Patents by Inventor Hirofumi IYO

Hirofumi IYO 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: 11787086
    Abstract: A molding method for a composite sheet used for manufacturing a thermosetting resin prepreg sheet in which a thermosetting resin material is impregnated into a fiber sheet includes: bringing a resin transfer sheet in which the thermosetting resin material of a predetermined thickness is carried on one surface of a transfer sheet into contact with one surface of the fiber sheet to be stacked on the fiber sheet. The resin transfer sheet and the fiber sheet in the stacked state are subjected to a heating treatment or heating and pressurizing treatment. The resin transfer sheet and the fiber sheet in the heated and stacked state is subjected to a cooling treatment or cooling and pressurizing treatment so that the thermosetting resin material is transferred to the fiber sheet and the thermosetting resin material is made to adhere to one surface side of the fiber sheet.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: October 17, 2023
    Assignee: FUKUI PREFECTURAL GOVERNMENT
    Inventors: Kazumasa Kawabe, Kohei Yamada, Keiichi Kondo, Hirofumi Iyo, Shin Kaechi
  • Patent number: 11597168
    Abstract: The present invention is intended to provide automated lamination method and device that can efficiently perform automated lamination by using a thin-layer tape. A thin-layer tape automated lamination device 1 includes a provisional formation unit 2 configured to form lamination tapes having thicknesses different from each other by laminating a plurality of thin-layer tapes each having a thickness of 5 ?m to 80 ?m, and a lamination-shaping unit 3 configured to laminate and shape each formed lamination tape in a lamination region of a basal body surface.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: March 7, 2023
    Assignee: FUKUI PREFECTURAL GOVERNMENT
    Inventors: Kazumasa Kawabe, Kohei Yamada, Keiichi Kondo, Hirofumi Iyo, Shin Kaechi
  • Patent number: 11548241
    Abstract: According to one implementation, a fiber width adjustment device includes: a feeder and an adjuster. The feeder feeds a tape material in a length direction of the tape material. The tape material consists of fibers for a fiber reinforced resin after or before the fibers are impregnated with a resin. The adjuster has a path for the tape material. The path is formed by at least a bottom and a pair of wall surfaces. The interval of the wall surfaces decreased gradually. The width of the tape material which passed the path is changed by adjusting a part of the path. The tape material passes through the part of the path while contacting with the bottom and the wall surfaces.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: January 10, 2023
    Assignees: SUBARU CORPORATION, FUKUI PREFECTURAL GOVERNMENT
    Inventors: Natsumi Yasukochi, Kei Koiwai, Shigekazu Uchiyama, Kazumasa Kawabe, Keiichi Kondo, Hirofumi Iyo
  • Patent number: 11332586
    Abstract: A quasi-isotropic reinforced sheet material T formed by integrating a plurality of chopped semi prepreg sheet materials C including a reinforced fiber material and a thermoplastic resin material set in an unimpregnated state such that fiber directions of the reinforced fiber materials are oriented randomly in the two-dimensional direction. The average number of fibers in a thickness direction for materials C ranges is from two to ten and a thickness “t”, relative to the thickness (tp) in an impregnated state, is in a range of tp<t?2×tp. A layered body M is obtained by bonding and integrating the materials C in a state where fiber directions of the reinforced fiber materials are oriented randomly in a two-dimensional direction and the materials C overlap such that the average number of the materials C in the thickness direction is set in a range from two to ten.
    Type: Grant
    Filed: July 3, 2015
    Date of Patent: May 17, 2022
    Assignee: FUKUI PREFECTURAL GOVERNMENT
    Inventors: Kazumasa Kawabe, Keiichi Kondo, Hirofumi Iyo
  • Publication number: 20210206025
    Abstract: A molding method for a composite sheet used for manufacturing a thermosetting resin prepreg sheet in which a thermosetting resin material is impregnated into a fiber sheet includes: bringing a resin transfer sheet in which the thermosetting resin material of a predetermined thickness is carried on one surface of a transfer sheet into contact with one surface of the fiber sheet to be stacked on the fiber sheet. The resin transfer sheet and the fiber sheet in the stacked state are subjected to a heating treatment or heating and pressurizing treatment. The resin transfer sheet and the fiber sheet in the heated and stacked state is subjected to a cooling treatment or cooling and pressurizing treatment so that the thermosetting resin material is transferred to the fiber sheet and the thermosetting resin material is made to adhere to one surface side of the fiber sheet.
    Type: Application
    Filed: September 20, 2019
    Publication date: July 8, 2021
    Applicant: FUKUI PREFECTURAL GOVERNMENT
    Inventors: Kazumasa KAWABE, Kohei YAMADA, Keiichi KONDO, Hirofumi IYO, Shin KAECHI
  • Publication number: 20210206122
    Abstract: The present invention is intended to provide automated lamination method and device that can efficiently perform automated lamination by using a thin-layer tape. A thin-layer tape automated lamination device 1 includes a provisional formation unit 2 configured to form lamination tapes having thicknesses different from each other by laminating a plurality of thin-layer tapes each having a thickness of 5 ?m to 80 ?m, and a lamination-shaping unit 3 configured to laminate and shape each formed lamination tape in a lamination region of a basal body surface.
    Type: Application
    Filed: October 3, 2019
    Publication date: July 8, 2021
    Applicant: FUKUI PREFECTURAL GOVERNMENT
    Inventors: Kazumasa KAWABE, Kohei YAMADA, Keiichi KONDO, Hirofumi IYO, Shin KAECHI
  • Publication number: 20200190700
    Abstract: According to one implementation, a fiber width adjustment device includes: a feeder and an adjuster. The feeder feeds a tape material in a length direction of the tape material. The tape material consists of fibers for a fiber reinforced resin after or before the fibers are impregnated with a resin. The adjuster has a path for the tape material. The path is formed by at least a bottom and a pair of wall surfaces. The interval of the wall surfaces decreased gradually. The width of the tape material which passed the path is changed by adjusting a part of the path. The tape material passes through the part of the path while contacting with the bottom and the wall surfaces.
    Type: Application
    Filed: October 11, 2019
    Publication date: June 18, 2020
    Inventors: Natsumi YASUKOCHI, Kei KOIWAI, Shigekazu UCHIYAMA, Kazumasa KAWABE, Keiichi KONDO, Hirofumi IYO
  • Publication number: 20180215110
    Abstract: The purpose of the present invention is to provide a production method for a fiber reinforced resin sheet material, the method being capable of continuously and stably obtaining the fiber reinforced resin sheet material by using a fiber sheet material and a resin sheet material and melting the resin sheet material and impregnating or semi-impregnating the same into the fiber sheet material.
    Type: Application
    Filed: July 28, 2016
    Publication date: August 2, 2018
    Applicant: FUKUI PREFECTURAL GOVERNMENT
    Inventors: Kazumasa KAWABE, Kohei YAMADA, Keiichi KONDO, Hirofumi IYO
  • Publication number: 20170183465
    Abstract: A quasi-isotropic reinforced sheet material T formed by integrating a plurality of chopped semi prepreg sheet materials C including a reinforced fiber material and a thermoplastic resin material set in an unimpregnated state such that fiber directions of the reinforced fiber materials are oriented randomly in the two-dimensional direction. The average number of fibers in a thickness direction for materials C ranges is from two to ten and a thickness “t”, relative to the thickness (tp) in an impregnated state, is in a range of tp<t?2×tp. A layered body M is obtained by bonding and integrating the materials C in a state where fiber directions of the reinforced fiber materials are oriented randomly in a two-dimensional direction and the materials C overlap such that the average number of the materials C in the thickness direction is set in a range from two to ten.
    Type: Application
    Filed: July 3, 2015
    Publication date: June 29, 2017
    Applicant: FUKUI PREFECTURAL GOVERNMENT
    Inventors: Kazumasa KAWABE, Keiichi KONDO, Hirofumi IYO