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).

  • Patent number: 11105006
    Abstract: 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: Grant
    Filed: March 22, 2018
    Date of Patent: August 31, 2021
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventor: Naohiro Fujinuma
  • Publication number: 20210222308
    Abstract: 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: Application
    Filed: January 21, 2021
    Publication date: July 22, 2021
    Inventor: Naohiro FUJINUMA
  • Publication number: 20210193929
    Abstract: 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: Application
    Filed: August 2, 2017
    Publication date: June 24, 2021
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Naohiro FUJINUMA, Junichiro ANZAI, Sachiko SATOU
  • Publication number: 20210164117
    Abstract: 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: Application
    Filed: September 12, 2018
    Publication date: June 3, 2021
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventor: Naohiro FUJINUMA
  • Publication number: 20210040626
    Abstract: 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: Application
    Filed: August 7, 2019
    Publication date: February 11, 2021
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventor: Naohiro FUJINUMA
  • Publication number: 20200161060
    Abstract: 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: Application
    Filed: September 20, 2018
    Publication date: May 21, 2020
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Akinobu HAYAKAWA, Tetsuya KUREBAYASHI, Naohiro FUJINUMA, Masako OKAMOTO
  • Publication number: 20200095692
    Abstract: 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: Application
    Filed: September 25, 2018
    Publication date: March 26, 2020
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Naohiro FUJINUMA, Kenichi SHINMEI
  • Publication number: 20200013974
    Abstract: 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: Application
    Filed: March 29, 2018
    Publication date: January 9, 2020
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Yuuichirou FUKUMOTO, Naohiro FUJINUMA, Junichiro ANZAI, Akinobu HAYAKAWA, Tetsuya KUREBAYASHI, Tetsuya AlTA, Tomohito UNO
  • Publication number: 20190292668
    Abstract: 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: Application
    Filed: March 22, 2018
    Publication date: September 26, 2019
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventor: Naohiro FUJINUMA
  • Publication number: 20190019843
    Abstract: The present invention provides a solid junction photoelectric conversion element module including a first photoelectric conversion element, a second photoelectric conversion element, a connection portion, and a base material. The first photoelectric conversion element and the second photoelectric conversion element are disposed adjacently to each other on a surface of the base material. The first photoelectric conversion element sequentially includes a first conductive layer, a power generation layer including a perovskite layer, and a second conductive layer, and the first conductive layer of the first photoelectric conversion element is in contact with the base material. The second photoelectric conversion element sequentially includes a first conductive layer, a power generation layer including a perovskite layer, and a second conductive layer, and the first conductive layer of the second photoelectric conversion element is in contact with the base material.
    Type: Application
    Filed: February 17, 2017
    Publication date: January 17, 2019
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Naohiro FUJINUMA, Junichiro ANZAI
  • Publication number: 20190013155
    Abstract: A solid junction-type photovoltaic device including: a substrate; a first conductive layer; a power generation layer including a perovskite layer; and a conductive material including a second conductive layer, which are laminated in this order, wherein the conductive material has a self-supporting property.
    Type: Application
    Filed: February 17, 2017
    Publication date: January 10, 2019
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Naohiro FUJINUMA, Junichiro ANZAI
  • Publication number: 20160012974
    Abstract: A method for producing a semiconductor film, comprising spraying raw material particles to a substrate to form a semiconductor film on the substrate, wherein the raw material particles comprise semiconductor particles each having adsorbed on its surface an aggregation-suppressive substance which suppresses aggregation of the semiconductor particles.
    Type: Application
    Filed: July 4, 2014
    Publication date: January 14, 2016
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Tomoaki KATAGIRI, Naohiro FUJINUMA, Shunsuke KUNUGI, Setsuo NAKAJIMA