Patents by Inventor Shunsuke OKUZAWA

Shunsuke OKUZAWA 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: 12084572
    Abstract: The present invention provides an impeller formed from a resin composition having high tensile strength and specific strength in a high-temperature environment, and having high dimensional accuracy and excellent fire resistance. The impeller according to the present invention is formed from a resin composition containing (A) an aromatic polycarbonate-based resin (component A) and (B) a liquid crystal polyester resin (component B), and containing, on the basis of a total of 100 parts by weight of component A and component B, (C) 3-40 parts by weight of a halogenated carbonate compound (component C), (D) 0.1-3 parts by weight of a drip inhibitor (component D), (E) 25-150 parts by weight of glass fibers and/or carbon fibers (component E), (F) 0.1-8 parts by weight of an epoxy resin (component F), and (G) 0.01-3 parts by weight of a phosphorus-based stabilizer (component G), wherein the weight ratio of component A and component B [(A)/(B)] is 98/2 to 60/40.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: September 10, 2024
    Assignee: TEIJIN LIMITED
    Inventors: Shunsuke Okuzawa, Masatsugu Furuki, Seiji Kikuchi, Tadayoshi Tsukeda, Saki Aso, Koichi Iwata
  • Patent number: 11332614
    Abstract: The present invention provides a reinforced polycarbonate resin composition having all of excellent strength, impact resistance, heat resistance, flame retardancy and thermal stability. A reinforced polycarbonate resin composition which contains 100 parts by weight of a resin composition composed of (A) 50 to 95 parts by weight of a polycarbonate resin (component A) and (B) 5 to 50 parts by weight of a fibrous filler (component B) and (C) 2 to 45 parts by weight of a fluororesin (component C-I) or 2 to 45 parts by weight of a fluororesin (component C-II), wherein (I) the fluororesin (component C-I) is a copolymer containing polymerization units respectively represented by general formulae [1] and [2] and has a melting point of 200 to 280° C., and (II) the fluororesin (component C-II) is a copolymer containing polymerization units respectively represented by general formulae [1] and [2], has a melting point of 240 to 300° C., and has a 5% weight loss temperature of 470° C.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: May 17, 2022
    Assignees: TEIJIN LIMITED, DAIKIN INDUSTRIES, LTD.
    Inventors: Shunsuke Okuzawa, Toshiyuki Miyake, Koji Nakanishi, Masaji Komori, Hideki Kono
  • Publication number: 20220127455
    Abstract: The present invention provides an impeller formed from a resin composition having high tensile strength and specific strength in a high-temperature environment, and having high dimensional accuracy and excellent fire resistance. The impeller according to the present invention is formed from a resin composition containing (A) an aromatic polycarbonate-based resin (component A) and (B) a liquid crystal polyester resin (component B), and containing, on the basis of a total of 100 parts by weight of component A and component B, (C) 3-40 parts by weight of a halogenated carbonate compound (component C), (D) 0.1-3 parts by weight of a drip inhibitor (component D), (E) 25-150 parts by weight of glass fibers and/or carbon fibers (component E), (F) 0.1-8 parts by weight of an epoxy resin (component F), and (G) 0.01-3 parts by weight of a phosphorus-based stabilizer (component G), wherein the weight ratio of component A and component B [(A)/(B)] is 98/2 to 60/40.
    Type: Application
    Filed: March 10, 2020
    Publication date: April 28, 2022
    Applicant: TEIJIN LIMITED
    Inventors: Shunsuke OKUZAWA, Masatsugu FURUKI, Seiji KIKUCHI, Tadayoshi TSUKEDA, Saki ASO, Koichi IWATA
  • Patent number: 11261324
    Abstract: A resin composition containing a polycarbonate resin and a fluorine-containing copolymer. The fluorine-containing copolymer is a copolymer containing a polymerized unit based on tetrafluoroethylene in an amount of 75% by mass or more of all polymerized units and at least one selected from a polymerized unit based on hexafluoropropylene and a polymerized unit based on a perfluoro(alkyl vinyl ether) in an amount of 2% by mass or more. Also disclosed is a molded article formed from the resin composition, the polycarbonate resin constituting a continuous phase and the fluorine-containing copolymer constituting a dispersed phase having an average particle size of 0.01 to 2.5 ?m.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: March 1, 2022
    Assignees: DAIKIN INDUSTRIES, LTD., TEIJIN LIMITED
    Inventors: Koji Nakanishi, Masaji Komori, Hideki Kono, Shunsuke Okuzawa, Toshiyuki Miyake
  • Publication number: 20200140682
    Abstract: The present invention provides a reinforced polycarbonate resin composition having all of excellent strength, impact resistance, heat resistance, flame retardancy and thermal stability. A reinforced polycarbonate resin composition which contains 100 parts by weight of a resin composition composed of (A) 50 to 95 parts by weight of a polycarbonate resin (component A) and (B) 5 to 50 parts by weight of a fibrous filler (component B) and (C) 2 to 45 parts by weight of a fluororesin (component C-I) or 2 to 45 parts by weight of a fluororesin (component C-II), wherein (I) the fluororesin (component C-I) is a copolymer containing polymerization units respectively represented by general formulae [1] and [2] and has a melting point of 200 to 280° C., and (II) the fluororesin (component C-II) is a copolymer containing polymerization units respectively represented by general formulae [1] and [2], has a melting point of 240 to 300° C., and has a 5% weight loss temperature of 470° C.
    Type: Application
    Filed: June 25, 2018
    Publication date: May 7, 2020
    Applicants: TEIJIN LIMITED, Daikin Industries, Ltd.
    Inventors: Shunsuke OKUZAWA, Toshiyuki MIYAKE, Koji NAKANISHI, Masaji KOMORI, Hideki KONO
  • Publication number: 20200123377
    Abstract: A resin composition containing a polycarbonate resin and a fluorine-containing copolymer. The fluorine-containing copolymer is a copolymer containing a polymerized unit based on tetrafluoroethylene in an amount of 75% by mass or more of all polymerized units and at least one selected from a polymerized unit based on hexafluoropropylene and a polymerized unit based on a perfluoro(alkyl vinyl ether) in an amount of 2% by mass or more. Aso disclosed is a molded article formed from the resin composition, the polycarbonate resin constituting a continuous phase and the fluorine-containing copolymer constituting a dispersed phase having an average particle size of 0.01 to 2.5 ?m.
    Type: Application
    Filed: June 25, 2018
    Publication date: April 23, 2020
    Applicants: DAIKIN INDUSTRIES, LTD, TEIJIN LIMITED
    Inventors: Koji NAKANISHI, Masaji KOMORI, Hideki KONO, Shunsuke OKUZAWA, Toshiyuki MIYAKE