Patents by Inventor Makoto Nagaoka

Makoto Nagaoka 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).

  • Patent number: 11215592
    Abstract: There is provided a separation method in which a target component in a solution can be separated simply but safely and efficiently without contamination from the environment. This method includes: providing a solution containing a target component, and a reaction reagent; while continuously feeding the solution and the reaction reagent to a flow path, intermittently injecting bubbles into the flow path to produce a gas-liquid slug flow in which a mixed liquid containing the solution and the reaction reagent is segmented into a plurality of droplets by the bubbles; continuing the feed of the gas-liquid slug flow in the flow path, thereby facilitating the mixing of the solution and the reaction reagent, and the gasification of the target component by the mixing, in each droplet, and the movement of a target component-derived gas produced by the gasification to the bubbles; and recovering the target component-derived gas with an absorbing liquid.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: January 4, 2022
    Assignees: MITSUI MINING & SMELTING CO., LTD., BL TEC K.K.
    Inventors: Makoto Nagaoka, Fumihiro Yoshinaga, Atsumi Koyanagi, Shunichi Hatamoto, Yozo Ishihara, Makiko Kumagai, Takashi Nishimura
  • Publication number: 20210318278
    Abstract: There is provided a separation method in which a target component in a solution can be separated simply but safely and efficiently without contamination from the environment. This method includes: providing a solution containing a target component, and a reaction reagent; while continuously feeding the solution and the reaction reagent to a flow path, intermittently injecting bubbles into the flow path to produce a gas-liquid slug flow in which a mixed liquid containing the solution and the reaction reagent is segmented into a plurality of droplets by the bubbles; continuing the feed of the gas-liquid slug flow in the flow path, thereby facilitating the mixing of the solution and the reaction reagent, and the gasification of the target component by the mixing, in each droplet, and the movement of a target component-derived gas produced by the gasification to the bubbles; and recovering the target component-derived gas with an absorbing liquid.
    Type: Application
    Filed: November 27, 2019
    Publication date: October 14, 2021
    Applicants: MITSUI MINING & SMELTING CO., LTD., BL TEC K.K.
    Inventors: Makoto NAGAOKA, Fumihiro YOSHINAGA, Atsumi KOYANAGI, Shunichi HATAMOTO, Yozo ISHIHARA, Makiko KUMAGAI, Takashi NISHIMURA
  • Patent number: 10947886
    Abstract: A catalyst state estimation apparatus includes a first sensor, a memory and a processor. The first sensor is configured to acquire information about a catalyst that removes a toxic substance in an exhaust gas, the first sensor being provided in a main passage into which the exhaust gas flows from an internal combustion engine. The memory is configured to previously store a catalyst state estimation model that includes at least one mathematical model. The processor is configured to estimate a removal performance of the catalyst by applying the information about the catalyst acquired by the first sensor to the catalyst state estimation model.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: March 16, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takato Ikedo, Matsuei Ueda, Makoto Nagaoka, Harufumi Muto, Kohei Mori, Hitoshi Hosaki, Atsushi Nagai, Satoshi Takamoto
  • Patent number: 10557450
    Abstract: An internal combustion engine includes a spark plug which protrudes into a combustion chamber. The spark plug has a central electrode and a ground electrode, and is configured such that a spark is generated between the central electrode and the ground electrode by electrical discharge. The spark plug has a vortex generator that separates an air flow near the ground electrode from the ground electrode and generates a vortex at a downstream side. The central electrode and the ground electrode are placed in a manner such that a spark or a flame deformed by an air flow flowing between the central electrode and the ground electrode enters the trailing vortex, or the spark penetrates through the inside of the trailing vortex.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: February 11, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Ryou Masuda, Takayuki Fuyuto, Makoto Nagaoka
  • Publication number: 20190292970
    Abstract: A catalyst state estimation apparatus includes a first sensor, a memory and a processor. The first sensor is configured to acquire information about a catalyst that removes a toxic substance in an exhaust gas, the first sensor being provided in a main passage into which the exhaust gas flows from an internal combustion engine. The memory is configured to previously store a catalyst state estimation model that includes at least one mathematical model. The processor is configured to estimate a removal performance of the catalyst by applying the information about the catalyst acquired by the first sensor to the catalyst state estimation model.
    Type: Application
    Filed: March 20, 2019
    Publication date: September 26, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takato IKEDO, Matsuei Ueda, Makoto Nagaoka, Harufumi Muto, Kohei Mori, Hitoshi Hosaki, Atsushi Nagai, Satoshi Takamoto
  • Publication number: 20180266344
    Abstract: An internal combustion engine is provided, in which a quantity of NOx emission can be reduced without using any special components even when a NOx reduction catalyst has an elevated temperature due to high-load operation. The internal combustion engine includes an engine, a three-way catalyst and a NOx reduction catalyst for purifying exhaust gas emitted from the engine, a temperature sensor for acquiring the temperature of the NOx reduction catalyst, a rotation speed sensor for acquiring an engine rotation speed, an injection controller for controlling a fuel injection quantity in the engine, and a combustion switching controller for switching a combustion mode of the engine between lean and stoichiometric combustion modes based on the NOx reduction catalyst temperature, the engine rotation speed, and the fuel injection quantity acquired from the fuel injection controller.
    Type: Application
    Filed: March 15, 2018
    Publication date: September 20, 2018
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Ryuta MORIYASU, Kazuhisa INAGAKI, Matsuei UEDA, Makoto NAGAOKA, Taro IKEDA
  • Publication number: 20180175301
    Abstract: The present invention provides an arylamine compound represented by the general formula (1) shown below. The arylamine compound of the present invention is a novel compound and, compared with conventional hole transport materials, has high hole mobility, has excellent electron blocking capability, is stable in a thin film state, and is excellent in heat resistance.
    Type: Application
    Filed: June 7, 2016
    Publication date: June 21, 2018
    Applicant: HODOGAYA CHEMICAL CO., LTD.
    Inventors: Hiroshi OOKUMA, Makoto NAGAOKA, Kazuyuki SURUGA
  • Patent number: 9985216
    Abstract: According to the present invention, there are provided an indenoindole derivative represented by the following general formula (1); and an organic electroluminescent element including a pair of electrodes and at least one organic layer sandwiched therebetween, wherein the above compound is used as a constituent material for the at least one organic layer. The indenoindole derivative of the present invention provides an organic compound, which is excellent in hole injection/transport performance, has electron blocking capability, is highly stable in a thin film state, and excels in heat resistance, as a material for a high efficiency, high durability organic electroluminescent element. An organic electroluminescent element formed using this compound is highly efficient and highly durable.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: May 29, 2018
    Assignee: HODOGAYA CHEMICAL CO., LTD.
    Inventors: Makoto Nagaoka, Shigetaka Numazawa, Norimasa Yokoyama, Si In Kim, Shigeru Kusano
  • Patent number: 9905770
    Abstract: An organic compound having a substituted acridan ring structure with characteristics excelling in hole-injecting/transporting performance and having an electron blocking ability, a highly stable thin-film state, and excellent heat resistance is provided as a material for an organic electroluminescent device of high efficiency and high durability, and the organic electroluminescent device of high efficiency and high durability is provided using this compound. The compound is used as a constituent material of at least one organic layer in the organic electroluminescent device that includes a pair of electrodes and one or more organic layers sandwiched between the pair of electrodes.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: February 27, 2018
    Assignee: Hodogaya Chemical Co., Ltd.
    Inventors: Norimasa Yokoyama, Makoto Nagaoka, Naoaki Kabasawa, Eiji Takahashi
  • Patent number: 9882136
    Abstract: An organic electroluminescent device having a capping layer composed of material having a high refractive index that involves only small differences in refractive indices measured in the blue, green, and red wavelength regions, excelling in thin film stability and durability and having no absorption in the respective wavelength ranges of blue, green, and red is provided to improve device characteristics of the organic electroluminescent device, particularly to greatly improve the coupling-out efficiency.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 30, 2018
    Assignee: Hodogaya Chemical Co., Ltd.
    Inventors: Makoto Nagaoka, Shuichi Hayashi, Motonori Tsuji, Yoshikazu Aoki
  • Patent number: 9871210
    Abstract: Naphthotriazole derivatives represented by the following general formula (1), wherein, Ar1 is an aromatic hydrocarbon group or an aromatic heterocyclic group, and A is a group that contains an aromatic heterocyclic group. The compound features excellent electron injection/transporting capability, a high hole-blocking power and a high stability in the form of a thin film, and can be used as a material for producing highly efficient and highly durable organic electroluminescent devices.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: January 16, 2018
    Assignee: HODOGAYA CHEMICAL CO., LTD.
    Inventors: Makoto Nagaoka, Shigetaka Numazawa, Mari Toriya, Shingo Ozawa, Shigeru Kusano
  • Patent number: 9842999
    Abstract: A Benzotriazole derivative represented by the following general formula (1), wherein, Ar1 is a monovalent aromatic hydrocarbon group or aromatic heterocyclic group, Ar2 is a hydrogen atom, a deuterium atom, or a monovalent aromatic hydrocarbon group or aromatic heterocyclic group, A is a divalent aromatic hydrocarbon group or aromatic heterocyclic group, B is a divalent condensed polycyclic aromatic hydrocarbon group or a single bond, and C is a monovalent aromatic heterocyclic group, and wherein if A is a phenylene group, B is a divalent condensed polycyclic aromatic hydrocarbon group or C is a monovalent aromatic heterocyclic group other than a pyridyl group.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: December 12, 2017
    Assignee: HODOGAYA CHEMICAL CO., LTD.
    Inventors: Makoto Nagaoka, Shigetaka Numazawa, Kanae Otsuka, Shigeru Kusano
  • Patent number: 9837620
    Abstract: According to the present invention, there are provided a benzopyridoindole derivative represented by the following general formula (1); and an organic EL element including a pair of electrodes and at least one organic layer sandwiched therebetween, wherein the above derivative is used as a constituent material for the at least one organic layer. The benzopyridoindole derivative of the present invention is excellent in electron injection/transport performance, has hole blocking capability, is highly stable in a thin film state, and excels in various characteristics. Thus, it is useful as a material for an organic EL element with a high efficiency, a low driving voltage, and high durability.
    Type: Grant
    Filed: September 1, 2014
    Date of Patent: December 5, 2017
    Assignee: HODOGAYA CHEMICAL CO., LTD.
    Inventors: Makoto Nagaoka, Kouki Kase, Shigeru Kusano, Teruaki Koizumi
  • Patent number: 9818949
    Abstract: An organic compound with characteristics excelling in hole-injecting/transporting performance and having an electron blocking ability, a highly stable thin-film state, and excellent heat resistance is provided as material for an organic electroluminescent device of high efficiency and high durability, and the organic electroluminescent device of high efficiency and high durability is provided using this compound. The compound of a general formula (Chemical Formula 1) having a substituted acridan ring structure is used as a constituent material of at least one organic layer in the organic electroluminescent device that includes a pair of electrodes and one or more organic layers sandwiched between the pair of electrodes.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: November 14, 2017
    Assignee: Hodogaya Chemical Co., Ltd.
    Inventors: Norimasa Yokoyama, Makoto Nagaoka, Naoaki Kabasawa, Eiji Takahashi
  • Publication number: 20170234287
    Abstract: An internal combustion engine includes a spark plug which protrudes into a combustion chamber. The spark plug has a central electrode and a ground electrode, and is configured such that a spark is generated between the central electrode and the ground electrode by electrical discharge. The spark plug has a vortex generator that separates an air flow near the ground electrode from the ground electrode and generates a vortex at a downstream side. The central electrode and the ground electrode are placed in a manner such that a spark or a flame deformed by an air flow flowing between the central electrode and the ground electrode enters the trailing vortex, or the spark penetrates through the inside of the trailing vortex.
    Type: Application
    Filed: February 10, 2017
    Publication date: August 17, 2017
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Ryou MASUDA, Takayuki FUYUTO, Makoto NAGAOKA
  • Patent number: 9732036
    Abstract: [Problem]An organic compound of excellent characteristics is provided that exhibits excellent hole-injecting/transporting performance with electron blocking ability, and that has high stability in the thin-film state and high luminous efficiency, the organic compound being provided as material for an organic electroluminescent device having high efficiency and high durability. The invention also provides a high-efficient, high-durable organic electroluminescent device using the compound. [Means for Resolution] The compound is of the following general formula having a carbazole ring structure. The organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, and the compound is used as a constituent material of at least one organic layer.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: August 15, 2017
    Assignee: Hodogaya Chemical Co., Ltd.
    Inventors: Norimasa Yokoyama, Makoto Nagaoka, Kazunori Togashi, Shigeru Kusano
  • Patent number: 9705099
    Abstract: An improved OLED includes an emissive layer disposed between a cathode and an anode where the emissive layer includes a multi-component host material and a phosphorescent emitter material.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: July 11, 2017
    Assignees: Universal Display Corporation, Hodogaya Chemical Co., Ltd.
    Inventors: Vadim Adamovich, Hitoshi Yamamoto, Michael S. Weaver, Norimasa Yokoyama, Makoto Nagaoka, Naoaki Kabasawa
  • Patent number: 9705092
    Abstract: An improved OLED includes an emitter layer disposed between a cathode and an anode where the emitter layer includes a host material and a phosphorescent emitter material. A first hole transport layer is disposed between the emitter layer and the anode and a second hole transport layer is disposed between the first hole transport layer and the anode. The first hole transport layer includes a first hole transport material that is a carbazole type compound and the second hole transport layer includes a second hole transport material that is different from the first hole transport material. The phosphorescent emitter material includes a phosphorescent organometallic compound that is a heteroleptic compound represented by the formula L2MX, LL?MX, LL?L?M, or LMXX?, wherein L, L?, L?, X, and X? are inequivalent, bidentate ligands and M is a metal that forms octahedral complexes, wherein L, L?, and L? are monoanionic inequivalent bidentate ligands coordinated to M through an sp2 hybridized carbon and a heteroatom.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: July 11, 2017
    Assignees: Universal Display Corporation, Hodogaya Chemical Co., Ltd.
    Inventors: Hitoshi Yamamoto, Michael Stewart Weaver, Norimasa Yokoyama, Makoto Nagaoka, Naoaki Kabasawa
  • Patent number: 9564600
    Abstract: A compound having an indolocarbazole ring structure is represented by the following general formula (1), and is used as a material for forming a highly efficient and highly durable organic electroluminescent device. The compound features excellent hole injection/transport capability, has electron blocking power and is highly stable in the form of a thin film. wherein, A is a divalent aromatic hydrocarbon group or aromatic heterocyclic group, Ar1 to Ar4 are monovalent aromatic hydrocarbon groups or aromatic heterocyclic groups, and R1 to R9 are hydrogen atoms, deuterium atoms, fluorine atoms, chlorine atoms, cyano groups, nitro groups, alkyl groups, cycloalkyl groups, alkenyl groups, alkyloxy groups, cycloalkyloxy groups, aromatic hydrocarbon groups, aromatic heterocyclic groups or aryloxy groups.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: February 7, 2017
    Assignee: HODOGAYA CHEMICAL CO., LTD.
    Inventors: Norimasa Yokoyama, Makoto Nagaoka, Sawa Izumi, Hiroshi Ookuma, Shuichi Hayashi
  • Publication number: 20160351823
    Abstract: According to the present invention, there are provided a benzofuroindole derivative represented by the following general formula (1); and an organic EL device comprising a pair of electrodes and at least one organic layer sandwiched therebetween, wherein the above derivative is used as a constituent material for the at least one organic layer. The benzofuroindole derivative of the present invention is useful as a constituent material for a hole injection layer, a hole transport layer, an electron blocking layer or a luminous layer of an organic EL device. It has excellent electron blocking capability, is stable in a thin film state, and excels in heat resistance. Thus, the organic EL device of the present invention, prepared using such a benzofuroindole derivative, is high in luminous efficiency and power efficiency, thereby lowering the practical driving voltage of the device. The device can also lower light emission starting voltage, and improve durability.
    Type: Application
    Filed: February 12, 2015
    Publication date: December 1, 2016
    Applicant: HODOGAYA CHEMICAL CO., LTD.
    Inventors: Makoto NAGAOKA, Kouki KASE, Keigo NAITO, Kanae OTSUKA, Shigeru KUSANO