Patents by Inventor Yuki Mitsutsuji

Yuki Mitsutsuji 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: 20230182439
    Abstract: A molded article includes a fiber-reinforced composite material in which reinforcing fibers are impregnated with a matrix resin, wherein components A, B, and C: Component A: a fiber-reinforced base material in which continuous reinforcing fibers are impregnated with a PPS resin is applied as the matrix resin, and a volume content of fiber Vf?A in the component A is Vf?A=50 to 70 vol %; Component B: a fiber-reinforced base material in which the continuous reinforcing fibers are impregnated with the matrix resin, the PPS resin and a PPS resin having a melting point TmB lower than a melting point TmA of the PPS resin are applied as the matrix resins, and a volume content of fiber Vf?B in the component B is Vf?B<Vf?A; and Component C: a fiber-reinforced resin obtained by impregnating discontinuous reinforcing fibers with the PPS resin is applied as the matrix resin.
    Type: Application
    Filed: May 27, 2021
    Publication date: June 15, 2023
    Inventors: Yuki Mitsutsuji, Masahiro Hashimoto, Masaru Tateyama, Wataru Hasegawa
  • Publication number: 20230113270
    Abstract: A preform is obtained by stacking two or more prepreg cut materials, each of which is obtained by cutting a sheet-like prepreg into an outline of a predetermined shape, and the sheet-like prepreg being formed of a matrix resin and reinforcing fibers aligned in one direction. This preform is characterized in that at least one prepreg cut material has first incisions that are regularly distributed throughout the whole in-plane region and a second incision that is longer than the first incision while being provided only in a predetermined specific region.
    Type: Application
    Filed: December 22, 2020
    Publication date: April 13, 2023
    Inventors: Yusuke Tsumura, Yuki Mitsutsuji, Takashi Hasegawa
  • Patent number: 11015047
    Abstract: To provide a fiber reinforced thermoplastic resin molded article having excellent impact strength and flexural strength, provided is a fiber reinforced thermoplastic resin molded article, including: a carbon fiber (A), an organic fiber (B) having a strand strength of 1500 MPa or more and, a thermoplastic resin (C), wherein the fiber reinforced thermoplastic resin molded article contains 5 to 45 parts by weight of the carbon fiber (A), 1 to 45 parts by weight of the organic fiber (B), and 20 to 94 parts by weight of the thermoplastic resin (C) with respect to 100 parts by weight of the total of the carbon fiber (A), the organic fiber (B), and the thermoplastic resin (C), wherein a ratio (Lco/lno) of the critical fiber length Lco of the organic fiber (B) to the number average fiber length lno of the organic fiber (B) is 0.9 or more and 2.0 or less, and wherein an interfacial shear strength between the organic fiber (B) and the thermoplastic resin (C) is 3.0 MPa or more and 50 MPa or less.
    Type: Grant
    Filed: September 3, 2018
    Date of Patent: May 25, 2021
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Kazuki Yoshihiro, Yuki Mitsutsuji, Atsuki Tsuchiya
  • Publication number: 20210147664
    Abstract: To provide a fiber reinforced thermoplastic resin molded article having excellent impact strength and flexural strength, provided is a fiber reinforced thermoplastic resin molded article, including: a carbon fiber (A), an organic fiber (B) having a strand strength of 1500 MPa or more and, a thermoplastic resin (C), wherein the fiber reinforced thermoplastic resin molded article contains 5 to 45 parts by weight of the carbon fiber (A), 1 to 45 parts by weight of the organic fiber (B), and 20 to 94 parts by weight of the thermoplastic resin (C) with respect to 100 parts by weight of the total of the carbon fiber (A), the organic fiber (B), and the thermoplastic resin (C), wherein a ratio (Lco/lno) of the critical fiber length Lco of the organic fiber (B) to the number average fiber length lno of the organic fiber (B) is 0.9 or more and 2.0 or less, and wherein an interfacial shear strength between the organic fiber (B) and the thermoplastic resin (C) is 3.0 MPa or more and 50 MPa or less.
    Type: Application
    Filed: September 3, 2018
    Publication date: May 20, 2021
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Kazuki YOSHIHIRO, Yuki MITSUTSUJI, Atsuki TSUCHIYA
  • Patent number: 10619017
    Abstract: A fiber reinforced thermoplastic resin molded article includes 5 to 45 parts by weight of carbon fibers (A), 1 to 45 parts by weight of organic fibers (B), and 10 to 94 parts by weight of a thermoplastic resin (C), based on 100 parts by weight of the total amount of the carbon fibers (A), the organic fibers (B), and the thermoplastic resin (C). The carbon fibers (A) in the fiber reinforced thermoplastic resin molded article have an average fiber length (LA) of 0.3 to 3 mm. The organic fibers (B) in the fiber reinforced thermoplastic resin molded article have an average fiber length (LB) of 0.5 to 5 mm, and a number average fiber diameter (dB) of 1 to 10 ?m. The fiber reinforced thermoplastic resin molded article excellent in impact strength.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: April 14, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Yuki Mitsutsuji, Shin Hirata, Atsuki Tsuchiya
  • Patent number: 10584218
    Abstract: A fiber reinforced thermoplastic resin molded article includes 5 to 45 parts by weight of carbon fibers (A), 1 to 45 parts by weight of organic fibers (B), and 10 to 94 parts by weight of a thermoplastic resin (C), based on 100 parts by weight of the total amount of the carbon fibers (A), the organic fibers (B), and the thermoplastic resin (C). The carbon fibers (A) in the fiber reinforced thermoplastic resin molded article have an average fiber length (LA) of 0.3 to 3 mm. The organic fibers (B) in the fiber reinforced thermoplastic resin molded article have an average fiber length (LB) of 0.5 to 5 mm, and a number average fiber diameter (dB) of 35 to 300 ?m. The fiber reinforced thermoplastic resin molded article is excellent in impact strength and surface appearance.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: March 10, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Yuki Mitsutsuji, Shin Hirata, Atsuki Tsuchiya
  • Patent number: 10583591
    Abstract: A fiber reinforced thermoplastic resin molded article includes (A) carbon fibers, (B) graphite and (C) a thermoplastic resin, wherein the carbon fibers (A), the graphite (B) and the thermoplastic resin (C) are contained in amounts of 1 to 30 parts by weight, 1 to 40 parts by weight and 30 to 98 parts by weight, respectively, relative to 100 parts by weight, of the carbon fibers (A), the graphite (B) and the thermoplastic resin (C), the weight average fiber length of the carbon fibers (A) is 0.3 to 3 mm and the specific gravity of the molded article is 1.1 to 1.9 g/cm3. The fiber reinforced thermoplastic resin molded article has excellent bending strength and heat conductivity.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: March 10, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Yuki Mitsutsuji, Sora Bang, Shin Hirata, Atsuki Tsuchiya
  • Patent number: 10385174
    Abstract: A fiber reinforced thermoplastic resin molding material includes a thermoplastic resin; a resin impregnated reinforcing fiber filament obtained by impregnating reinforcing fibers with a resin having a melt viscosity at 200° C. lower than a melt viscosity of the thermoplastic resin; and a reinforcing fiber modifier having a melt viscosity at 200° C. lower than the melt viscosity of the thermoplastic resin and a difference in solubility parameter value from the thermoplastic resin equal to or larger than 1.0, the molding material including 50 to 98.9 parts by weight of the thermoplastic resin; 1 to 40 parts by weight of the reinforcing fiber; 0.1 to 10 parts by weight of the reinforcing fiber modifier; and 0.2 to 12 parts by weight of the resin relative to total 100 parts by weight of the thermoplastic resin, the reinforcing fiber, and the reinforcing fiber modifier.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: August 20, 2019
    Assignee: Toray Industries, Inc.
    Inventors: Shin Hirata, Yuki Mitsutsuji, Sora Bang, Atsuki Tsuchiya
  • Publication number: 20180312648
    Abstract: A fiber reinforced thermoplastic resin molded article includes 5 to 45 parts by weight of carbon fibers (A), 1 to 45 parts by weight of organic fibers (B), and 10 to 94 parts by weight of a thermoplastic resin (C), based on 100 parts by weight of the total amount of the carbon fibers (A), the organic fibers (B), and the thermoplastic resin (C). The carbon fibers (A) in the fiber reinforced thermoplastic resin molded article have an average fiber length (LA) of 0.3 to 3 mm. The organic fibers (B) in the fiber reinforced thermoplastic resin molded article have an average fiber length (LB) of 0.5 to 5 mm, and a number average fiber diameter (dB) of 35 to 300 ?m. The fiber reinforced thermoplastic resin molded article is excellent in impact strength and surface appearance.
    Type: Application
    Filed: October 21, 2016
    Publication date: November 1, 2018
    Inventors: Yuki Mitsutsuji, Shin Hirata, Atsuki Tsuchiya
  • Publication number: 20180305507
    Abstract: A fiber reinforced thermoplastic resin molded article includes 5 to 45 parts by weight of carbon fibers (A), 1 to 45 parts by weight of organic fibers (B), and 10 to 94 parts by weight of a thermoplastic resin (C), based on 100 parts by weight of the total amount of the carbon fibers (A), the organic fibers (B), and the thermoplastic resin (C). The carbon fibers (A) in the fiber reinforced thermoplastic resin molded article have an average fiber length (LA) of 0.3 to 3 mm. The organic fibers (B) in the fiber reinforced thermoplastic resin molded article have an average fiber length (LB) of 0.5 to 5 mm, and a number average fiber diameter (dB) of 1 to 10 ?m. The fiber reinforced thermoplastic resin molded article excellent in impact strength.
    Type: Application
    Filed: October 21, 2016
    Publication date: October 25, 2018
    Inventors: Yuki Mitsutsuji, Shin Hirata, Atsuki Tsuchiya
  • Publication number: 20170260346
    Abstract: A fiber reinforced thermoplastic resin molding material includes a thermoplastic resin; a resin impregnated reinforcing fiber filament obtained by impregnating reinforcing fibers with a resin having a melt viscosity at 200° C. lower than a melt viscosity of the thermoplastic resin; and a reinforcing fiber modifier having a melt viscosity at 200° C. lower than the melt viscosity of the thermoplastic resin and a difference in solubility parameter value from the thermoplastic resin equal to or larger than 1.0, the molding material including 50 to 98.9 parts by weight of the thermoplastic resin; 1 to 40 parts by weight of the reinforcing fiber; 0.1 to 10 parts by weight of the reinforcing fiber modifier; and 0.2 to 12 parts by weight of the resin relative to total 100 parts by weight of the thermoplastic resin, the reinforcing fiber, and the reinforcing fiber modifier.
    Type: Application
    Filed: July 30, 2015
    Publication date: September 14, 2017
    Inventors: Shin Hirata, Yuki Mitsutsuji, Sora Bang, Atsuki Tsuchiya
  • Publication number: 20170225373
    Abstract: A fiber reinforced thermoplastic resin molded article includes (A) carbon fibers, (B) graphite and (C) a thermoplastic resin, wherein the carbon fibers (A), the graphite (B) and the thermoplastic resin (C) are contained in amounts of 1 to 30 parts by weight, 1 to 40 parts by weight and 30 to 98 parts by weight, respectively, relative to 100 parts by weight, of the carbon fibers (A), the graphite (B) and the thermoplastic resin (C), the weight average fiber length of the carbon fibers (A) is 0.3 to 3 mm and the specific gravity of the molded article is 1.1 to 1.9 g/cm3. The fiber reinforced thermoplastic resin molded article has excellent bending strength and heat conductivity.
    Type: Application
    Filed: October 20, 2015
    Publication date: August 10, 2017
    Inventors: Yuki Mitsutsuji, Sora Bang, Shin Hirata, Atsuki Tsuchiya
  • Patent number: 9605149
    Abstract: A fiber reinforced thermoplastic resin molding material includes a carbon fiber reinforced thermoplastic resin molding material, comprising 5 to 45 parts by weight of carbon fibers, 94 to 35 parts by weight of a thermoplastic resin, and 1 to 20 parts by weight of a compound having a melt viscosity lower than the thermoplastic resin based on 100 parts by weight of the total amount of the carbon fibers, the thermoplastic resin, and the compound having a melt viscosity at 200° C. lower than that of the thermoplastic resin, wherein the thermoplastic resin is contained at an outer side of a composite obtained by impregnating the carbon fibers with the compound, and the length of the carbon fibers and the length of the carbon fiber reinforced thermoplastic resin molding material are substantially the same.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: March 28, 2017
    Assignee: Toray Industries, Inc.
    Inventors: Shin Hirata, Yuki Mitsutsuji, Toru Nishimura
  • Patent number: 9605148
    Abstract: A fiber reinforced thermoplastic resin molding material includes 5 to 45 parts by weight of carbon fibers; 1 to 45 parts by weight of organic fibers; 20 to 93 parts by weight of a thermoplastic resin; and 1 to 20 parts by weight of a compound having a melt viscosity lower than the thermoplastic resin based on 100 parts by weight of the total amount of the carbon fibers, the organic fibers, the thermoplastic resin, and the compound having a melt viscosity lower than the thermoplastic resin, wherein the thermoplastic resin is contained at an outer side of a composite obtained by impregnating a fiber bundle including the carbon and organic fibers with the compound; the carbon and organic fibers are unevenly distributed in a cross section of the fiber bundle; and the length of the fiber bundle and the fiber reinforced thermoplastic resin molding material are substantially the same.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: March 28, 2017
    Assignee: Toray Industries, Inc.
    Inventors: Shin Hirata, Yuki Mitsutsuji, Toru Nishimura
  • Publication number: 20170029580
    Abstract: A fiber reinforced thermoplastic resin molding material includes 5 to 45 parts by weight of carbon fibers; 1 to 45 parts by weight of organic fibers; 20 to 93 parts by weight of a thermoplastic resin; and 1 to 20 parts by weight of a compound having a melt viscosity lower than the thermoplastic resin based on 100 parts by weight of the total amount of the carbon fibers, the organic fibers, the thermoplastic resin, and the compound having a melt viscosity lower than the thermoplastic resin, wherein the thermoplastic resin is contained at an outer side of a composite obtained by impregnating a fiber bundle including the carbon and organic fibers with the compound; the carbon and organic fibers are unevenly distributed in a cross section of the fiber bundle; and the length of the fiber bundle and the fiber reinforced thermoplastic resin molding material are substantially the same.
    Type: Application
    Filed: October 17, 2016
    Publication date: February 2, 2017
    Inventors: Shin Hirata, Yuki Mitsutsuji, Toru Nishimura
  • Publication number: 20170029581
    Abstract: A fiber reinforced thermoplastic resin molding material includes a carbon fiber reinforced thermoplastic resin molding material, comprising 5 to 45 parts by weight of carbon fibers, 94 to 35 parts by weight of a thermoplastic resin, and 1 to 20 parts by weight of a compound having a melt viscosity lower than the thermoplastic resin based on 100 parts by weight of the total amount of the carbon fibers, the thermoplastic resin, and the compound having a melt viscosity at 200° C. lower than that of the thermoplastic resin, wherein the thermoplastic resin is contained at an outer side of a composite obtained by impregnating the carbon fibers with the compound, and the length of the carbon fibers and the length of the carbon fiber reinforced thermoplastic resin molding material are substantially the same.
    Type: Application
    Filed: October 17, 2016
    Publication date: February 2, 2017
    Inventors: Shin Hirata, Yuki Mitsutsuji, Toru Nishimura
  • Patent number: 9505928
    Abstract: A fiber reinforced thermoplastic resin molded article includes 5 to 40 parts by weight of carbon fibers (A), 1 to 40 parts by weight of organic fibers (B), and 20 to 94 parts by weight of a thermoplastic resin (C) based on 100 parts by weight of the total amount of the carbon fibers (A), the organic fibers (B), and the thermoplastic resin (C), wherein the carbon fibers (A) have an average fiber length (LA) of 0.3 to 1.5 mm, and an average straight-line distance between two edges of a single fiber (DA), and the organic fibers (B) have an average fiber length (LB) of 1.5 to 4 mm.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: November 29, 2016
    Assignee: Toray Industries, Inc.
    Inventors: Shin Hirata, Yuki Mitsutsuji, Toru Nishimura
  • Patent number: 9340672
    Abstract: A resin composition including 10 to 90% by mass of (A) a component to be polymerized containing a compound represented by Formula (1), and 90 to 10% by mass of (B) a thermosetting resin, the (A) and (B) each being capable of undergoing a reaction to increase molecular weight by itself when heated: wherein, Ar represents an aryl; and X represents at least one selected from the group consisting of ethers, ketones, sulfides, sulfones, amides, carbonates and esters.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: May 17, 2016
    Assignee: Toray Industries, Inc.
    Inventors: Kentaro Sano, Yuki Mitsutsuji, Masato Honma
  • Publication number: 20150291789
    Abstract: A fiber reinforced thermoplastic resin molded article includes 5 to 40 parts by weight of carbon fibers (A), 1 to 40 parts by weight of organic fibers (B), and 20 to 94 parts by weight of a thermoplastic resin (C) based on 100 parts by weight of the total amount of the carbon fibers (A), the organic fibers (B), and the thermoplastic resin (C), wherein the carbon fibers (A) have an average fiber length (LA) of 0.3 to 1.5 mm, and an average straight-line distance between two edges of a single fiber (DA), and the organic fibers (B) have an average fiber length (LB) of 1.5 to 4 mm.
    Type: Application
    Filed: December 18, 2013
    Publication date: October 15, 2015
    Applicant: Toray Industries, Inc.
    Inventors: Shin Hirata, Yuki Mitsutsuji, Toru Nishimura
  • Publication number: 20130261229
    Abstract: A resin composition including 10 to 90% by mass of (A) a component to be polymerized containing a compound represented by Formula (1), and 90 to 10% by mass of (B) a thermosetting resin, the (A) and (B) each being capable of undergoing a reaction to increase molecular weight by itself when heated: wherein, Ar represents an aryl; and X represents at least one selected from the group consisting of ethers, ketones, sulfides, sulfones, amides, carbonates and esters.
    Type: Application
    Filed: December 7, 2011
    Publication date: October 3, 2013
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Kentaro Sano, Yuki Mitsutsuji, Masato Honma