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公开(公告)号：US20200305558A1
公开(公告)日：2020-10-01
申请号：US16828460
申请日：2020-03-24
Applicant: YKK Corporation
Inventor： Makoto Takekawa , Yoshiyuki Fukuhara , Hiroyuki Yamashita , Kyoichi Yuki
Abstract: Provided is a molded surface fastener capable of stably having high engaging strength with respect to a loop member. The molded surface fastener of the present invention includes a base portion and a plurality of engaging elements provided with a stem portion and an engaging portion, and is formed of synthetic resin containing lubricant at 0.15 wt % or more and 1.00 wt % or less. A top end surface of the engaging element is formed to be flat, and the engaging portion has a hanging portion which hangs down obliquely downward toward the base portion.
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公开(公告)号：US11559114B2
公开(公告)日：2023-01-24
申请号：US16828460
申请日：2020-03-24
Applicant: YKK Corporation
Inventor： Makoto Takekawa , Yoshiyuki Fukuhara , Hiroyuki Yamashita , Kyoichi Yuki
Abstract: Provided is a molded surface fastener capable of stably having high engaging strength with respect to a loop member. The molded surface fastener of the present invention includes a base portion and a plurality of engaging elements provided with a stem portion and an engaging portion, and is formed of synthetic resin containing lubricant at 0.15 wt % or more and 1.00 wt % or less. A top end surface of the engaging element is formed to be flat, and the engaging portion has a hanging portion which hangs down obliquely downward toward the base portion.
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公开(公告)号：US20210267320A1
公开(公告)日：2021-09-02
申请号：US17257883
申请日：2018-07-09
Applicant: YKK Corporation
Inventor： Hiroyuki Yamashita , Yoshiyuki Fukuhara , Ryosuke Tanimoto , Makoto Takekawa , Shoichi Yokoyama
IPC: A44B18/00
Abstract: In a molded surface fastener in which an engaging element includes at least two engaging pawl portions protruded outward, a plurality of the engaging elements is disposed in a line along a machine direction to form an element row, a plurality of the element rows is arranged side by side in a cross direction, each of the engaging elements has, as the engaging pawl portions, at least a pair of symmetrical engaging pawl portions which are disposed each other at symmetrical positions in the cross direction and are respectively protruded in the cross direction sides, and a plurality of the engaging elements is arranged in a staggered pattern. Thereby, the molded surface fastener can appropriately and stably exert desired performance such as peel strength with respect to more types of non-woven fabrics.
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公开(公告)号：US20240251916A1
公开(公告)日：2024-08-01
申请号：US18566966
申请日：2021-06-11
Applicant: YKK Corporation
Inventor： Takumi Mochizuki , Makoto Takekawa , Yoshiyuki Fukuhara , Isamu Michihata , Wataru Kuriyama
IPC: A44B18/00
CPC classification number: A44B18/0049 , A44B18/0003
Abstract: In a surface fastener in plan view seen from above the engaging elements, when an area of an engaging head portion of one of the engaging elements is defined as a head portion area, the head portion area of each of the engaging elements is 22000 μm2 or greater and 50000 μm2 or less. According to the surface fastener, it is possible to obtain a large peel strength with respect to a female surface fastener.
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公开(公告)号：US11284681B2
公开(公告)日：2022-03-29
申请号：US16500090
申请日：2017-04-03
Applicant: YKK Corporation
Inventor： Makoto Takekawa , Yoshiyuki Fukuhara , Hiroyuki Yamashita , Isamu Michihata , Yui Hashimoto
Abstract: Provided is a molding apparatus used for manufacturing a molded surface fastener wherein a die wheel driving rotationally has a concentric double cylinder structure provided with an outer side cylindrical body that has provided therethrough a plurality of penetrating holes, and an inner side cylindrical body that has formed, in the outer peripheral surface thereof, a plurality of grooved portions, the grooved portions located in the inner side cylindrical body include a use grooved portion that intersects with the penetrating hole of the outer side cylindrical body and a non-use grooved portion that is covered by the inner peripheral surface of the outer side cylindrical body. By using this molding apparatus obtained is a molded surface fastener in which a plurality of types of engaging elements having different shapes in a plan view are arranged cyclically in a reference direction.
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Patent Agency Ranking
公开(公告)号：US20180368534A1
公开(公告)日：2018-12-27
申请号：US16061887
申请日：2016-12-20
Applicant: YKK Corporation
Inventor： Yoshiyuki Fukuhara , Hiroyuki Yamashita , Makoto Takekawa , Takahiro Fuse
IPC: A44B18/00
Abstract: In this molded surface fastener, an engaging element includes a columnar stem portion, and micro pawl portions protruding outward from an upper end outer peripheral edge of the stem portion in a plan view of the engaging elements. A pawl width dimension of the micro pawl portions is smaller than a line segment connecting two points on the upper end outer peripheral edge of the stem portion. The micro pawl portions protrude toward a base portion. This molded surface fastener has a high peel strength and a shear strength with respect to a female surface fastener.
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公开(公告)号：US11633021B2
公开(公告)日：2023-04-25
申请号：US17160065
申请日：2021-01-27
Applicant: YKK Corporation
Inventor： Makoto Takekawa , Yoshiyuki Fukuhara , Hiroyuki Yamashita , Isamu Michihata , Yui Hashimoto
Abstract: Provided is a molding apparatus used for manufacturing a molded surface fastener wherein a die wheel driving rotationally has a concentric double cylinder structure provided with an outer side cylindrical body that has provided therethrough a plurality of penetrating holes, and an inner side cylindrical body that has formed, in the outer peripheral surface thereof, a plurality of grooved portions, the grooved portions located in the inner side cylindrical body include a use grooved portion that intersects with the penetrating hole of the outer side cylindrical body and a non-use grooved portion that is covered by the inner peripheral surface of the outer side cylindrical body. By using this molding apparatus obtained is a molded surface fastener in which a plurality of types of engaging elements having different shapes in a plan view are arranged cyclically in a reference direction.
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公开(公告)号：US11533971B2
公开(公告)日：2022-12-27
申请号：US17257883
申请日：2018-07-09
Applicant: YKK Corporation
Inventor： Hiroyuki Yamashita , Yoshiyuki Fukuhara , Ryosuke Tanimoto , Makoto Takekawa , Shoichi Yokoyama
IPC: A44B18/00
Abstract: In a molded surface fastener in which an engaging element includes at least two engaging pawl portions protruded outward, a plurality of the engaging elements is disposed in a line along a machine direction to form an element row, a plurality of the element rows is arranged side by side in a cross direction, each of the engaging elements has, as the engaging pawl portions, at least a pair of symmetrical engaging pawl portions which are disposed each other at symmetrical positions in the cross direction and are respectively protruded in the cross direction sides, and a plurality of the engaging elements is arranged in a staggered pattern. Thereby, the molded surface fastener can appropriately and stably exert desired performance such as peel strength with respect to more types of non-woven fabrics.
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公开(公告)号：US11363857B2
公开(公告)日：2022-06-21
申请号：US16807341
申请日：2020-03-03
Applicant: YKK Corporation
Inventor： Yoshiyuki Fukuhara , Hiroyuki Yamashita , Makoto Takekawa , Takahiro Fuse
Abstract: In this molded surface fastener, an engaging element includes a columnar stem portion, and micro pawl portions protruding outward from an upper end outer peripheral edge of the stem portion in a plan view of the engaging elements. A pawl width dimension of the micro pawl portions is smaller than a line segment connecting two points on the upper end outer peripheral edge of the stem portion. The micro pawl portions protrude toward a base portion. This molded surface fastener has a high peel strength and a shear strength with respect to a female surface fastener.
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公开(公告)号：US11291275B2
公开(公告)日：2022-04-05
申请号：US16061887
申请日：2016-12-20
Applicant: YKK Corporation
Inventor： Yoshiyuki Fukuhara , Hiroyuki Yamashita , Makoto Takekawa , Takahiro Fuse
Abstract: In this molded surface fastener, an engaging element includes a columnar stem portion, and micro pawl portions protruding outward from an upper end outer peripheral edge of the stem portion in a plan view of the engaging elements. A pawl width dimension of the micro pawl portions is smaller than a line segment connecting two points on the upper end outer peripheral edge of the stem portion. The micro pawl portions protrude toward a base portion. This molded surface fastener has a high peel strength and a shear strength with respect to a female surface fastener.
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