Patents by Inventor Yuki NAKAMA
Yuki NAKAMA 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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Publication number: 20250050296Abstract: Provided are a reactor that can operate stably without being subject to restrictions on heating temperature, a gas production apparatus (that is, an industrially advantageous gas production apparatus) having the reactor, a gas production system, and a gas production method. Each of reactors 4a and 4b includes a container 41 having a single internal space 410 through which gas is capable of passing and a reducing agent layer 42 with which the internal space 410 is filled and which is configured by a reducing agent 4R reducing carbon dioxide to carbon monoxide. When the container 41 is cut in a direction orthogonal to a passage direction of the gas, a proportion of a cross-sectional area of the reducing agent layer 42 to a cross-sectional area of the internal space 410 is equal to or greater than 60%.Type: ApplicationFiled: July 11, 2022Publication date: February 13, 2025Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yuki NAKAMA, Masaki NAKAMURA, Tsuoshi TONO
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Publication number: 20250033013Abstract: A gas production device that makes it possible to raise the temperature of a reaction unit by separating a removal unit from a reactor. The device has at least two reactors and a removal unit. The two reactors are connected in series and are configured to supply an oxidizing gas containing carbon dioxide, and a reducing gas containing a reducing substance. Each of the reactors accommodates a metal and/or a metal oxide which promotes reduction of the carbon dioxide or the reaction between the carbon dioxide and the reducing substance, thereby generating a valuable carbon substance. The removal unit is connected between the two reactors and has a phase separation mechanism that carries out phase separation of a gaseous component and a separated component including at least one of a liquid component and a solid component produced through cooling, thereby removing products derived from the gas supplied to the reactors.Type: ApplicationFiled: November 29, 2022Publication date: January 30, 2025Inventors: Tsuyoshi Tono, Masaki Nakamura, Yuki Nakama
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Publication number: 20240416309Abstract: Provided are a gas production apparatus (that is, an industrially advantageous gas production apparatus), a gas production system, and a gas production method that can easily and accurately determine the timing to end a reaction and can operate stably. A gas production apparatus 1 includes: reactors 4a and 4b each of which includes a container 41 through which a substrate gas is capable of passing and a reducing agent layer (packed bed) 42 with which the container 41 is filled and which includes a metal oxide that exchanges oxygen elements with the substrate gas by an exothermic reaction or an endothermic reaction; and a plurality of temperature sensors 4T1 to 4T4 that are connected to each of the reactors 4a and 4b and measure temperatures of a plurality of measurement points of the packed bed 42 along a passage direction of the substrate gas, respectively.Type: ApplicationFiled: July 11, 2022Publication date: December 19, 2024Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Masaki NAKAMURA, Yuki NAKAMA, Tsuyoshi TONO
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Publication number: 20240286101Abstract: A gas manufacturing apparatus and a gas manufacturing system capable of continuously and stably manufacturing a produced gas containing carbon monoxide from a raw material gas containing carbon dioxide are provided. A gas manufacturing apparatus 1 is an apparatus that manufactures a produced gas containing carbon monoxide by bringing a raw material gas containing carbon dioxide into contact with a reducing agent containing a metal oxide that reduces carbon dioxide. The gas manufacturing apparatus includes a reaction section 4 that includes a plurality of reactors 4a and 4b and a reducing agent arranged in the reactors 4a and 4b, and that is capable of switching between the raw material gas and the reducing gas to be supplied to each of the reactors 4a and 4b, and a reducing agent heating section 12 that adjusts the temperature of the reducing agent when the raw material gas or the reducing gas is brought into contact with the reducing agent.Type: ApplicationFiled: August 4, 2020Publication date: August 29, 2024Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yuki NAKAMA, Rasika DASANAYAKE ALUTHGE
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Patent number: 12018116Abstract: Provided is a hydrogenated ring-opened polymer having excellent ductility. The hydrogenated ring-opened polymer includes 90 mass % or more of norbornene-derived structural units. The proportion of meso diads of cis-structural units (I) of formula (I), shown below, included among the norbornene-derived structural units is not less than 0% and not more than 30% or is not less than 70% and not more than 100%. Trans-structural units (II) of formula (II), shown below, constitute a proportion of not less than 0.5% and not more than 20% among the total of the cis-structural units (I) of formula (I) and the trans-structural units (II) of formula (II).Type: GrantFiled: March 10, 2020Date of Patent: June 25, 2024Assignee: ZEON CORPORATIONInventors: Shigetaka Hayano, Hideyuki Kanda, Taichi Sawaguchi, Yuki Nakama
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Publication number: 20240059569Abstract: A gas production device 1 comprises a connection unit 2 for supplying an exhaust gas including carbon dioxide CO2, a reducing gas supply unit 3 that supplies a reducing gas including H2 that reduces a reducing agent 4R that has been brought into an oxidized state by contact with the carbon dioxide CO2, the reducing agent including a metal oxide that generates CO by reducing the carbon dioxide CO2, and a reaction unit 4 provided with a plurality of reactors 4a to 4d connected respectively to the connection unit 2 and the reducing gas supply unit 3, and with the educing agent 4R that is contained in each of the reactors 4a to 4d, in which the reaction unit 4 being capable of switching between the oxidizing gas and the reducing gas to be supplied to each of the reactors 4a to 4d.Type: ApplicationFiled: December 27, 2021Publication date: February 22, 2024Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Tsuyoshi TONO, Yuki NAKAMA, Masaki NAKAMURA
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Publication number: 20240017233Abstract: A gas production device and a gas production system capable of continuously and stably manufacturing a produced gas containing carbon monoxide from a raw material gas containing carbon dioxide are provided. A gas production device 1 manufactures a produced gas containing carbon monoxide by bringing a raw material gas containing carbon dioxide into contact with a reducing agent containing a metal oxide that reduces the carbon dioxide.Type: ApplicationFiled: August 4, 2020Publication date: January 18, 2024Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yuki NAKAMA, Rasika DASANAYAKE ALUTHGE, Masaki NAKAMURA, Taiyou MORI, Fiona MUKHERJEE
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Publication number: 20240010500Abstract: A gas production device and a gas production system capable of efficiently manufacturing a produced gas containing carbon monoxide from a raw material gas containing carbon dioxide are provided. The gas production device 1 is an apparatus that manufactures a produced gas containing carbon monoxide by bringing a raw material gas containing carbon dioxide into contact with a reductant that reduces the carbon dioxide.Type: ApplicationFiled: August 4, 2020Publication date: January 11, 2024Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yuki NAKAMA, Rasika DASANAYAKE ALUTHGE
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Publication number: 20230365414Abstract: A gas production apparatus and a gas production system capable of continuously and stably manufacturing a produced gas containing carbon monoxide from a raw material gas containing carbon dioxide are provided. A gas production apparatus 1 is an apparatus that manufactures a produced gas containing carbon monoxide by bringing a raw material gas containing carbon dioxide into contact with a reducing agent containing a metal oxide that reduces carbon dioxide. The gas production apparatus includes a reaction section 4 that includes a plurality of reactors 4a and 4b and a reducing agent arranged in the reactors 4a and 4b, and that is capable of switching between the raw material gas and the reducing gas to be supplied to each of the reactors 4a and 4b.Type: ApplicationFiled: August 4, 2020Publication date: November 16, 2023Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yuki NAKAMA, Rasika DASANAYAKE ALUTHGE
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Publication number: 20230365413Abstract: A gas manufacturing apparatus and a gas manufacturing system capable of efficiently manufacturing a produced gas containing carbon monoxide from a raw material gas containing carbon dioxide are provided. The gas manufacturing apparatus 1 manufactures a produced gas containing carbon monoxide by bringing a raw material gas containing carbon dioxide into contact with a reducing agent that reduces the carbon dioxide.Type: ApplicationFiled: August 4, 2020Publication date: November 16, 2023Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yuki NAKAMA, Rasika DASANAYAKE ALUTHGE
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Patent number: 11807712Abstract: Disclosed is a hydrogenated norbornene ring-opened polymer, wherein a proportion of a norbornene-derived repeating unit is 90% by mass or more, a meso diad fraction of the norbornene-derived repeating unit is 80% or more, and in an X-ray diffraction pattern measured at 25° C. using a CuK? radiation source, an X-ray diffraction peak is observed which has a peak top positioned in a diffraction angle (2?) range of 17° or more and 18° or less.Type: GrantFiled: March 20, 2019Date of Patent: November 7, 2023Assignee: ZEON CORPORATIONInventors: Yuki Nakama, Shigetaka Hayano
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Patent number: 11479518Abstract: The method of the present invention for producing 1,3-butadiene includes: vaporizing an ethanol feedstock in a vaporizer (104), supplying the feedstock to two or more parallel first reactors (108) to convert ethanol into acetaldehyde in the presence of a first catalyst; supplying a resulting intermediate gas to a second reactor (110) to convert ethanol and acetaldehyde into 1,3-butadiene in the presence of a second catalyst; purifying a resulting crude gas containing 1,3-butadiene by a gas-liquid separator (112), a first distillation column (114), a fourth reactor (116), and a second distillation column (118); and supplying an oxygen-containing gas to at least one of the two or more parallel first reactors (108) under specific conditions, while discharging a carbon dioxide-containing gas from the first reactor (108), to thereby regenerate the first catalyst, while continuing the conversion reaction.Type: GrantFiled: July 6, 2020Date of Patent: October 25, 2022Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Noritoshi Yagihashi, Haruka Nishiyama, Yuki Nakama
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Patent number: 11472753Abstract: In the method of the present invention, 1,3-butadiene is produced by vaporizing an ethanol feedstock in a vaporizer (104), feeding the resulting into two or more parallel first reactors (108) to convert the ethanol to acetaldehyde in the presence of a first catalyst, supplying the resulting intermediate gas to a second reactor (110) to convert the ethanol and acetaldehyde to 1,3-butadiene in the presence of a second catalyst, purifying the resulting crude gas containing 1,3-butadiene by a gas-liquid separator (112), a first distillation column (114), a fourth reactor (116), a second distillation column (118), and mixing one of both of a part of the ethanol-containing gas and an acetaldehyde-containing gas obtained in the second distillation column (118) are mixed with the intermediate gas, thereby adjusting an ethanol/acetaldehyde molar ratio in the intermediate gas to 1 to 100.Type: GrantFiled: July 6, 2020Date of Patent: October 18, 2022Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Noritoshi Yagihashi, Haruka Nishiyama, Yuki Nakama
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Publication number: 20220307096Abstract: System and method for producing steel is provided that efficiently reduce carbon dioxide emissions.Type: ApplicationFiled: August 4, 2020Publication date: September 29, 2022Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Rasika DASANAYAKE ALUTHGE, Katsuo MATSUZAKA, Kenichi SHINMEI, Yuki NAKAMA
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Publication number: 20220305439Abstract: Provision of a gas production apparatus that can stably produce a product gas with carbon monoxide as its main component from a separated gas including carbon dioxide as a main component.Type: ApplicationFiled: August 4, 2020Publication date: September 29, 2022Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yuki NAKAMA, Rasika DASANAYAKE ALUTHGE, Masaki NAKAMURA
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Patent number: 11427517Abstract: In the method of the present invention, 1,3-butadiene is produced by vaporizing an ethanol feedstock in a vaporizer (104), feeding the resulting into two or more parallel first reactors (108) to convert the ethanol to acetaldehyde in the presence of a first catalyst, supplying the resulting intermediate gas to a second reactor (110) to convert the ethanol and acetaldehyde to 1,3-butadiene in the presence of a second catalyst, purifying the resulting crude gas containing 1,3-butadiene by a gas-liquid separator (112), a first distillation column (114), a fourth reactor (116), a second distillation column (118), and mixing one of both of a part of the ethanol-containing gas and an acetaldehyde-containing gas obtained in the second distillation column (118) are mixed with the intermediate gas, thereby adjusting an ethanol/acetaldehyde molar ratio in the intermediate gas to 1 to 100.Type: GrantFiled: July 6, 2020Date of Patent: August 30, 2022Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Noritoshi Yagihashi, Haruka Nishiyama, Yuki Nakama
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Publication number: 20220259120Abstract: The method of the present invention for producing 1,3-butadiene includes: vaporizing an ethanol feedstock in a vaporizer (104), supplying the feedstock to two or more parallel first reactors (108) to convert ethanol into acetaldehyde in the presence of a first catalyst; supplying a resulting intermediate gas to a second reactor (110) to convert ethanol and acetaldehyde into 1,3-butadiene in the presence of a second catalyst; purifying a resulting crude gas containing 1,3-butadiene by a gas-liquid separator (112), a first distillation column (114), a fourth reactor (116), and a second distillation column (118); and supplying an oxygen-containing gas to at least one of the two or more parallel first reactors (108) under specific conditions, while discharging a carbon dioxide-containing gas from the first reactor (108), to thereby regenerate the first catalyst, while continuing the conversion reaction.Type: ApplicationFiled: July 6, 2020Publication date: August 18, 2022Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Noritoshi YAGIHASHI, Haruka NISHIYAMA, Yuki NAKAMA
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Publication number: 20220204424Abstract: In the method of the present invention, 1,3-butadiene is produced by vaporizing an ethanol feedstock in a vaporizer (104), feeding the resulting into two or more parallel first reactors (108) to convert the ethanol to acetaldehyde in the presence of a first catalyst, supplying the resulting intermediate gas to a second reactor (110) to convert the ethanol and acetaldehyde to 1,3-butadiene in the presence of a second catalyst, purifying the resulting crude gas containing 1,3-butadiene by a gas-liquid separator (112), a first distillation column (114), a fourth reactor (116), a second distillation column (118), and mixing one of both of a part of the ethanol-containing gas and an acetaldehyde-containing gas obtained in the second distillation column (118) are mixed with the intermediate gas, thereby adjusting an ethanol/acetaldehyde molar ratio in the intermediate gas to 1 to 100.Type: ApplicationFiled: July 6, 2020Publication date: June 30, 2022Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Noritoshi YAGIHASHI, Haruka NISHIYAMA, Yuki NAKAMA
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Publication number: 20220153924Abstract: Provided is a hydrogenated ring-opened polymer having excellent ductility. The hydrogenated ring-opened polymer includes 90 mass % or more of norbornene-derived structural units. The proportion of meso diads of cis-structural units (I) of formula (I), shown below, included among the norbornene-derived structural units is not less than 0% and not more than 30% or is not less than 70% and not more than 100%. Trans-structural units (II) of formula (II), shown below, constitute a proportion of not less than 0.5% and not more than 20% among the total of the cis-structural units (I) of formula (I) and the trans-structural units (II) of formula (II).Type: ApplicationFiled: March 10, 2020Publication date: May 19, 2022Applicant: ZEON CORPORATIONInventors: Shigetaka HAYANO, Hideyuki KANDA, Taichi SAWAGUCHI, Yuki NAKAMA
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Publication number: 20200399422Abstract: Disclosed is a hydrogenated norbornene ring-opened polymer, wherein a proportion of a norbornene-derived repeating unit is 90% by mass or more, a meso diad fraction of the norbornene-derived repeating unit is 80% or more, and in an X-ray diffraction pattern measured at 25° C. using a CuK? radiation source, an X-ray diffraction peak is observed which has a peak top positioned in a diffraction angle (2?) range of 17° or more and 18° or less.Type: ApplicationFiled: March 20, 2019Publication date: December 24, 2020Applicant: ZEON CORPORATIONInventors: Yuki NAKAMA, Shigetaka HAYANO