Patents by Inventor Takayuki Nagasawa

Takayuki Nagasawa 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: 11852974
    Abstract: An object of the present invention is to provide a conductive polymer composition which has good filterability and good film formability of a flat film on an electron beam resist and can be suitably used for an antistatic film for electron beam resist writing, showing excellent antistatic property in the electron beam writing process due to the property of low volume resistivity (?·cm), and, reducing an effect on lithography by making an effect of an acid diffused from the film minimum, and further having excellent peelability by H2O or an alkaline developer after writing.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: December 26, 2023
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takayuki Nagasawa, Keiichi Masunaga, Masaaki Kotake, Satoshi Watanabe
  • Publication number: 20230168584
    Abstract: A conductive polymer composition containing: (A) a polyaniline-based conductive polymer having a repeating unit represented by following general formula (1); and (B) polymer having structure represented by following general formula (2). In formulae, each of R1 to R4 represents hydrogen atom, acidic group, hydroxy group, alkoxy group, carboxy group, nitro group, halogen atom, or hydrocarbon group, R5 and R6 each independently represent a hydrogen atom, linear, branched, or cyclic alkyl group having 1-10 carbon atoms or a hydrocarbon group containing a hetero atom, Xa- represents anion, and “a” represents valence. An object of the invention provides a conductive polymer composition which has good filterability and film-formability of flat film on electron beam resist and can be used suitably for antistatic film for electron beam resist writing showing excellent antistatic property in electron beam writing process, and, reducing effect of acid diffused from film to minimum, and also having excellent peelability.
    Type: Application
    Filed: November 18, 2022
    Publication date: June 1, 2023
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takayuki NAGASAWA, Jun HATAKEYAMA
  • Publication number: 20230159766
    Abstract: A conductive polymer composition containing: a composite containing a ?-conjugated polymer (A) and a polymer (B) shown by the following general formula (2); H2O (D) for dispersing the composite; and a water-soluble organic solvent (C). This provides a composition which has favorable filterability and film formability, and which is capable of relieving acidity and forming a conductive film with high transparency. Moreover, since the H2O dispersion of the conductive polymer compound is mixed with an organic solvent, the surface tension and the contact angle are so low that leveling property on a substrate is imparted. The composition is usable in droplet-coating methods. Since an organic solvent having a higher boiling point than H2O is used as the organic solvent, the composition can avoid solid content precipitation around a nozzle and solid content precipitation due to drying between ejecting the liquid material from a nozzle tip and landing on a substrate.
    Type: Application
    Filed: March 24, 2021
    Publication date: May 25, 2023
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takayuki NAGASAWA, Jun HATAKEYAMA
  • Publication number: 20220332957
    Abstract: An object is to obtain a composition capable of: forming a uniform film even by spray coating or even when the composition is applied in the form of ink for inkjet printing; and preventing light emission from a portion other than an ITO electrode surface when the film is mounted on an organic EL device and light is emitted from the device. A conductive polymer composition contains: a composite containing a ?-conjugated polymer (A) and a polymer (B) shown by a general formula (1); H2O (D) for dispersing the composite; a water-soluble organic solvent (C); and a compound (E) shown by a general formula (2). The electric conductivity of a film with a thickness of 20 to 200 nm formed from the conductive polymer composition is less than 1.00E-05 S/cm.
    Type: Application
    Filed: March 22, 2022
    Publication date: October 20, 2022
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takayuki NAGASAWA, Jun HATAKEYAMA
  • Patent number: 11417842
    Abstract: Provided are a conductive polymer composite and composition which: improve water volatilization efficiency during film formation by incorporating a novel non-doping fluorinated unit in a dopant polymer; also reduce H+ generation by using the non-doping fluorinated unit in place of an acid unit generating extra acids; have good filterability and film formability; and are capable of forming a film having high transparency and good flatness when the film is formed. The conductive polymer composite is a composite containing: (A) a ?-conjugated polymer; and (B) a dopant polymer which is a copolymer containing a repeating unit “a” shown by the following general formula (1) and at least one repeating unit “b” selected from repeating units shown by the following general formulae (2-1) to (2-7).
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: August 16, 2022
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takayuki Nagasawa, Jun Hatakeyama
  • Patent number: 11286320
    Abstract: Polymerization reaction is performed using a polymerizable monomer shown by the following general formula (1) and at least one monomer selected from monomers each having a structure of a salt among a lithium salt, a sodium salt, a potassium salt, and a nitrogen compound salt of a fluorosulfonic acid or the like; then, the structure of the salt of the repeating unit of a polymer obtained by the polymerization reaction is changed to the fluorosulfonic acid or the like by ion exchange. Thus, the present invention provides a polymer compound for a conductive polymer and a method for producing the polymer compound which is suitably used as a dopant for a fuel cell and a conductive material, and which is a copolymer containing a repeating unit of styrene having a 3,3,3-trifluoro-2-hydroxy-2-trifluoromethylisobutyl ether group, and a repeating unit having any of a fluorosulfonic acid, a fluorosulfonimide group, and a n-carbonyl-fluoro-sulfonamide group.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: March 29, 2022
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Jun Hatakeyama, Takayuki Nagasawa, Koji Hasegawa, Masayoshi Sagehashi, Masahiro Fukushima
  • Patent number: 11208509
    Abstract: A polymer compound having a weight average molecular weight in the range of 1,000 to 500,000, and contains one or more repeating units represented by formula (1) and one or more repeating units represented by formula (2): R1 represents a hydrogen atom or a methyl group; Rf1 represents a linear or branched alkyl group having 1 to 4 carbon atoms or a phenyl group, and has at least one fluorine atom or a trifluoromethyl group in Rf1; Z1 represents a single bond, an arylene group having 6 to 12 carbon atoms or —C(?O)—O—R2—; R2 represents a linear, branched or cyclic alkylene group having 1 to 12 carbon atoms, an arylene group having 6 to 10 carbon atoms or an alkenylene group having 2 to 10 carbon atoms, and may have an ether group, a carbonyl group or an ester group in R2; and “a” is 0<a?1.0, and “b” is 0<b<1.0.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: December 28, 2021
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Jun Hatakeyama, Takayuki Fujiwara, Koji Hasegawa, Takayuki Nagasawa
  • Publication number: 20210380738
    Abstract: An object is to obtain a conductive polymer composition having favorable filterability and film formability, and being capable of relieving acidity, forming a conductive film with high transparency, and imparting leveling property on a substrate, the composition being applicable in droplet-coating methods, such as spray coating and inkjet printing. The conductive polymer composition contains: a composite containing a ?-conjugated polymer (A) and a polymer (B) shown by the following general formula (1); H2O (D) for dispersing the composite; and a water-soluble organic solvent (C).
    Type: Application
    Filed: April 19, 2021
    Publication date: December 9, 2021
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takayuki NAGASAWA, Jun HATAKEYAMA
  • Patent number: 10851188
    Abstract: A polymer compound for a conductive polymer contains one or more kinds of repeating units “a” represented by the following general formula (1) and has a weight average molecular weight in the range of 1,000 to 500,000, R1 represents a hydrogen atom or a methyl group; Rf1 represents a linear or branched alkyl group having 1 to 4 carbon atoms or a phenyl group, and has at least one fluorine atom or a trifluoromethyl group in Rf1; Z1 represents a single bond, an arylene group having 6 to 12 carbon atoms or —C(?O)—O—R2—; R2 represents a linear, branched or cyclic alkylene group having 1 to 12 carbon atoms, an arylene group having 6 to 10 carbon atoms or an alkenylene group having 2 to 10 carbon atoms, and may have an ether group, a carbonyl group or an ester group in R2; and “a” is 0<a?1.0.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: December 1, 2020
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Jun Hatakeyama, Takayuki Fujiwara, Koji Hasegawa, Takayuki Nagasawa
  • Publication number: 20200292941
    Abstract: An object of the present invention is to provide a conductive polymer composition which has good filterability and good film formability of a flat film on an electron beam resist and can be suitably used for an antistatic film for electron beam resist writing, showing excellent antistatic property in the electron beam writing process due to the property of low volume resistivity (?·cm), and, reducing an effect on lithography by making an effect of an acid diffused from the film minimum, and further having excellent peelability by H2O or an alkaline developer after writing.
    Type: Application
    Filed: February 26, 2020
    Publication date: September 17, 2020
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takayuki NAGASAWA, Keiichi MASUNAGA, Masaaki KOTAKE, Satoshi WATANABE
  • Publication number: 20200291145
    Abstract: A polymer compound having a weight average molecular weight in the range of 1,000 to 500,000, and contains one or more repeating units represented by formula (1) and one or more repeating units represented by formula (2): R1 represents a hydrogen atom or a methyl group; Rf1 represents a linear or branched alkyl group having 1 to 4 carbon atoms or a phenyl group, and has at least one fluorine atom or a trifluoromethyl group in Rf1; Z1 represents a single bond, an arylene group having 6 to 12 carbon atoms or —C(?O)—O—R2—; R2 represents a linear, branched or cyclic alkylene group having 1 to 12 carbon atoms, an arylene group having 6 to 10 carbon atoms or an alkenylene group having 2 to 10 carbon atoms, and may have an ether group, a carbonyl group or an ester group in R2; and “a” is 0<a?1.0, and “b” is 0<b<1.0.
    Type: Application
    Filed: May 29, 2020
    Publication date: September 17, 2020
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Jun HATAKEYAMA, Takayuki FUJIWARA, Koji HASEGAWA, Takayuki NAGASAWA
  • Publication number: 20200259094
    Abstract: Provided are a conductive polymer composite and composition which: improve water volatilization efficiency during film formation by incorporating a novel non-doping fluorinated unit in a dopant polymer; also reduce H+ generation by using the non-doping fluorinated unit in place of an acid unit generating extra acids; have good filterability and film formability; and are capable of forming a film having high transparency and good flatness when the film is formed. The conductive polymer composite is a composite containing: (A) a ?-conjugated polymer; and (B) a dopant polymer which is a copolymer containing a repeating unit “a” shown by the following general formula (1) and at least one repeating unit “b” selected from repeating units shown by the following general formulae (2-1) to (2-7).
    Type: Application
    Filed: February 6, 2020
    Publication date: August 13, 2020
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takayuki NAGASAWA, Jun HATAKEYAMA
  • Publication number: 20200247926
    Abstract: Polymerization reaction is performed using a polymerizable monomer shown by the following general formula (1) and at least one monomer selected from monomers each having a structure of a salt among a lithium salt, a sodium salt, a potassium salt, and a nitrogen compound salt of a fluorosulfonic acid or the like; then, the structure of the salt of the repeating unit of a polymer obtained by the polymerization reaction is changed to the fluorosulfonic acid or the like by ion exchange. Thus, the present invention provides a polymer compound for a conductive polymer and a method for producing the polymer compound which is suitably used as a dopant for a fuel cell and a conductive material, and which is a copolymer containing a repeating unit of styrene having a 3,3,3-trifluoro-2-hydroxy-2-trifluoromethylisobutyl ether group, and a repeating unit having any of a fluorosulfonic acid, a fluorosulfonimide group, and a n-carbonyl-fluoro-sulfonamide group.
    Type: Application
    Filed: January 16, 2020
    Publication date: August 6, 2020
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Jun HATAKEYAMA, Takayuki NAGASAWA, Koji HASEGAWA, Masayoshi SAGEHASHI, Masahiro FUKUSHIMA
  • Patent number: 10559397
    Abstract: An object of the present invention is to provide a conductive polymer composite which has good filterability and good film forming property by spin coating and, when a film is formed, can form a conductive film having high transparency and good flatness property. It is provided a conductive polymer composite comprising (A) a ?-conjugated polymer, and (B) a dopant polymer containing a repeating unit “a” represented by the following general formula (1), and having a weight average molecular weight in the range of 1,000 to 500,000: wherein, R1, Z1, Rf1, and “a” are as defined in the specification.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: February 11, 2020
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Jun Hatakeyama, Takayuki Nagasawa, Koji Hasegawa
  • Patent number: 10515735
    Abstract: An object of the present invention is to provide a conductive polymer composite which has good filterability and good film forming property by spin coating and, when a film is formed, can form a conductive film having high transparency and good flatness property. It is provided a conductive polymer composite comprising (A) a ?-conjugated polymer, and (B) a dopant polymer containing a repeating unit “a” represented by the following general formula (1), and having a weight average molecular weight in the range of 1,000 to 500,000: wherein, R1, Z1, Rf1, and “a” are as defined in the specification.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: December 24, 2019
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Jun Hatakeyama, Takayuki Nagasawa, Koji Hasegawa
  • Patent number: 10508162
    Abstract: A polymer compound for a conductive polymer contains one or more kinds of repeating units “a” represented by the following general formula (1) and has a weight average molecular weight in the range of 1,000 to 500,000, R1 represents a hydrogen atom or a methyl group; Rf1 represents a linear or branched alkyl group having 1 to 4 carbon atoms or a phenyl group, and has at least one fluorine atom or a trifluoromethyl group in Rf1; Z1 represents a single bond, an arylene group having 6 to 12 carbon atoms or —C(?O)—O—R2—; R2 represents a linear, branched or cyclic alkylene group having 1 to 12 carbon atoms, an arylene group having 6 to 10 carbon atoms or an alkenylene group having 2 to 10 carbon atoms, and may have an ether group, a carbonyl group or an ester group in R2; and “a” is 0<a?1.0.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: December 17, 2019
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Jun Hatakeyama, Takayuki Fujiwara, Koji Hasegawa, Takayuki Nagasawa
  • Patent number: 10363555
    Abstract: The present invention provides a polymer compound for a conductive polymer, having one or more kinds of repeating units “a” represented by the following general formula (1), the polymer compound for a conductive polymer being synthesized by ion exchange of a lithium salt, a sodium salt, a potassium salt, a sulfonium compound salt, or a nitrogen compound salt of sulfonic acid residue with a weight average molecular weight in the range of 1,000 to 500,000, wherein R1 represents a hydrogen atom or a methyl group, R2 represents a fluorine atom or a trifluoromethyl group, “m” represents an integer of 1 to 4, and “a” satisfies 0<a?1.0. There can be provided a polymer compound for a conductive polymer having a specific superacidic sulfo group that is soluble in an organic solvent and suitably used for fuel cells or a dopant for conductive materials.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: July 30, 2019
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Jun Hatakeyama, Koji Hasegawa, Masaki Ohashi, Masayoshi Sagehashi, Takayuki Nagasawa
  • Publication number: 20190180888
    Abstract: The present invention is a conductive polymer composition including: (A) a polyaniline-based conductive polymer having two or more kinds of repeating units shown by the following general formula (1); and (B) a dopant polymer which contains a repeating unit shown by the following general formula (2) and has a weight-average molecular weight in a range of 1,000 to 500,000. This provides a conductive polymer composition having good filterability and film-formability of a flat film onto an electron beam resist, and being suitably usable for a antistatic film for electron beam resist drawing having lower surface resistivity (?/?) to show excellent antistatic performance in an electron beam drawing process, and excellent peelability with H2O or an alkaline developer after drawing.
    Type: Application
    Filed: December 4, 2018
    Publication date: June 13, 2019
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Takayuki NAGASAWA
  • Patent number: 10295906
    Abstract: A conductive polymer composition including: (A) ?-conjugated conductive polymer having at least one repeating unit shown by the following general formulae (1-1), (1-2), and (1-3); (B) a dopant polymer which contains a repeating unit “a” shown by the following general formula (2) and has a weight-average molecular weight in a range of 1,000 to 500,000; and (C) an amphoteric ion compound shown by the following general formula (3). This provides a conductive polymer composition having good filterability, coating property and film-formability onto a substrate to form a conductive film with good film quality and peelability with H2O or an alkaline developer; and forming a conductive film which reveals antistatic performance with high charge discharging ability and does not affect an influence of acid on the adjoined layer to be contact with.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: May 21, 2019
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takayuki Nagasawa, Jun Hatakeyama
  • Patent number: 10240061
    Abstract: The present invention provides a conductive polymer composite including: (A) a ?-conjugated polymer, and (B) a dopant polymer which contains a repeating unit “a” shown by the following general formula (1) and has a weight-average molecular weight in the range of 1,000 to 500,000. There can be provided a conductive polymer composite that has excellent filterability and film-formability by spin coating, and also can form a conductive film having high transparency and flatness when the film is formed therefrom.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: March 26, 2019
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Jun Hatakeyama, Takayuki Nagasawa