Patents by Inventor Noriaki Yukimura

Noriaki Yukimura 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).

  • Publication number: 20240368325
    Abstract: Embodiments of the present disclosure are directed to functionalized copolymers produced by copolymerization of at least one conjugated diolefin monomer and at least one vinyl monomer, the functionalized copolymer comprising at least one functional group having silica reactive moieties, wherein the functionalized copolymer has a degree of hydrogenation of 75% to 98 mol % as measured using proton nuclear magnetic resonance spectroscopy (1H NMR).
    Type: Application
    Filed: July 17, 2024
    Publication date: November 7, 2024
    Applicant: Bridgestone Corporation
    Inventors: Michael R. Beaulieu, Noriaki Yukimura, Zengquan Qin
  • Publication number: 20240336717
    Abstract: A thermoresponsive polymer defined by Formula V: where R1 is a hydrogen atom or a methyl group, Z is a hydrocarbylene glycol group, R3 is an hydrocarbyl group, q is an integer from about 1 to about 12 units, and ? is a polymer chain.
    Type: Application
    Filed: June 17, 2024
    Publication date: October 10, 2024
    Inventors: Joshua P. ABELL, Erin SHEEPWASH, Noriaki YUKIMURA
  • Patent number: 12054573
    Abstract: A method for preparing a functionalized polymer includes the steps of (i) polymerizing monomer to form a reactive polymer; and (ii) reacting the reactive polymer with a [poly(hydrocarbylene glycol) hydrocarbyl ether] (meth)acrylate.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: August 6, 2024
    Assignee: Bridgestone Corporation
    Inventors: Joshua P. Abell, Erin Sheepwash, Noriaki Yukimura
  • Patent number: 11884767
    Abstract: A vulcanizable composition comprising rubber component, a filler, and a curing agent, where the rubber component includes a block copolymer of polybutadiene and polyisoprene, and where the block copolymer has a cis content of at least 90%.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: January 30, 2024
    Assignee: Bridgestone Corporation
    Inventors: Hyeonjae Kim, Walter A. Salamant, Noriaki Yukimura, Steven Luo
  • Publication number: 20230134110
    Abstract: Embodiments of the present disclosure are directed to functionalized copolymers produced by copolymerization of at least one conjugated diolefin monomer and at least one vinyl monomer, the functionalized copolymer comprising at least one functional group having silica reactive moieties, wherein the functionalized copolymer has a degree of hydrogenation of 75% to 98 mol % as measured using proton nuclear magnetic resonance spectroscopy (1H NMR).
    Type: Application
    Filed: December 21, 2017
    Publication date: May 4, 2023
    Applicant: Bridgestone Corporation
    Inventors: Michael R. Beaulieu, Noriaki Yukimura, Zengquan Qin
  • Publication number: 20220119573
    Abstract: A vulcanizable composition comprising rubber component, a filler, and a curing agent, where the rubber component includes a block copolymer of polybutadiene and polyisoprene, and where the block copolymer has a cis content of at least 90%.
    Type: Application
    Filed: December 29, 2021
    Publication date: April 21, 2022
    Inventors: Hyeonjae KIM, Walter A. SALAMANT, Noriaki YUKIMURA, Steven LUO
  • Patent number: 11230622
    Abstract: A vulcanizable composition comprising rubber component, a filler, and a curing agent, where the rubber component includes a block copolymer of polybutadiene and polyisoprene, and where the block copolymer has a cis content of at least 90%.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: January 25, 2022
    Assignee: Bridgestone Corporation
    Inventors: Hyeonjae Kim, Walter A. Salamant, Noriaki Yukimura, Steven Luo
  • Publication number: 20210340306
    Abstract: Embodiments of the present disclosure are directed to functionalized copolymers produced by copolymerization of at least one conjugated diolefin monomer and at least one vinyl monomer, the functionalized copolymer including at least one functional group having silica reactive moieties, wherein the functionalized copolymer has a degree of hydrogenation of 75% to 98 mol % as measured using proton nuclear magnetic resonance spectroscopy (1H NMR). In one or more embodiments, the silane modifier may include an oxygen-containing moiety, wherein the oxygen atom of the oxygen-containing moiety may not be directly bonded with the silicon atom.
    Type: Application
    Filed: June 20, 2019
    Publication date: November 4, 2021
    Applicant: Bridgestone Corporation
    Inventors: Noriaki Yukimura, Michael R. Beaulieu, Zengquan Qin, Jeffrey M. Magistrelli, Walter A. Salamant, Ryan J. Hue, Shu Wang, Laura S. Kocsis
  • Publication number: 20210238336
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of (i) polymerizing monomer to form a reactive polymer; and (ii) reacting the reactive polymer with a [poly(hydrocarbylene glycol) hydrocarbyl ether] (meth)acrylate.
    Type: Application
    Filed: February 5, 2021
    Publication date: August 5, 2021
    Inventors: Joshua P. ABELL, Erin SHEEPWASH, Noriaki YUKIMURA
  • Patent number: 10730961
    Abstract: Disclosed herein are processes for preparing functionalized polymers, functionalizing compounds useful in the processes and processes for preparing the functionalizing compound. The processes for preparing a functionalized polymer include reaction of a functionalizing compound (prepared from the reaction of an alkoxysilane compound of formula (I) with a polyol of formula (II)) with a reactive conjugated diene monomer-containing polymer, thereby producing a polymer end functionalized with the functionalizing compound. In certain embodiments, the functionalizing compound has a formula according to formula (III), (IV), or (V).
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: August 4, 2020
    Assignee: Bridgestone Corporation
    Inventor: Noriaki Yukimura
  • Patent number: 10501601
    Abstract: The present invention provides a tire rubber composition prepared by mixing at least one rubber component selected from natural rubbers and synthetic diene rubbers (A), a filler including an inorganic filler (B), a silane coupling agent (C) and a thiosemicarbazone derivative (D), and provides a production method for a tire rubber composition, wherein the tire rubber composition is kneaded in plural stages, and in the first stage of kneading, the rubber component (A), all or part of the inorganic filler (B), all or part of the silane coupling agent (C), and the thiosemicarbazone derivative (D) are kneaded, therefore providing a tire rubber composition having improved reactivity between the coupling agent and the rubber component and excellent in low-heat-generation property and a production method for the composition.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: December 10, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Noriaki Yukimura
  • Publication number: 20190359755
    Abstract: A vulcanizable composition comprising rubber component, a filler, and a curing agent, where the rubber component includes a block copolymer of polybutadiene and polyisoprene, and where the block copolymer has a cis content of at least 90%.
    Type: Application
    Filed: November 9, 2017
    Publication date: November 28, 2019
    Applicant: Bridgestone Corporation
    Inventors: Hyeonjae Kim, Walter A. Salamant, Noriaki Yukimura, Steven Luo
  • Publication number: 20180319955
    Abstract: The invention provides a rubber composition prepared by mixing, per 100 parts by mass of a rubber component comprising at least 50% by mass of a diene-based rubber, from 20 to 150 parts by mass of a filler, and from 0.05 to 30 parts by mass of a compound A which has a specific guanidine structure and has a functional group reactive with the diene-based rubber. The rubber composition improves both a high elastic modulus and a low tan ?. The invention also provides a pneumatic tire using the rubber composition.
    Type: Application
    Filed: July 12, 2018
    Publication date: November 8, 2018
    Applicants: BRIDGESTONE CORPORATION, OTSUKA CHEMICAL CO., LTD.
    Inventors: Noriaki YUKIMURA, Takahiro YOSHIZAWA, Kazuhiro KODAMA, Hiroaki YUASA, Noriaki SHIINA, Takashi SATO, Hiroyuki ISHITOBI, Mifuyu UENO, Shinya NAKASHIMA, Masaki ABE
  • Patent number: 10053553
    Abstract: The invention provides a rubber composition prepared by mixing, per 100 parts by mass of a rubber component comprising at least 50% by mass of a diene-based rubber, from 20 to 150 parts by mass of a filler, and from 0.05 to 30 parts by mass of a compound A which has a specific guanidine structure and has a functional group reactive with the diene-based rubber. The rubber composition improves both a high elastic modulus and a low tan ?. The invention also provides a pneumatic tire using the rubber composition.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: August 21, 2018
    Assignees: BRIDGESTONE CORPORATION, OTSUKA CHEMICAL CO., LTD.
    Inventors: Noriaki Yukimura, Takahiro Yoshizawa, Kazuhiro Kodama, Hiroaki Yuasa, Noriaki Shiina, Takashi Sato, Hiroyuki Ishitobi, Mifuyu Ueno, Shinya Nakashima, Masaki Abe
  • Publication number: 20180223007
    Abstract: Disclosed herein are processes for preparing functionalized polymers, functionalizing compounds useful in the processes and processes for preparing the functionalizing compound. The processes for preparing a functionalized polymer include reaction of a functionalizing compound (prepared from the reaction of an alkoxysilane compound of formula (I) with a polyol of formula (II)) with a reactive conjugated diene monomer-containing polymer, thereby producing a polymer end functionalized with the functionalizing compound. In certain embodiments, the functionalizing compound has a formula according to formula (III), (IV), or (V).
    Type: Application
    Filed: July 28, 2016
    Publication date: August 9, 2018
    Applicant: Bridgestone Corporation
    Inventor: Noriaki Yukimura
  • Patent number: 9951197
    Abstract: The present invention relates to a method for producing a rubber composition obtained by compounding a rubber component (A) containing at least one kind selected from natural rubber and synthetic diene rubber, a filler containing an inorganic filler (B), a silane coupling agent (C), and thiourea, the method comprising kneading the rubber composition in plural stages, the rubber component (A), the whole or a part of the inorganic filler (B), the whole or a part of the silane coupling agent (C), and the thiourea being kneaded in the first stage of kneading, and thus provides a method for producing a rubber composition excellent in low-heat-generation property through enhancement of the reactivity between the coupling agent and the rubber component.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: April 24, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Noriaki Yukimura, Satoshi Horie, Takumi Toda
  • Patent number: 9546232
    Abstract: The invention provides a rubber composition prepared by mixing, per 100 parts by mass of the rubber component comprising at least 50% by mass of a diene-based rubber, from 20 to 150 parts by mass of a filler, and from 0.05 to 30 parts by mass of a compound A which has a specific amidine structure and has a functional group reactive with the diene-based rubber. The rubber composition improves both a high elastic modulus and a low tan ?. The invention also provides a pneumatic tire using the rubber composition.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: January 17, 2017
    Assignees: BRIDGESTONE CORPORATION, OTSUKA CHEMICAL CO., LTD.
    Inventors: Noriaki Yukimura, Takahiro Yoshizawa, Kazuhiro Kodama, Hiroaki Yuasa, Noriaki Shiina, Takashi Sato, Hiroyuki Ishitobi, Mifuyu Ueno, Shinya Nakashima, Masaki Abe
  • Publication number: 20160115296
    Abstract: The present invention provides a tire rubber composition prepared by mixing at least one rubber component selected from natural rubbers and synthetic diene rubbers (A), a filler including an inorganic filler (B), a silane coupling agent (C) and a thiosemicarbazone derivative (D), and provides a production method for a tire rubber composition, wherein the tire rubber composition is kneaded in plural stages, and in the first stage of kneading, the rubber component (A), all or part of the inorganic filler (B), all or part of the silane coupling agent (C), and the thiosemicarbazone derivative (D) are kneaded, therefore providing a tire rubber composition having improved reactivity between the coupling agent and the rubber component and excellent in low-heat-generation property and a production method for the composition.
    Type: Application
    Filed: May 28, 2014
    Publication date: April 28, 2016
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Noriaki YUKIMURA
  • Publication number: 20150361248
    Abstract: The invention provides a rubber composition prepared by mixing, per 100 parts by mass of a rubber component comprising at least 50% by mass of a diene-based rubber, from 20 to 150 parts by mass of a filler, and from 0.05 to 30 parts by mass of a compound A which has a specific guanidine structure and has a functional group reactive with the diene-based rubber. The rubber composition improves both a high elastic modulus and a low tan ?. The invention also provides a pneumatic tire using the rubber composition.
    Type: Application
    Filed: January 30, 2014
    Publication date: December 17, 2015
    Applicants: OTSUKA CHEMICAL CO., LTD., BRIDGESTONE CORPORATION
    Inventors: Noriaki YUKIMURA, Takahiro YOSHIZAWA, Kazuhiro KODAMA, Hiroaki YUASA, Noriaki SHIINA, Takashi SATO, Hiroyuki ISHITOBI, Mifuyu UENO, Shinya NAKASHIMA, Masaki ABE
  • Publication number: 20150353657
    Abstract: The invention provides a rubber composition prepared by mixing, per 100 parts by mass of the rubber component comprising at least 50% by mass of a diene-based rubber, from 20 to 150 parts by mass of a filler, and from 0.05 to 30 parts by mass of a compound A which has a specific amidine structure and has a functional group reactive with the diene-based rubber. The rubber composition improves both a high elastic modulus and a low tan ?. The invention also provides a pneumatic tire using the rubber composition.
    Type: Application
    Filed: January 30, 2014
    Publication date: December 10, 2015
    Applicants: OTSUKA CHEMICAL CO., LTD., BRIDGESTONE CORPORATION
    Inventors: Noriaki YUKIMURA, Takahiro YOSHIZAWA, Kazuhiro KODAMA, Hiroaki YUASA, Noriaki SHIINA, Takashi SATO, Hiroyuki ISHITOBI, Mifuyu UENO, Shinya NAKASHIMA, Masaki ABE