Patents by Inventor Kohei Oda

Kohei Oda 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: 20210276949
    Abstract: The present invention provides a heterocyclic compound having an orexin type 2 receptor agonist activity. A compound represented by the formula (I): wherein each symbol is as described in the specification, or a salt thereof has an orexin type 2 receptor agonist activity, and is useful as an agent for the prophylaxis or treatment of narcolepsy.
    Type: Application
    Filed: April 23, 2021
    Publication date: September 9, 2021
    Applicant: Takeda Pharmaceutical Company Limited
    Inventors: Yasushi HATTORI, Yuhei MIYANOHANA, Yuichi KAJITA, Tatsuki KOIKE, Yasutaka HOASHI, Norihito TOKUNAGA, Alexander Martin PAWLICZEK, Tsuneo ODA, Tohru MIYAZAKI, Yoshiteru ITO, Kohei TAKEUCHI, Keisuke IMAMURA, Takahiro SUGIMOTO
  • Patent number: 10991961
    Abstract: A fuel cell system includes a removal treatment execution unit configured to execute an oxide layer removal treatment that removes an oxide layer generated on a catalyst of a fuel cell. The removal treatment execution unit is configured to execute the oxide layer removal treatment by adjusting a voltage of the fuel cell to be within a predetermined second voltage range lower than a predetermined first voltage range that is lower than an open-circuit voltage, when an operation of the fuel cell system shifts from a first operation, where a current value of the fuel cell is zero and the flow rate is controlled to maintain the voltage of the fuel cell within the first voltage range, to a second operation, where the current value is larger than zero and the flow rate is controlled in response to an output request to the fuel cell.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: April 27, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoshi Shiokawa, Takahiko Hasegawa, Kohei Oda, Satoshi Watanabe, Shuhei Nakamura, Norihiro Fukaya
  • Patent number: 10804553
    Abstract: A fuel cell system according to one embodiment performs refresh control of an electrode catalyst of a fuel cell, by reducing a stack voltage as a voltage of the fuel cell to a refresh voltage at which the electrode catalyst is activated. The system includes the fuel cell that generates electric power by an electrochemical reaction using fuel gas and oxidation gas, a stack voltage sensor that sensors the stack voltage, and a controller that controls power of the fuel cell. When a high load demand that makes the stack voltage lower than a given voltage is made on the fuel cell, the controller causes the fuel cell to deliver power commensurate with the high load demand, and performs refresh control when the stack voltage becomes lower than the given voltage through the above control.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: October 13, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshiaki Tsuruta, Satoshi Watanabe, Hideyuki Kumei, Shuya Kawahara, Kohei Oda
  • Publication number: 20200283742
    Abstract: Provided are a method and a reagent for improving the activity of PETase. The method includes adding a surfactant, when a PETase (a) an aromatic polyester-degrading enzyme consisting of the amino acid sequence as set forth in SEQ ID NO: 2 or 4 in the sequence listing; or PETase (b) an aromatic polyester-degrading enzyme consisting of an amino acid sequence comprising a deletion, substitution or addition of one or several amino acids with respect to the amino acid sequence as set forth in SEQ ID NO: 2 or 4 in the sequence listing, and having an aromatic polyester-degrading activity is allowed to act on PET so as to degrade the PET.
    Type: Application
    Filed: March 9, 2018
    Publication date: September 10, 2020
    Applicant: KEIO UNIVERSITY
    Inventors: Kenji MIYAMOTO, Makoto FURUKAWA, Norifumi KAWAKAMI, Kohei ODA
  • Publication number: 20200103425
    Abstract: Disclosed is a specimen measurement apparatus that includes a measurement unit configured to measure a specimen; a detector configured to detect at least one of a container that can store the specimen or a cap of the container; and a movement mechanism configured to move at least one of the container or the detector. In the specimen measurement apparatus, the detector detects at least one of the container and the cap in a state where the movement mechanism is moving the container relative to the detector.
    Type: Application
    Filed: September 18, 2019
    Publication date: April 2, 2020
    Inventors: Jun INAGAKI, Yoshinori NAKAMURA, Kohei ODA
  • Publication number: 20200072857
    Abstract: A sample rack used to hold a sample container containing a sample and to transport the held sample container, includes a container holding part configured to hold the sample container; and a mark indicating an amount of the sample stored in the sample container held by the container holding part.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 5, 2020
    Inventors: Kohei ODA, Hiroyuki MATSUURA
  • Publication number: 20200072855
    Abstract: A transport system includes a sample rack configured to hold a sample and comprising a notch; a rack storage unit in which the sample rack is stored; a transport path arranged to transport the sample rack moved from the rack storage unit; and a regulating member configured to regulate movement of the sample rack from the rack storage unit toward the transport path, wherein the regulating member is provided at a position corresponding to the notch provided in the sample rack, and enters an interior of the sample rack from the notch and abuts an interior wall of the sample rack as the sample rack moves from the rack storage unit toward the transport path.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 5, 2020
    Inventor: Kohei ODA
  • Publication number: 20200072860
    Abstract: A sample analyzer includes a suction unit configured to suction a sample in a sample container through a stopper installed in an opening of the sample container; a rack transport unit configured to transport a sample rack holding a sample container along a transport path, and position the sample container held by the sample rack at a suction position by the suction unit; a sample transport unit in which a sample container other than the sample container transported by the rack transport unit is installed and which is configured to transport the installed sample container to the suction position provided on the transport path; a measurement unit configured to measure a sample suctioned by the suction unit from the sample container positioned at the suction position; and an analysis unit configured to analyze the sample based on the measurement result of the measurement unit.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 5, 2020
    Inventors: Kohei ODA, Hironori KATSUMI
  • Patent number: 10547072
    Abstract: A fuel cell system of the present disclosure performs a first and a second catalyst activation process, and the first catalyst activation process is performed where a flow rate of the air supplied to the fuel cell by the air compressor is reduced to be less than that before the refresh control is performed while keeping an amount of a current drawn from the fuel cell by the fuel cell converter at the same value as that before the refresh control is performed, and the second catalyst activation process is performed where the value of the current drawn from the fuel cell by the fuel cell converter is increased to be greater than that before the refresh control is performed while keeping the flow rate of the air supplied to the fuel cell by the air compressor at the same value as that before the refresh control is performed.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: January 28, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshiaki Tsuruta, Kohei Oda, Satoshi Watanabe, Hideyuki Kumei, Shuya Kawahara
  • Publication number: 20190280317
    Abstract: A fuel cell system includes a removal treatment execution unit configured to execute an oxide layer removal treatment that removes an oxide layer generated on a catalyst of a fuel cell. The removal treatment execution unit is configured to execute the oxide layer removal treatment by adjusting a voltage of the fuel cell to be within a predetermined second voltage range lower than a predetermined first voltage range that is lower than an open-circuit voltage, when an operation of the fuel cell system shifts from a first operation, where a current value of the fuel cell is zero and the flow rate is controlled to maintain the voltage of the fuel cell within the first voltage range, to a second operation, where the current value is larger than zero and the flow rate is controlled in response to an output request to the fuel cell.
    Type: Application
    Filed: February 28, 2019
    Publication date: September 12, 2019
    Inventors: Satoshi SHIOKAWA, Takahiko HASEGAWA, Kohei ODA, Satoshi WATANABE, Shuhei NAKAMURA, Norihiro FUKAYA
  • Publication number: 20190260046
    Abstract: A fuel cell system includes a power supply circuit that supplies electric power from a fuel cell and a secondary battery to the load and charges the secondary battery with electric power from the fuel cell. A decision value acquirer monitors a charge-discharge state of the secondary battery and obtains a decision value that is used to determine a degree of localization of an ion concentration in an electrolytic solution in the secondary battery. When the decision value becomes equal to or greater than a predetermined reference value, a controller limits discharge of the secondary battery. When the decision value is equal to or greater than the reference value and the required power decreases, the controller limits a decrease in output power of the fuel cell and causes the secondary battery to be charged with the electric power corresponding to the limitation imposed on the decrease in output power.
    Type: Application
    Filed: February 20, 2019
    Publication date: August 22, 2019
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventor: Kohei Oda
  • Patent number: 10256488
    Abstract: A fuel cell system comprises: a fuel cell stack; a turbo compressor configured to supply a cathode gas to the fuel cell stack through a cathode gas supply line; a pressure regulation valve configured to regulate a pressure of the cathode gas; and a controller, wherein the controller is configured to calculate a target rotation speed of the turbo compressor and a target opening position of the pressure regulation valve, based on a target flow rate of the cathode gas and a target pressure of the cathode gas that are determined according to a required power output of the fuel cell stack and to control the turbo compressor and the pressure regulation valve using the calculated target rotation speed and the calculated target opening position, and the controller is configured, upon increase of the required power output, to: (a) determine an acceptable overshoot level of a flow rate of the cathode gas that is to be supplied to the fuel cell stack, the acceptable overshoot level being selected from a plurality of lev
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: April 9, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Atsuo Iio, Tomio Yamanaka, Kohei Oda, Naoki Sugiyama
  • Patent number: 10141591
    Abstract: A fuel cell system comprises a controller configured to: (i) calculate a torque target value of a compressor and an opening position target value of a pressure regulation valve from a flow rate target value of a cathode gas and a pressure target value of a cathode gas flow path, the flow rate target value of the cathode gas and the pressure target value being determined according to a required power output of a fuel cell stack; (ii) calculate a torque feedback value of the compressor from a difference between a flow rate measurement value and the flow rate target value of the cathode gas, and control the compressor using a torque command value obtained by adding the torque target value and the torque feedback value; and (iii) calculate an opening position feedback value of the pressure regulation valve from a difference between a pressure measurement value and the pressure target value of the cathode gas flow path, and control an opening position of the pressure regulation valve using an opening position comm
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: November 27, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Naoki Sugiyama, Atsuo Iio, Kohei Oda, Tomio Yamanaka
  • Publication number: 20180267069
    Abstract: A sample analyzer may include: a reagent table; a first reagent dispensing unit that dispenses a reagent from a reagent container in a first aspirating position into a reaction container; a second reagent dispensing unit that dispenses a reagent from a reagent container in a second aspirating position into a reaction container; a detection unit including detectors provided for holders that each hold a reaction container holding a measurement specimen containing a sample and the reagent dispensed by the first or the second reagent dispensing unit; and a controller that causes the reagent table to: transfer the reagent container, which holds the reagent relating to a measurement item for which the first reagent dispensing unit is used, to the first aspirating position; and transfer the reagent container, which holds the reagent relating to a measurement item for which the second reagent dispensing unit is used, to the second aspirating position.
    Type: Application
    Filed: May 21, 2018
    Publication date: September 20, 2018
    Applicant: SYSMEX CORPORATION
    Inventors: Hironori KATSUMI, Shunsuke SAITO, Kohei ODA
  • Publication number: 20180259545
    Abstract: A sample analyzer may include: a heating table including: holding holes in which reaction containers each housing a sample are held, respectively; and a heater that heats the reaction containers in the holding holes; a reagent dispensing unit that dispenses a reagent into the reaction containers heated on the heating table; a detection unit including: holders that hold the reaction containers each housing a measurement specimen, respectively; and detectors that detect analysis signals from the measurement specimens, respectively; a controller that analyzes each sample based on each analysis signal; a first transfer unit that transfers one of the reaction containers in the holding holes to one of the holders in a first region of the detection unit; and a second transfer unit that transfers one of the reaction containers in the holding holes to one of the holders in a second region of the detection unit.
    Type: Application
    Filed: May 16, 2018
    Publication date: September 13, 2018
    Applicant: SYSMEX CORPORATION
    Inventors: Hironori KATSUMI, Shunsuke SAITO, Kohei ODA
  • Publication number: 20180145356
    Abstract: A fuel cell system according to one embodiment performs refresh control of an electrode catalyst of a fuel cell, by reducing a stack voltage as a voltage of the fuel cell to a refresh voltage at which the electrode catalyst is activated. The system includes the fuel cell that generates electric power by an electrochemical reaction using fuel gas and oxidation gas, a stack voltage sensor that sensors the stack voltage, and a controller that controls power of the fuel cell. When a high load demand that makes the stack voltage lower than a given voltage is made on the fuel cell, the controller causes the fuel cell to deliver power commensurate with the high load demand, and performs refresh control when the stack voltage becomes lower than the given voltage through the above control.
    Type: Application
    Filed: November 8, 2017
    Publication date: May 24, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshiaki TSURUTA, Satoshi WATANABE, Hideyuki KUMEI, Shuya KAWAHARA, Kohei ODA
  • Patent number: 9970447
    Abstract: A fuel cell system includes an air compressor that supplies oxidant gas to a fuel cell installed in a fuel cell vehicle, a measured rotational speed acquirer that acquires a measured value of rotational speed of the air compressor, and a controller that calculates a rotational speed command value of the air compressor based on required generated power of the fuel cell, calculates a torque command value of the air compressor based on the calculated rotational speed command value and current rotational speed of the air compressor, and controls rotational speed of the air compressor based on the calculated torque command value. The controller estimates the current rotational speed of the air compressor baaed on the measured value of the rotational speed acquired by the measured rotational speed acquirer and a history of the calculated torque command value, and calculates the torque command value by using the estimated rotational speed.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: May 15, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kohei Oda, Kenji Umayahara
  • Publication number: 20180108926
    Abstract: A fuel cell system of the present disclosure performs a first and a second catalyst activation process, and the first catalyst activation process is performed where a flow rate of the air supplied to the fuel cell by the air compressor is reduced to be less than that before the refresh control is performed while keeping an amount of a current drawn from the fuel cell by the fuel cell converter at the same value as that before the refresh control is performed, and the second catalyst activation process is performed where the value of the current drawn from the fuel cell by the fuel cell converter is increased to be greater than that before the refresh control is performed while keeping the flow rate of the air supplied to the fuel cell by the air compressor at the same value as that before the refresh control is performed.
    Type: Application
    Filed: October 5, 2017
    Publication date: April 19, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshiaki TSURUTA, Kohei ODA, Satoshi WATANABE, Hideyuki KUMEI, Shuya KAWAHARA
  • Patent number: 9884567
    Abstract: In a vehicle including a fuel cell system, an electronic control unit is configured to perform first processing in which a rotation speed of an air pump is controlled based on a torque command value and a rotation speed command value, and to perform, in the first processing, at least one of second processing in which the torque command value is set to be larger than the calculated torque command value when at least one of values of an accelerator position, required electric power, and the rotation speed command value or a change rate thereof is increased by a prescribed first value or more, and third processing in which the torque command value is set to be smaller than the calculated torque command value when at least one of the values or the change rate thereof is decreased by a prescribed second value or more.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: February 6, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kohei Oda, Kenji Umayahara, Yuji Kakeno, Mitsuhiro Nada
  • Patent number: 9802505
    Abstract: With a fuel cell vehicle includes a fuel cell and a secondary battery, a drive motor and a pump motor are connected to each other via an electric power line so that the drive motor and the pump motor are capable of receiving and supplying electric power with each other without involving reception and supply of electric power with the secondary battery. The control device determines an upper-limit guard value of torque of the pump motor based on a dischargeable power of the secondary battery and an output power of the fuel cell, or determines a lower-limit guard value of torque of the pump motor based on a chargeable power of the secondary battery and an output power of the fuel cell.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: October 31, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kohei Oda, Yuji Kakeno