Patents by Inventor Kazumasa Kawabe

Kazumasa Kawabe 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
  • Publication number: 20220266546
    Abstract: A method and apparatus for manufacturing a formed article of a composite material. The formed article is manufactured by heating and pressurizing a thermoplastic resin material and fabric material. The method includes a preforming process in which the material to be formed is put in a preforming mold with a release sheet arranged between the material and a part of the preforming mold. The material is heated and pressurized to impregnate the thermoplastic resin material into the fabric material, thus forming an impregnated intermediate material. Then, in a transport process the impregnated intermediate material in a heated state is taken out from the preforming mold with the release sheet left attached thereto, and transported. Finally there is a forming process in which the impregnated intermediate material is accommodated in the forming mold and the impregnated intermediate material is formed into the formed article of the composite material by pressurizing.
    Type: Application
    Filed: March 17, 2021
    Publication date: August 25, 2022
    Applicant: FUKUI PREFECTURAL GOVERNMENT
    Inventors: Kazumasa KAWABE, Shin KAECHI
  • 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
  • Patent number: 10322530
    Abstract: A high-quality multilayer thermoplastic-resin-reinforced sheet material having excellent mechanical properties and drapeability in which a thermoplastic resin excellent in recycling efficiency and shock resistance is used as a matrix. A thermoplastic-resin multilayer reinforced molding formed of the multilayer thermoplastic-resin-reinforced sheet material, in which the high quality and the mechanical properties are maintained.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: June 18, 2019
    Assignee: FUKUI PREFECTURAL GOVERNMENT
    Inventor: Kazumasa Kawabe
  • 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
  • Patent number: 9895867
    Abstract: The present invention has an object to provide a laminated molded body in which a thin fiber reinforced layer is laminated and having a favorable strength characteristic. The laminated molded body (1) includes a laminated portion (a laminated portion of SR1 on an upper side and SR1, for example) in which fiber reinforced layers SR1 to SRn, each having a thickness of 20 to 80 ?m in which a reinforcing fiber material is dispersed in a thermosetting resin material which serves as a matrix, are laminated, and a laminated portion in which a resin layer is laminated between the fiber reinforced layers (a laminated portion of SR2 on the upper side, TP1, and SR3, for example).
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: February 20, 2018
    Assignee: FUKUI PREFECTURAL GOVERNMENT
    Inventors: Kazumasa Kawabe, Hideki Sasayama, Keiichi Kondo
  • Patent number: 9828702
    Abstract: A method and a device for opening a fiber bundle, capable of performing a fluctuating operation, at a high speed, of pushing a part of a conveyed fiber bundle by a contact member into a stress state and then separating the contact member from the fiber bundle so as to temporarily relax the fiber bundle, and also capable of reducing damage to the fiber bundle.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: November 28, 2017
    Assignees: FUKUI PREFECTURAL GOVERNMENT, HOKUSHIN CO., LTD
    Inventors: Kazumasa Kawabe, Shigeru Tomoda, Kenshiro Koizumi
  • 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
  • Publication number: 20160279897
    Abstract: A thermoplastic resin reinforced sheet material that easily corresponds to a Vf value and that is prevented from being curled, and a method for manufacturing such a thermoplastic resin reinforced sheet material. The thermoplastic resin reinforced sheet material (1) includes: a reinforced fiber sheet material (2) which is formed into a sheet shape by drawing and aligning a plurality of reinforcing fibers in a predetermined direction and whose weight per unit area is 80 g/m2 or less; a fabric (3) which is formed of a thermoplastic resin fiber material having a fineness of 5.6 decitex to 84 decitex and whose basis weight per unit area is 5 g/m2 to 90 g/m2; and a thermoplastic resin material for bonding (4) which is melted or softened at a temperature lower than a melting temperature of the fabric (3) and which discretely causes the reinforced fiber sheet material (2) and the fabric (3) to adhere.
    Type: Application
    Filed: July 1, 2014
    Publication date: September 29, 2016
    Applicants: HATTA TATEAMI CO., LTD., FUKUI PREFECTURAL GOVERNMENT, TOYO SENKO & CO., LTD.
    Inventors: Hiromi YAMAZAKI, Makoto IHARA, Masao YAMAMOTO, Daizo YOSHIMURA, Kazumasa KAWABE, Hideki SASAYAMA
  • Publication number: 20160083873
    Abstract: A method and a device for opening a fiber bundle, capable of performing a fluctuating operation, at a high speed, of pushing a part of a conveyed fiber bundle by a contact member into a stress state and then separating the contact member from the fiber bundle so as to temporarily relax the fiber bundle, and also capable of reducing damage to the fiber bundle.
    Type: Application
    Filed: April 19, 2013
    Publication date: March 24, 2016
    Applicants: HOKUSHIN CO., LTD, FUKUI PREFECTURAL GOVERNMENT
    Inventors: Kazumasa KAWABE, Shigeru TOMODA, Kenshiro KOIZUMI
  • Publication number: 20160039185
    Abstract: The present invention has an object to provide a laminated molded body in which a thin fiber reinforced layer is laminated and having a favorable strength characteristic. The laminated molded body (1) includes a laminated portion (a laminated portion of SR1 on an upper side and SR1, for example) in which fiber reinforced layers SR1 to SRn, each having a thickness of 20 to 80 ?m in which a reinforcing fiber material is dispersed in a thermosetting resin material which serves as a matrix, are laminated, and a laminated portion in which a resin layer is laminated between the fiber reinforced layers (a laminated portion of SR2 on the upper side, TP1, and SR3, for example).
    Type: Application
    Filed: March 18, 2014
    Publication date: February 11, 2016
    Applicant: FUKUI PREFECTURAL GOVERNMENT
    Inventors: Kazumasa KAWABE, Hideki SASAYAMA, Keiichi KONDO
  • Patent number: 9003619
    Abstract: The present invention has an object to provide a fiber-spreading method which can form a thin spread fiber sheet having a large and uniform spread width by uniformly distributing fibers of a fiber bundle having an increased number of fibers. Since a set of regions Si each including a pair of a fiber-spreading region Ai and an expansion region Bi are arranged in a movable region M set so that the fibers of the fiber bundle can move in the width direction, the fiber-spreading region Ai moving the fibers in the width direction while bending the fibers by letting a fluid pass through the fiber bundle, thereby spreading the fiber bundle to a spread width Wi (i=1, . . .
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: April 14, 2015
    Assignee: Fukui Prefectural Government
    Inventor: Kazumasa Kawabe
  • Publication number: 20120270009
    Abstract: A high-quality multilayer thermoplastic-resin-reinforced sheet material having excellent mechanical properties and drapeability in which a thermoplastic resin excellent in recycling efficiency and shock resistance is used as a matrix. A thermoplastic-resin multilayer reinforced molding formed of the multilayer thermoplastic-resin-reinforced sheet material, in which the high quality and the mechanical properties are maintained.
    Type: Application
    Filed: June 1, 2012
    Publication date: October 25, 2012
    Applicant: FUKUI PREFECTURAL GOVERNMENT
    Inventor: Kazumasa KAWABE
  • Publication number: 20120270030
    Abstract: A high-quality multilayer thermoplastic-resin-reinforced sheet material having excellent mechanical properties and drapeability in which a thermoplastic resin excellent in recycling efficiency and shock resistance is used as a matrix. A thermoplastic-resin multilayer reinforced molding formed of the multilayer thermoplastic-resin-reinforced sheet material, in which the high quality and the mechanical properties are maintained.
    Type: Application
    Filed: June 1, 2012
    Publication date: October 25, 2012
    Applicant: FUKUI PREFECTURAL GOVERNMENT
    Inventor: Kazumasa KAWABE
  • Patent number: 8276637
    Abstract: An end of a sheet drawn out form a feeder is clamped by a pair of upper and lower clamping devices of two or more pairs. The sheet is drawn out from the initial position to the end position in a spread state. While the spread sheet is being tentered on pin tenters, another pair of upper and lower clamping devices at the end position is separated from each other and moved along the respective rails into the initial position. The end of the sheet drawn out from the feeder is clamped from above and below at the initial position with the upper and lower clamping devices that has returned to the initial position.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: October 2, 2012
    Assignees: Fukui Prefecture Government, Mitsuya Co., Ltd.
    Inventors: Kazumasa Kawabe, Kichiro Ishida