Patents by Inventor Naohiro FUJINUMA
Naohiro FUJINUMA 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: 20230407494Abstract: A carbon dioxide reduction device of the present invention is a carbon dioxide reduction device comprising a first electrode; at least any one of an electrolyte solution and an ion conducting membrane; and a second electrode, wherein the first electrode is a porous electrode having a porous carbon, and the porous carbon has at least one type of metal-nonmetal element bond represented by M-R, in which M represents a metal element of Groups 4 to 15, and R represents a nonmetal element of Groups 14 to 16.Type: ApplicationFiled: August 28, 2023Publication date: December 21, 2023Applicant: SEKISUI CHEMICAL CO., LTD.Inventor: Naohiro FUJINUMA
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Patent number: 11788195Abstract: A carbon dioxide reduction device of the present invention is a carbon dioxide reduction device comprising a first electrode; at least any one of an electrolyte solution and an ion conducting membrane; and a second electrode, wherein the first electrode is a porous electrode having a porous carbon, and the porous carbon has at least one type of metal-nonmetal element bond represented by M-R, in which M represents a metal element of Groups 4 to 15, and R represents a nonmetal element of Groups 14 to 16.Type: GrantFiled: September 12, 2018Date of Patent: October 17, 2023Assignee: SEKISUI CHEMICAL CO., LTD.Inventor: Naohiro Fujinuma
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Publication number: 20230279561Abstract: An electrochemical cell includes: a cathode having a first catalyst that reduces carbon dioxide to carbon monoxide; an anode; an electrolyte solution containing a reactant and an electrolyte; and a second catalyst that synthesizes a carbonyl compound from the carbon monoxide and the reactant.Type: ApplicationFiled: February 9, 2023Publication date: September 7, 2023Applicant: SEKISUI CHEMICAL CO., LTD.Inventor: Naohiro FUJINUMA
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Publication number: 20230095968Abstract: The electrochemical cell is an electrochemical cell which electrochemically synthesizes at least one carbonyl compound selected from the group consisting of organic carbonates and organic oxalates from carbon monoxide, and has an electrolyte solution containing a redox species and a catalyst, and an electrode.Type: ApplicationFiled: September 8, 2022Publication date: March 30, 2023Applicant: SEKISUI CHEMICAL CO., LTD.Inventor: Naohiro FUJINUMA
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Patent number: 11482672Abstract: A solid junction-type photoelectric conversion element (10) including a first conductive layer (2), an electric power generation layer (4), and a second conductive layer (6), which are laminated in this order, wherein the electric power generation layer (4) comprises: a perovskite compound represented by a composition formula ABX3, formed of an organic cation A, a metal cation B and a halide anion X, and a compound Z having no perovskite structure.Type: GrantFiled: August 2, 2017Date of Patent: October 25, 2022Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Naohiro Fujinuma, Junichiro Anzai, Sachiko Satou
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Patent number: 11390955Abstract: There is provided an electrochemical cell, including a cathode, an anode, and an ion exchange membrane disposed between the cathode and the anode, wherein the cathode includes a first catalyst capable of catalyzing a reduction reaction for reducing carbon dioxide into carbon monoxide, and the anode includes a second catalyst capable of catalyzing a carbonylation reaction for producing a carbonate compound from carbon monoxide and an alcohol compound.Type: GrantFiled: August 7, 2019Date of Patent: July 19, 2022Assignee: SEKISUI CHEMICAL CO., LTD.Inventor: Naohiro Fujinuma
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Patent number: 11387421Abstract: The present invention aims to provide a solar cell having high durability against deterioration due to moisture ingress from the side surfaces. The solar cell 10 of the present invention includes: first and second electrodes 12 and 17; a perovskite layer 14 provided between the first and second electrodes 12 and 17 and containing an organic-inorganic perovskite compound (A) represented by the formula RMX3 where R is an organic molecule, M is a metal atom, and X is a halogen atom; and a side-surface-protecting layer 15 provided on a peripheral side of the perovskite layer 14 to coat at least part of a side surface of the perovskite layer 14, the side-surface-protecting layer 15 containing at least one selected from the group consisting of a metal halide (B1) and an organometal halide (B2) or containing an organohalide (C).Type: GrantFiled: March 29, 2018Date of Patent: July 12, 2022Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Yuuichirou Fukumoto, Naohiro Fujinuma, Junichiro Anzai, Akinobu Hayakawa, Tetsuya Kurebayashi, Tetsuya Aita, Tomohito Uno
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Patent number: 11335514Abstract: The present invention aims to provide a solar cell that includes a photoelectric conversion layer containing an organic-inorganic perovskite compound and that can exhibit high photoelectric conversion efficiency and high heat resistance. Provided is a solar cell including, in the stated order: a cathode; a photoelectric conversion layer; and an anode, the photoelectric conversion layer containing an organic-inorganic perovskite compound represented by the formula R-M-X3 where R is an organic molecule, M is a metal atom, and X is a halogen atom or a chalcogen atom, and a polymer having an acid dissociation constant pKa of 3 or less.Type: GrantFiled: September 20, 2018Date of Patent: May 17, 2022Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Akinobu Hayakawa, Tetsuya Kurebayashi, Naohiro Fujinuma, Masako Okamoto
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Publication number: 20220033979Abstract: An organic carbonate synthesis catalyst for electrochemically synthesizing an organic carbonate from carbon monoxide, comprises: an active particle containing a metal element; and a porous carbon supporting the active particle.Type: ApplicationFiled: March 22, 2021Publication date: February 3, 2022Applicant: SEKISUI CHEMICAL CO., LTD.Inventor: Naohiro FUJINUMA
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Publication number: 20220010436Abstract: Provided is a synthesis method comprising a first step of producing a carbonate compound from carbon monoxide and an alcohol-based compound at an anode of a first electrochemical cell comprising a cathode and the anode, and a second step of synthesizing a first product by a dealcoholization reaction of the carbonate compound, wherein an alcohol-based compound eliminated in the second step is recycled in the first step.Type: ApplicationFiled: September 23, 2021Publication date: January 13, 2022Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Naohiro FUJINUMA, Kenichi SHINMEI
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Patent number: 11193212Abstract: Provided is a synthesis method comprising a first step of producing a carbonate compound from carbon monoxide and an alcohol-based compound at an anode of a first electrochemical cell comprising a cathode and the anode, and a second step of synthesizing a first product by a dealcoholization reaction of the carbonate compound, wherein an alcohol-based compound eliminated in the second step is recycled in the first step.Type: GrantFiled: September 25, 2018Date of Patent: December 7, 2021Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Naohiro Fujinuma, Kenichi Shinmei
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Patent number: 11105006Abstract: A carbon dioxide reduction apparatus comprises a first electrochemical compartment provided with a first electrode, a second electrochemical compartment provided with a second electrode, an ion conducting membrane which demarcates the first electrochemical compartment from the second electrochemical compartment, and a first connecting path which connects the first electrochemical compartment with the second electrochemical compartment. The first electrode contains a first catalyst which catalyzes a reduction of carbon dioxide to a reduced product, and the second electrode contains a second catalyst which catalyzes a reaction between the reduced product and a reactant. The first connecting path is a connecting path which allows the reduced product in the first electrochemical compartment to flow out to the second electrochemical compartment.Type: GrantFiled: March 22, 2018Date of Patent: August 31, 2021Assignee: SEKISUI CHEMICAL CO., LTD.Inventor: Naohiro Fujinuma
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Publication number: 20210222308Abstract: The present invention provides a catalyst, a carbon dioxide reduction electrode and a laminated assembly. The catalyst is obtained by sintering a mixture including a metal derivative, a pyridine derivative and a carbon compound. The carbon dioxide reduction electrode includes the catalyst and an electrode base material to which the catalyst is attached. The laminated assembly includes, for example, a first electrode, an ion exchange membrane and a second electrode in the order presented, and the first electrode is the carbon dioxide reduction electrode.Type: ApplicationFiled: January 21, 2021Publication date: July 22, 2021Inventor: Naohiro FUJINUMA
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Publication number: 20210193929Abstract: A solid junction-type photoelectric conversion element (10) including a first conductive layer (2), an electric power generation layer (4), and a second conductive layer (6), which are laminated in this order, wherein the electric power generation layer (4) comprises: a perovskite compound represented by a composition formula ABX3, formed of an organic cation A, a metal cation B and a halide anion X, and a compound Z having no perovskite structure.Type: ApplicationFiled: August 2, 2017Publication date: June 24, 2021Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Naohiro FUJINUMA, Junichiro ANZAI, Sachiko SATOU
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Publication number: 20210164117Abstract: A carbon dioxide reduction device of the present invention is a carbon dioxide reduction device comprising a first electrode; at least any one of an electrolyte solution and an ion conducting membrane; and a second electrode, wherein the first electrode is a porous electrode having a porous carbon, and the porous carbon has at least one type of metal-nonmetal element bond represented by M-R, in which M represents a metal element of Groups 4 to 15, and R represents a nonmetal element of Groups 14 to 16.Type: ApplicationFiled: September 12, 2018Publication date: June 3, 2021Applicant: SEKISUI CHEMICAL CO., LTD.Inventor: Naohiro FUJINUMA
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Publication number: 20210040626Abstract: There is provided an electrochemical cell, including a cathode, an anode, and an ion exchange membrane disposed between the cathode and the anode, wherein the cathode includes a first catalyst capable of catalyzing a reduction reaction for reducing carbon dioxide into carbon monoxide, and the anode includes a second catalyst capable of catalyzing a carbonylation reaction for producing a carbonate compound from carbon monoxide and an alcohol compound.Type: ApplicationFiled: August 7, 2019Publication date: February 11, 2021Applicant: SEKISUI CHEMICAL CO., LTD.Inventor: Naohiro FUJINUMA
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Publication number: 20200161060Abstract: The present invention aims to provide a solar cell that includes a photoelectric conversion layer containing an organic-inorganic perovskite compound and that can exhibit high photoelectric conversion efficiency and high heat resistance. Provided is a solar cell including, in the stated order: a cathode; a photoelectric conversion layer; and an anode, the photoelectric conversion layer containing an organic-inorganic perovskite compound represented by the formula R-M-X3 where R is an organic molecule, M is a metal atom, and X is a halogen atom or a chalcogen atom, and a polymer having an acid dissociation constant pKa of 3 or less.Type: ApplicationFiled: September 20, 2018Publication date: May 21, 2020Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Akinobu HAYAKAWA, Tetsuya KUREBAYASHI, Naohiro FUJINUMA, Masako OKAMOTO
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Publication number: 20200095692Abstract: Provided is a synthesis method comprising a first step of producing a carbonate compound from carbon monoxide and an alcohol-based compound at an anode of a first electrochemical cell comprising a cathode and the anode, and a second step of synthesizing a first product by a dealcoholization reaction of the carbonate compound, wherein an alcohol-based compound eliminated in the second step is recycled in the first step.Type: ApplicationFiled: September 25, 2018Publication date: March 26, 2020Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Naohiro FUJINUMA, Kenichi SHINMEI
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Publication number: 20200013974Abstract: The present invention aims to provide a solar cell having high durability against deterioration due to moisture ingress from the side surfaces. The solar cell 10 of the present invention includes: first and second electrodes 12 and 17; a perovskite layer 14 provided between the first and second electrodes 12 and 17 and containing an organic-inorganic perovskite compound (A) represented by the formula RMX3 where R is an organic molecule, M is a metal atom, and X is a halogen atom; and a side-surface-protecting layer 15 provided on a peripheral side of the perovskite layer 14 to coat at least part of a side surface of the perovskite layer 14, the side-surface-protecting layer 15 containing at least one selected from the group consisting of a metal halide (B1) and an organometal halide (B2) or containing an organohalide (C).Type: ApplicationFiled: March 29, 2018Publication date: January 9, 2020Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yuuichirou FUKUMOTO, Naohiro FUJINUMA, Junichiro ANZAI, Akinobu HAYAKAWA, Tetsuya KUREBAYASHI, Tetsuya AlTA, Tomohito UNO
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Publication number: 20190292668Abstract: A carbon dioxide reduction apparatus comprises a first electrochemical compartment provided with a first electrode, a second electrochemical compartment provided with a second electrode, an ion conducting membrane which demarcates the first electrochemical compartment from the second electrochemical compartment, and a first connecting path which connects the first electrochemical compartment with the second electrochemical compartment. The first electrode contains a first catalyst which catalyzes a reduction of carbon dioxide to a reduced product, and the second electrode contains a second catalyst which catalyzes a reaction between the reduced product and a reactant. The first connecting path is a connecting path which allows the reduced product in the first electrochemical compartment to flow out to the second electrochemical compartment.Type: ApplicationFiled: March 22, 2018Publication date: September 26, 2019Applicant: SEKISUI CHEMICAL CO., LTD.Inventor: Naohiro FUJINUMA