple time steps, a combination of total power provided by the grid to satisfy a power demand of the railway system, a state-of-charge of each energy storage device, power supplied to charge the energy storage device and power supplied by the energy storage device. The optimizing is subject to constraints on operations of the railway system over multiple time steps. The constraints include a complementarity constraint. A command is generated to control the energy consumption of the railway system based on the optimized control parameters.
    Type: Application
    Filed: February 25, 2014
    Publication date: September 18, 2014
    Applicants: Mitsubishi Electric Corporation, Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Arvind U. Raghunathan, Yunwen Xu, Toshihiro Wada, Kenji Ueda, Satoru Takahashi
  • Publication number: 20140277858
    Abstract: A method optimizes energy consumption in a railway system including a set of trains and a set of substations connected to a grid. The method optimizes control parameters controlling at least part of the energy consumption of the railway system to produce optimized control parameters minimizing a total power provided by the grid to satisfy a power demand of the railway system. The optimizing is subject to constraints on operations of the railway system, which include as complementarity constraint. Next, the method generates a command to control the energy consumption of the railway system based on the optimized control parameters.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: MITSUBISHI ELECTRIC RESEARCH LABORATORIES, INC.
    Inventors: Arvind U. Raghunathan, Toshihiro Wada, Kenji Ueda, Satoru Takahashi
  • Patent number: 8831801
    Abstract: A method optimizes energy consumption in a railway system including a set of trains and a set of substations connected to a grid. The method optimizes control parameters controlling at least part of the energy consumption of the railway system to produce optimized control parameters minimizing a total power provided by the grid to satisfy a power demand of the railway system. The optimizing is subject to constraints on operations of the railway system, which include as complementarily constraint. Next, the method generates a command to control the energy consumption of the railway system based on the optimized control parameters.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: September 9, 2014
    Assignees: Mitsubishi Electric Research Laboratories, Inc., Mitsubishi Electric Corporation
    Inventors: Arvind U Raghunathan, Toshihiro Wada, Kenji Ueda, Satoru Takahashi
  • Patent number: 8673166
    Abstract: In a plasma processing apparatus, thrust-up pins are elevated and a thrust-up force is detected when electrostatic attraction for a substrate by a substrate holding device is ceased after completion of plasma processing, the elevation of the thrust-up pins is ceased upon detection of a detection threshold, and a stepped elevating operation in which the elevation and stoppage of the thrust-up pins are repeated a plurality of times are thereafter commenced on condition that the detected thrust-up force falls to or below the detection threshold and that release of the substrate from a placement surface has not been completed. In the stepped elevating operation, operation timing of the thrust-up device is controlled so that the completion of the release of the substrate from the placement surface is detected when the thrust-up pins are stopped after being elevated and so that the stepped elevating operation is continued on condition that the release has not been completed.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: March 18, 2014
    Assignee: Panasonic Corporation
    Inventors: Shogo Okita, Hiromi Asakura, Syouzou Watanabe, Toshihiro Wada, Mitsuhiro Okune, Mitsuru Hiroshima
  • Patent number: 8138206
    Abstract: Disclosed is a substance having an antagonistic effect on the binding of histamine to a histamine H3 receptor or an inhibitory effect on the activity which a histamine H3 receptor constantly exhibits. A compound represented by the formula (I) or a pharmaceutically acceptable salt thereof; (I) wherein R1 represents a phenyl group which may be substituted or the like and R2 represents a cyano group which may be substituted or the like, or R1 and R2 together form an aliphatic heterocylic ring which may be substituted; R3 represents a group represented by the formula (II-1) below; and all of X1 to X4 represent a carbon atom or the like: (II-1) where R4 and R5 represent a lower alkyl group or the like; and m1 represents an integer of 2 to 4.
    Type: Grant
    Filed: May 29, 2006
    Date of Patent: March 20, 2012
    Assignee: MSD. K.K.
    Inventors: Shiho Ishikawa, Tsuyoshi Nagase, Nagaaki Sato, Hidekazu Takahashi, Shigeru Tokita, Toshihiro Wada
  • Patent number: 7976721
    Abstract: To provide a safe, nontoxic, and high-performance mixed refrigerant for hot water supply/heating system which is prepared by mixing dimethyl ether with carbon dioxide and which does not deplete the ozone layer, has a low global warming potential, and permits low-pressure operation. A refrigerant composition for hot water supply/heating comprising 1 to 10% by mole of dimethyl ether and 99 to 90% by mole of carbon dioxide on the basis of the total number of moles of dimethyl ether and carbon dioxide.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: July 12, 2011
    Assignees: Japan Petroleum Exploration Co., Ltd., Showa Tansan Co., Ltd., Toyota Tsusho Corporation
    Inventors: Seijyuro Maiya, Osamu Nakagome, Hideyuki Suzuki, Yasuhisa Kotani, Toshifumi Hatanaka, Toshihiro Wada
  • Publication number: 20110111601
    Abstract: In a plasma processing apparatus, thrust-up pins are elevated and a thrust-up force is detected when electrostatic attraction for a substrate by a substrate holding device is ceased after completion of plasma processing, the elevation of the thrust-up pins is ceased upon detection of a detection threshold, and a stepped elevating operation in which the elevation and stoppage of the thrust-up pins are repeated a plurality of times are thereafter commenced on condition that the detected thrust-up force falls to or below the detection threshold and that release of the substrate from a placement surface has not been completed. In the stepped elevating operation, operation timing of the thrust-up device is controlled so that the completion of the release of the substrate from the placement surface is detected when the thrust-up pins are stopped after being elevated and so that the stepped elevating operation is continued on condition that the release has not been completed.
    Type: Application
    Filed: May 28, 2009
    Publication date: May 12, 2011
    Inventors: Shogo Okita, Hiromi Asakura, Syouzou Watanabe, Toshihiro Wada, Mitsuhiro Okune, Mitsuru Hiroshima
  • Publication number: 20110017941
    Abstract: The present invention is directed to using a composition comprising carbon dioxide and dimethyl ether as a refrigerant. In particular, the refrigerant composition comprises 3-6% by mole dimethyl ether and 97-94% by mole of carbon dioxide on the basis of a total number of moles of dimethyl ether and carbon dioxide. Advantageously, the refrigerant composition does not cause ozonosphere depletion, has a low global warming potential, and is safe and nontoxic.
    Type: Application
    Filed: September 9, 2010
    Publication date: January 27, 2011
    Applicants: JAPAN PETROLEUM EXPLORATION CO., LTD., SHOWA TANSAN CO., LTD., TOYOTA TSUSHO CORPORATION
    Inventors: Seijyuro Maiya, Osamu Nakagome, Hideyuki Suzuki, Yasuhisa Kotani, Toshifumi Hatanaka, Toshihiro Wada
  • Publication number: 20110017940
    Abstract: [Problems] To provide a safe, nontoxic, and high-performance mixed refrigerant for hot water supply/heating system which is prepared by mixing dimethyl ether with carbon dioxide and which does not deplete the ozone layer, has a low global warming potential, and permits low-pressure operation. [Means for Solving Problems] A refrigerant composition for hot water supply/heating comprising 1 to 10% by mole of dimethyl ether and 99 to 90% by mole of carbon dioxide on the basis of the total number of moles of dimethyl ether and carbon dioxide.
    Type: Application
    Filed: September 7, 2010
    Publication date: January 27, 2011
    Applicants: JAPAN PETROLEUM EXPLORATION CO., LTD., SHOWA TANSAN CO., LTD., TOYOTA TSUSHO CORPORATION
    Inventors: Seijyuro Maiya, Osamu Nakagome, Hideyuki Suzuki, Yasuhisa Kotani, Toshifumi Hatanaka, Toshihiro Wada
  • Patent number: 7700611
    Abstract: The present invention relates to a process for producing crystalline trans-N-[1-(2-fluorophenyl)-S-pyrazoly]-3-ox-ospiro[6-azaisobenzofuran-1(3H),1?-cyclohexane]-4?-carboxamide and novel salts, hydrates and polymorphs thereof.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: April 20, 2010
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Russell R. Ferlita, Yuji Haga, Makoto Ishikawa, Keisuke Kamei, Shinji Kato, Hisaki Kojima, Aaron Moment, Nobuaki Nonoyama, Nobuya Satake, Kazuki Shigemori, Toshihiro Wada, Yaling Wang, Steven A. Weissman, Robert M. Wenslow
  • Publication number: 20090267018
    Abstract: Problems To provide a refrigerant that is ozone-friendly, exhibiting a very low global warning potential, and that is safe and nontoxic, ensuring high performance, by mixing dimethyl ether with carbon dioxide. Means for Solving Problems There is provided a refrigerant composition for a refrigerator, comprising 10-40% by mole of dimethyl ether and 90-60% by mole of carbon dioxide on the basis of a total number of moles of dimethyl ether and carbon dioxide.
    Type: Application
    Filed: August 16, 2006
    Publication date: October 29, 2009
    Inventors: Seijyuro Maiya, Osamu Nakagome, Hideyuki Suzuki, Yasuhisa Kotani, Toshifumi Hatanaka, Toshihiro Wada