Patents by Inventor Satoshi Katsuya

Satoshi Katsuya 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: 11370195
    Abstract: Provided is a multilayer composite that has flame retardancy and low smoking property as well as has high physical characteristics. The multilayer composite has a multilayer structure and includes at least one core layer and at least one skin layer, wherein the multilayer composite satisfies all the following conditions (A) to (D): (A) the core layer is a composite including discontinuous reinforcing fibers and a first thermoplastic resin, in which the discontinuous reinforcing fibers are randomly dispersed and bonded with the first thermoplastic resin at least at intersections of the discontinuous reinforcing fibers; (B) the skin layer is a composite including continuous reinforcing fibers and a second thermoplastic resin, in which the continuous reinforcing fibers are impregnated with the second thermoplastic resin; (C) each of the first and the second thermoplastic resins has a limiting oxygen index of 30 or higher; and (D) the first and the second thermoplastic resins are miscible with each other.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: June 28, 2022
    Assignee: KURARAY CO., LTD.
    Inventors: Satoshi Katsuya, Yosuke Washitake, Ryokei Endo
  • Publication number: 20210394406
    Abstract: Provided are a space filling material and a space filling structure capable of filling a predetermined space for various purposes, and method for using those. A space filling material (11) includes reinforcing fibers as an expansion material and a resin. The reinforcing fibers form a plurality of intersections and are bonded with the resin at at least one of the intersections. Heating of the space filling material causes an expansion stress in at least a thickness direction (X) such that the space filling material fills a predetermined space (13). For example, the space filling material may contain the resin at a volume ratio of 15 to 95 vol % based on a total volume of the reinforcing fibers and the resin.
    Type: Application
    Filed: September 2, 2021
    Publication date: December 23, 2021
    Applicant: KURARAY CO., LTD.
    Inventors: Satoshi KATSUYA, Ryokei ENDO, Yosuke WASHITAKE, Shunsuke SUIKO
  • Publication number: 20210283805
    Abstract: Disclosed is a fiber-reinforced resin composite body (1) including: a thermosetting resin (2); a plurality of reinforcing fiber layers (4) stacked in the thermosetting resin (2); and a thermoplastic resin (5) dispersed in a form of particles in the thermosetting resin (2) between the plurality of reinforcing fiber layers (4).
    Type: Application
    Filed: June 26, 2019
    Publication date: September 16, 2021
    Applicant: KURARAY CO., LTD.
    Inventors: Satoshi KATSUYA, Yosuke WASHITAKE, Ryokei ENDO
  • Publication number: 20200277456
    Abstract: Provided is an expansive refractory material that not only has excellent fire resistance but also can provide a heat insulating function for protecting a content by expanding to form a heat insulating layer when the refractory material is brought close to a heat source or comes into contact with flame. The refractory material at least includes: discontinuous reinforcing fibers having a thermal conductivity of 4 W/(m·K) or higher; and a flame-retardant thermoplastic resin, wherein the discontinuous reinforcing fibers are dispersed in the refractory material. The refractory material has a post-expansion porosity of 30% or higher.
    Type: Application
    Filed: May 19, 2020
    Publication date: September 3, 2020
    Applicant: KURARAY CO ., LTD.
    Inventors: Satoshi KATSUYA, Yosuke Washitake, Ryokei Endo, Shunsuke Suiko
  • Publication number: 20200224345
    Abstract: The purpose of the present invention is to provide a liquid permeable body comprising a porous composite that has different liquid permeabilities between in the in-plane direction and in the out-of-plane direction as well as excellent mechanical properties. The liquid permeable body comprises a porous composite having a structure in which discontinuous reinforcing fibers are dispersed; the dispersed discontinuous reinforcing fibers are bonded with a thermoplastic resin at at least an intersection thereof; voids of continuous openings form a void content of from 30 to 90%; an average value ? of fiber orientation angles is from 0 to 40° in an in-plane direction of the discontinuous reinforcing fibers; and an average value ? of fiber orientation angles is from 0 to 25° in an out-of-plane direction of the discontinuous reinforcing fibers.
    Type: Application
    Filed: March 19, 2020
    Publication date: July 16, 2020
    Applicant: Kuraray Co., Ltd
    Inventors: Satoshi KATSUYA, Yosuke WASHITAKE, Ryokei ENDO
  • Patent number: 10683589
    Abstract: Provided is a polyetherimide-based fiber containing a polyetherimide resin and carbon black dispersed in the resin, wherein the content of the carbon black is 0.03 wt % or greater; the carbon black has a primary particle number-mean particle size of from 30 nm to 500 nm; and the fiber has a weight reduction rate of less than 0.5% around the glass transition point (Tg) of the polyetherimide resin, where the weight reduction rate is defined by a following formula (1). Weight reduction rate (%)={[(fiber weight at temperature T1)?(fiber weight at temperature T2)]/(fiber weight at temperature T1)}×100??(1) Where T1 denotes a temperature (Tg?15° C.) that is 15° C. lower than the glass transition point (glass transition temperature) of the polyetherimide resin, and T2 denotes a temperature (Tg+25° C.) that is 25° C. higher than the glass transition point.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: June 16, 2020
    Assignee: KURARAY CO., LTD.
    Inventors: Tetsuya Okamoto, Akihiro Uehata, Satoshi Katsuya
  • Publication number: 20200055276
    Abstract: Provided is a multilayer composite that has flame retardancy and low smoking property as well as has high physical characteristics. The multilayer composite has a multilayer structure and includes at least one core layer and at least one skin layer, wherein the multilayer composite satisfies all the following conditions (A) to (D): (A) the core layer is a composite including discontinuous reinforcing fibers and a first thermoplastic resin, in which the discontinuous reinforcing fibers are randomly dispersed and bonded with the first thermoplastic resin at least at intersections of the discontinuous reinforcing fibers; (B) the skin layer is a composite including continuous reinforcing fibers and a second thermoplastic resin, in which the continuous reinforcing fibers are impregnated with the second thermoplastic resin; (C) each of the first and the second thermoplastic resins has a limiting oxygen index of 30 or higher; and (D) the first and the second thermoplastic resins are miscible with each other.
    Type: Application
    Filed: October 23, 2019
    Publication date: February 20, 2020
    Applicant: KURARAY CO., LTD.
    Inventors: Satoshi Katsuya, Yosuke Washitake, Ryokei Endo
  • Publication number: 20170191191
    Abstract: Provided is a polyetherimide-based fiber containing a polyetherimide resin and carbon black dispersed in the resin, wherein the content of the carbon black is 0.03 wt % or greater; the carbon black has a primary particle number-mean particle size of from 30 nm to 500 nm; and the fiber has a weight reduction rate of less than 0.5% around the glass transition point (Tg) of the polyetherimide resin, where the weight reduction rate is defined by a following formula (1). Weight reduction rate (%)={[(fiber weight at temperature T1)?(fiber weight at temperature T2)]/(fiber weight at temperature T1)}×100??(1) Where T1 denotes a temperature (Tg?15° C.) that is 15° C. lower than the glass transition point (glass transition temperature) of the polyetherimide resin, and T2 denotes a temperature (Tg+25° C.) that is 25° C. higher than the glass transition point.
    Type: Application
    Filed: March 24, 2017
    Publication date: July 6, 2017
    Applicant: KURARAY CO., LTD.
    Inventors: Tetsuya OKAMOTO, Akihiro UEHATA, Satoshi KATSUYA
  • Patent number: 7556046
    Abstract: A method of reducing the content of TSNA in tobacco leaves, comprising treating tobacco leaves with a microorganism which has the capability to reduce TSNA and which is selected from the group consisting of Sphingomonas paucimobilis and Pseudomonas fluorescens.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: July 7, 2009
    Assignee: Japan Tobacco Inc.
    Inventors: Kazuharu Koga, Satoshi Katsuya
  • Patent number: 7549426
    Abstract: A method of reducing the content of nitrite and/or nitrosamine in tobacco leaves, having treating the tobacco leaves with a microorganism belonging to Agrobacterium genus and having the denitrifying ability.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: June 23, 2009
    Assignee: Japan Tobacco Inc.
    Inventors: Kazuharu Koga, Satoshi Katsuya
  • Patent number: 7549425
    Abstract: A method of reducing the content of TSNA in tobacco leaves, comprising treating the tobacco leaves with a microorganism having no nitrate-reducing ability but having the ability of growth-competition with a microorganism belonging to Enterobacter or Pantoea genus.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: June 23, 2009
    Assignee: Japan Tobacco Inc.
    Inventors: Kazuharu Koga, Satoshi Katsuya
  • Publication number: 20060225750
    Abstract: A method of reducing the content of TSNA in tobacco leaves, comprising treating the tobacco leaves with a microorganism having no nitrate-reducing ability but having the ability of growth-competition with a microorganism belonging to Enterobacter or Pantoea genus.
    Type: Application
    Filed: March 31, 2005
    Publication date: October 12, 2006
    Inventors: Kazuharu Koga, Satoshi Katsuya
  • Publication number: 20060225751
    Abstract: A method of reducing the content of nitrite and/or nitrosamine in tobacco leaves, comprising treating the tobacco leaves with a microorganism belonging to Agrobacterium genus and having the denitrifying ability.
    Type: Application
    Filed: March 31, 2005
    Publication date: October 12, 2006
    Inventors: Kazuharu Koga, Satoshi Katsuya
  • Publication number: 20050115576
    Abstract: A method of reducing the content of TSNA in tobacco leaves, comprising treating tobacco leaves with a microorganism which has the capability to reduce TSNA and which is selected from the group consisting of Sphingomonas paucimobilis and Pseudomonas fluorescens.
    Type: Application
    Filed: November 5, 2004
    Publication date: June 2, 2005
    Inventors: Kazuharu Koga, Satoshi Katsuya