Patents by Inventor Tomohiro Takehara

Tomohiro Takehara 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: 20230294370
    Abstract: The present invention pertains to a fiber-reinforced plastic that has, as at least one of the surface layers in the thickness direction thereof, a layer containing reinforced fibers and a matrix in which a thermosetting resin and a thermoplastic resin are integrated. The reinforced fibers form discontinuous reinforced fiber bundles randomly stacked or discontinuous reinforced fiber bundles arranged in one direction. A portion of the discontinuous reinforced fiber bundles is in contact with both of the thermosetting resin and the thermoplastic resin. The thermoplastic resin is exposed in at least a portion of the surface of the surface layer.
    Type: Application
    Filed: July 21, 2021
    Publication date: September 21, 2023
    Applicant: Toray Industries, Inc.
    Inventors: Terumasa Tsuda, Tomohiro Takehara, Masato Honma
  • Publication number: 20230220170
    Abstract: The present invention relates to a fiber-reinforced plastic, including: a reinforcing fiber group containing reinforcing fibers; a thermosetting resin layer containing a first thermosetting resin; and a thermoplastic resin layer, in which the thermoplastic resin layer is provided as a surface layer of the fiber-reinforced plastic, an interface between the thermoplastic resin layer and the thermosetting resin layer is positioned inside the reinforcing fiber group, and the thermoplastic resin layer contains a dispersed phase of a second thermosetting resin.
    Type: Application
    Filed: June 2, 2021
    Publication date: July 13, 2023
    Applicant: Toray Industries, Inc.
    Inventors: Tomohiro Takehara, Masato Honma
  • Patent number: 11534117
    Abstract: An imaging table to be supported in a cantilever state on an X-ray imaging apparatus, includes a planar body including an opening portion in a surface to be connected to the apparatus, and a coupling member to be connected to the apparatus. The planar body includes a first member forming a top surface including an X-ray irradiation surface, and a second member forming a bottom surface opposed to the X-ray irradiation surface and a standing wall portion erectly provided on an outer circumference of the bottom surface. The second member is bonded to the first member in the standing wall portion. The first member and the coupling member are bonded to each other. The first member has an aluminum-equivalent X-ray transmission dose of 0.5 mmAL or less at any point in the X-ray irradiation surface.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: December 27, 2022
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Tomohiro Takehara, Mitsushige Hamaguchi, Masato Honma
  • Patent number: 11389121
    Abstract: An imaging table for a mammography apparatus is formed by a planar body and is to be supported in a cantilever state on a body of the mammography apparatus. At least an X-ray irradiation surface in the planar body has at least one of the following configurations (1) and (2): (1) the X-ray irradiation surface is formed by a carbon fiber composite material including a unidirectional carbon fiber composite material containing carbon fibers and a matrix resin, the carbon fibers being aligned in one direction; and (2) the X-ray irradiation surface is formed by a skin material and a resin sheet, the skin material including a carbon fiber composite material containing continuous fibers and a matrix resin, the resin sheet being disposed on an inner layer side from the skin material.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: July 19, 2022
    Assignee: Toray Industries, Inc.
    Inventors: Tomohiro Takehara, Mitsushige Hamaguchi, Masato Honma
  • Patent number: 11225037
    Abstract: A production method for a fiber reinforced composite material includes heating a preform formed by laminating a prepreg layer (I) including a reinforcement fiber (A) and a thermosetting resin (B-1) with a resin layer (II) including a thermosetting resin (B-2) and a solid additive (C) to cure the thermosetting resin (B-1) and the thermosetting resin (B-2), the cured resin layer (II?) formed by curing the resin layer (II) having an average thickness of 35 ?m or more and 300 ?m or less.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: January 18, 2022
    Assignee: Toray Industries, Inc.
    Inventors: Tomohiro Takehara, Satoshi Seike, Masato Honma, Satomi Matsuo
  • Patent number: 11034809
    Abstract: A resin supply material used for press molding or vacuum-pressure molding of a fiber-reinforced resin, the resin supply material including a continuous porous material and a thermosetting resin, wherein an average pore cross-sectional area ratio P expressed by formula (I) is 1.1 or more: P=AII/AI??(I) AI: average pore cross-sectional area in region I AII: average pore cross-sectional area in region II Region I: region occupying 10% of total volume of continuous porous material from surface layer on both surfaces thereof Region II: whole region of continuous porous material.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: June 15, 2021
    Assignee: Toray Industries, Inc.
    Inventors: Tomohiro Takehara, Satoshi Seike, Masato Honma, Naokichi Imai, Satomi Hiasa
  • Patent number: 11001011
    Abstract: A method of producing a fiber reinforced composite material satisfies condition 1: a thermosetting resin base material (B) includes a thermosetting resin (a) and a nonwoven fabric-shaped base material (a thermosetting resin base material satisfying the condition 1 is referred to as a thermosetting resin base material (B-1)); and condition 2: the thermosetting resin base material (B) is a base material including the thermosetting resin (a), and a porous sheet-shaped base material (b) or a film-shaped base material (c), the thermosetting resin (a) has a viscosity of 1,000 Pa·s or more at 40° C., and the thermosetting resin (a) has a minimum viscosity of 10 Pa·s or less during heating from 30° C. at a temperature rise rate of 1.5° C./min (a thermosetting resin base material satisfying the condition 2 is referred to as a thermosetting resin base material (B-2)).
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: May 11, 2021
    Assignee: Toray Industries, Inc.
    Inventors: Tomohiro Takehara, Masato Honma, Terry Sakurai Brown, Noriyuki Hirano
  • Publication number: 20210106293
    Abstract: An imaging table for a mammography apparatus is formed by a planar body and is to be supported in a cantilever state on a body of the mammography apparatus. At least an X-ray irradiation surface in the planar body has at least one of the following configurations (1) and (2): (1) the X-ray irradiation surface is formed by a carbon fiber composite material including a unidirectional carbon fiber composite material containing carbon fibers and a matrix resin, the carbon fibers being aligned in one direction; and (2) the X-ray irradiation surface is formed by a skin material and a resin sheet, the skin material including a carbon fiber composite material containing continuous fibers and a matrix resin, the resin sheet being disposed on an inner layer side from the skin material.
    Type: Application
    Filed: March 20, 2019
    Publication date: April 15, 2021
    Applicant: Toray Industries, Inc.
    Inventors: Tomohiro Takehara, Mitsushige Hamaguchi, Masato Honma
  • Publication number: 20210030376
    Abstract: An imaging table to be supported in a cantilever state on an X-ray imaging apparatus, includes a planar body including an opening portion in a surface to be connected to the apparatus, and a coupling member to be connected to the apparatus. The planar body includes a first member forming a top surface including an X-ray irradiation surface, and a second member forming a bottom surface opposed to the X-ray irradiation surface and a standing wall portion erectly provided on an outer circumference of the bottom surface. The second member is bonded to the first member in the standing wall portion. The first member and the coupling member are bonded to each other. The first member has an aluminum-equivalent X-ray transmission dose of 0.5 mmAL or less at any point in the X-ray irradiation surface.
    Type: Application
    Filed: March 20, 2019
    Publication date: February 4, 2021
    Applicant: Toray Industries, Inc.
    Inventors: Tomohiro Takehara, Mitsushige Hamaguchi, Masato Honma
  • Patent number: 10822463
    Abstract: A resin supply material is used for molding a fiber-reinforced resin and includes a continuous porous material and a resin. The continuous porous material has a bending resistance Grt of 10 mN·cm or more at 23° C., and a bending resistance ratio Gr of 0.7 or less, the bending resistance ratio Gr being expressed by the formula: Gr=Gmt/Grt Gmt: bending resistance of continuous porous material at 70° C.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: November 3, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Tomohiro Takehara, Satoshi Seike, Masato Honma, Takashi Fujioka, Satomi Hiasa
  • Patent number: 10800894
    Abstract: A resin supply material used for press molding or vacuum-pressure molding of a fiber-reinforced resin includes a reinforcing fiber base material and a thermosetting resin, wherein a tensile rupture strain of the reinforcing fiber base material is 1% or more at temperature T, and/or a tensile strength of the reinforcing fiber base material is 0.5 MPa or more at the temperature T, wherein Temperature T is a temperature at which the viscosity of the thermosetting resin is minimum in heating of the thermosetting resin at a temperature elevation rate of 1.5° C./minute from 40° C.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: October 13, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Tomohiro Takehara, Satoshi Seike, Masato Honma, Satomi Hiasa
  • Publication number: 20190054706
    Abstract: A method of producing a fiber reinforced composite material satisfies condition 1: a thermosetting resin base material (B) includes a thermosetting resin (a) and a nonwoven fabric-shaped base material (a thermosetting resin base material satisfying the condition 1 is referred to as a thermosetting resin base material (B-1)); and condition 2: the thermosetting resin base material (B) is a base material including the thermosetting resin (a), and a porous sheet-shaped base material (b) or a film-shaped base material (c), the thermosetting resin (a) has a viscosity of 1,000 Pa·s or more at 40° C., and the thermosetting resin (a) has a minimum viscosity of 10 Pa·s or less during heating from 30° C. at a temperature rise rate of 1.5° C./min (a thermosetting resin base material satisfying the condition 2 is referred to as a thermosetting resin base material (B-2)).
    Type: Application
    Filed: February 14, 2017
    Publication date: February 21, 2019
    Inventors: Tomohiro Takehara, Masato Honma, Terry Sakurai Brown, Noriyuki Hirano
  • Publication number: 20180244879
    Abstract: A resin supply material used for press molding or vacuum-pressure molding of a fiber-reinforced resin, the resin supply material including a continuous porous material and a thermosetting resin, wherein an average pore cross-sectional area ratio P expressed by formula (I) is 1.1 or more: P=AII/AI ??(I) AI: average pore cross-sectional area in region I AII: average pore cross-sectional area in region II Region I: region occupying 10% of total volume of continuous porous material from surface layer on both surfaces thereof Region II: whole region of continuous porous material.
    Type: Application
    Filed: February 24, 2016
    Publication date: August 30, 2018
    Inventors: Tomohiro Takehara, Satoshi Seike, Masato Honma, Naokichi Imai, Satomi Hiasa
  • Publication number: 20180066118
    Abstract: A resin supply material is used for molding a fiber-reinforced resin and includes a continuous porous material and a resin. The continuous porous material has a bending resistance Grt of 10 mN·cm or more at 23° C., and a bending resistance ratio Gr of 0.7 or less, the bending resistance ratio Gr being expressed by the formula: Gr=Gmt/Grt Gmt: bending resistance of continuous porous material at 70° C.
    Type: Application
    Filed: February 24, 2016
    Publication date: March 8, 2018
    Inventors: Tomohiro Takehara, Satoshi Seike, Masato Honma, Takashi Fujioka, Satomi Hiasa
  • Publication number: 20180044488
    Abstract: A resin supply material used for press molding or vacuum-pressure molding of a fiber-reinforced resin includes a reinforcing fiber base material and a thermosetting resin, wherein a tensile rupture strain of the reinforcing fiber base material is 1% or more at temperature T, and/or a tensile strength of the reinforcing fiber base material is 0.5 MPa or more at the temperature T, wherein Temperature T is a temperature at which the viscosity of the thermosetting resin is minimum in heating of the thermosetting resin at a temperature elevation rate of 1.5° C./minute from 40° C.
    Type: Application
    Filed: February 24, 2016
    Publication date: February 15, 2018
    Inventors: Tomohiro Takehara, Satoshi Seike, Masato Honma, Satomi Hiasa
  • Publication number: 20180044489
    Abstract: A resin supply material is used for molding a fiber-reinforced resin, includes reinforcing fibers and a resin, wherein a fiber weight content Wfi of the reinforcing fibers as expressed by formula (I) is 30% or less, and/or a fiber volume content Vfi of the reinforcing fibers as expressed by formula (II) is 20% or less Wfi=Wf1/(Wf1+Wr1)×100(%)??(I) Wf1: fiber weight (g) in resin supply material, Wr1: resin weight (g) in resin supply material Vfi=Vf1/Vp1×100(%)??(II) Vf1: fiber volume (mm3) in resin supply material, Vp1: volume (mm3) of resin supply material.
    Type: Application
    Filed: February 24, 2016
    Publication date: February 15, 2018
    Inventors: Tomohiro Takehara, Satoshi Seike, Masato Honma, Satomi Hiasa
  • Publication number: 20170239895
    Abstract: A production method for a fiber reinforced composite material includes heating a preform formed by laminating a prepreg layer (I) including a reinforcement fiber (A) and a thermosetting resin (B-1) with a resin layer (II) including a thermosetting resin (B-2) and a solid additive (C) to cure the thermosetting resin (B-1) and the thermosetting resin (B-2), the cured resin layer (II?) formed by curing the resin layer (II) having an average thickness of 35 ?m or more and 300 ?m or less.
    Type: Application
    Filed: October 8, 2015
    Publication date: August 24, 2017
    Inventors: Tomohiro Takehara, Satoshi Seike, Masato Honma, Satomi Matsuo