Patents Assigned to YKK Corporation
  • Patent number: 11633021
    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.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: April 25, 2023
    Assignee: YKK Corporation
    Inventors: Makoto Takekawa, Yoshiyuki Fukuhara, Hiroyuki Yamashita, Isamu Michihata, Yui Hashimoto
  • Patent number: 11627784
    Abstract: Fastener stringer includes a fastener tape provided with a fastener element; and a stop part arranged at an end of the fastener tape. The stop part includes: a magnetic body; an encapsulating member encapsulating the magnetic body; and an injection-molded portion that at least partially covers or surrounds the encapsulating member encapsulating the magnetic body. At least the encapsulating member hinders heat from being transferred to the magnetic body while the injection-molded portion is formed.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: April 18, 2023
    Assignee: YKK Corporation
    Inventors: Yuchen Tung, Kazuo Tamura, Yoshinori Kojima, Jiro Nozaki
  • Patent number: 11571841
    Abstract: A plastic molded product includes a plastic body provided with a plurality of holes, which are recessed in a common depth direction, on a surface of the plastic body. The holes include: an inner surface including an inlet a specific reference plane perpendicular to the depth direction and including at least a portion of the inlet and a depth reference point, which is spaced away from a center point on an inlet side of the specific reference plane toward a bottom side of the hole, the depth reference point being spaced away by a distance equal to ¼ of a maximum value of an inlet side bore diameter on the specific reference plane. A deepmost portion of the inner surface of the hole is in a position which coincides with the reference point or is deeper than the reference point toward the bottom side.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: February 7, 2023
    Assignee: YKK Corporation
    Inventors: Kenichi Yoshie, Ming Yi Huang, Makoto Ueda
  • Patent number: 11559114
    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.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: January 24, 2023
    Assignee: YKK Corporation
    Inventors: Makoto Takekawa, Yoshiyuki Fukuhara, Hiroyuki Yamashita, Kyoichi Yuki
  • Patent number: 11559116
    Abstract: A slider includes a slider body part that includes an upper wing plate and a lower wing plate, a stop tab body, a tab elastic member that biases the stop tab body, a base part integrally formed with the upper wing plate, and an operation cover part rotatably attached to the base part. The operation cover part includes a pressing projecting part that projects from an inner surface of a top plate part, and the pressing projecting part has a configuration in which by rotating the operation cover part, a locked state and an unlocked state can be switched therebetween. Accordingly, since a stop mechanism by the rotation of the operation cover part can be provided in the slider with a relatively simple configuration, the manufacturing cost can be reduced and the productivity can be improved.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: January 24, 2023
    Assignee: YKK Corporation
    Inventors: Yohei Miyazaki, Koji Yamagishi, Yoshikazu Hamada
  • Publication number: 20220408885
    Abstract: Provided is a button attachment tool that can eliminate or reduce rotation of a cap relative to an attachment tool body. A button attachment tool comprises a metal attachment tool body and a synthetic resin cap to which the attachment tool body is coupled. The attachment tool body includes a cylindrical part and a flange part extending radially outward from one axial end of the cylindrical part. The flange part includes a plurality of notches recessed radially inward from a peripheral edge of the flange part. The cap includes a clamping part that is fastened to a radially outer portion of the flange part including the plurality of notches.
    Type: Application
    Filed: December 13, 2019
    Publication date: December 29, 2022
    Applicant: YKK CORPORATION
    Inventors: KATSUSHI KITANO, RYOHEI NAKAWATASE, YUSUKE SAITO, JUN OBUCHI
  • Patent number: 11533971
    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.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: December 27, 2022
    Assignee: YKK Corporation
    Inventors: Hiroyuki Yamashita, Yoshiyuki Fukuhara, Ryosuke Tanimoto, Makoto Takekawa, Shoichi Yokoyama
  • Patent number: 11528966
    Abstract: This molded surface fastener includes: a base portion; right and left outer wall portions arranged on the upper surfaces of the base portion; a plurality of engaging elements arranged between the right and left outer wall portions; and right and left magnetic wall portions arranged between the outer wall portions and the engaging elements. This molded surface fastener is molded by melting and integrating first synthetic resin and second synthetic resin that contains magnetic particles. At least each upper end part of the outer wall portions is formed only of the first synthetic resin, while at least each upper end part of the magnetic wall portions is formed only of the second synthetic resin. Consequently, the right and left magnetic wall portions can be formed into predetermined shapes in a stable manner.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: December 20, 2022
    Assignee: YKK Corporation
    Inventors: Zhiyu Ren, Takayuki Matsui, Yohei Koyama, Jun Hashizume
  • Patent number: 11528967
    Abstract: Provided is a male snap button (10) including a metal male snap body (20), and a fixing member (30) for fixing the male snap body (20) to a fabric (1). The male snap body (20) includes: a male-side engagement part (21) in annular shape capable of being removably engaged with a female-side engagement part (60) of a female snap button (40); and multiple claws (27). The male-side engagement part (21) defines an opening (28) that exposes the fabric (1) inside in a radial direction thereof. A diameter (D1) of the opening (28) is greater than a length (W1) in the radial direction from an outside edge of the opening (28) in the radial direction to an outside edge of the male snap body (20) in the radial direction. The fixing member (30, 30a) includes claw accommodation parts (33) to receive the claws (27).
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: December 20, 2022
    Assignee: YKK CORPORATION
    Inventors: Kota Kanno, Kazunori Somai, Daisuke Hayashi, Kohei Iwata, Nariko Kubota
  • Publication number: 20220395063
    Abstract: A watertight fastener includes a pair of fastener tapes; fastener elements provided on a side of one end edge part along a longitudinal direction of the fastener tapes; and a slider engaging and disengaging the fastener elements. On a surface of the fastener tapes opposite to the fastener elements, a waterproof seal layer is provided along the longitudinal direction at a position at which the fastener elements are provided. A width of the waterproof seal layer in a direction orthogonal to the longitudinal direction is narrower than a width of the slider. With the pair of fastener tapes being closed by engagement of the fastener elements, end parts of the waterproof seal layer close to the end edge parts of the fastener tapes come into contact with each other without overlapping in a thickness direction and without a gap to be in close contact in a liquid-tight manner.
    Type: Application
    Filed: December 12, 2019
    Publication date: December 15, 2022
    Applicant: YKK CORPORATION
    Inventor: GO TAKANI
  • Patent number: 11490695
    Abstract: Provided is a male snap button (10) including a metal male snap body (20), and a fixing member (30) for fixing the male snap body (20) to a fabric (1). The male snap body (20) includes: a male-side engagement part (21) in annular shape capable of being removably engaged with a female-side engagement part (60) of a female snap button (40); and multiple claws (27). The male-side engagement part (21) defines an opening (28) that exposes the fabric (1) inside in a radial direction thereof. A diameter (D1) of the opening (28) is greater than a length (W1) in the radial direction from an outside edge of the opening (28) in the radial direction to an outside edge of the male snap body (20) in the radial direction. The fixing member (30, 30a) includes claw accommodation parts (33) to receive the claws (27).
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: November 8, 2022
    Assignee: YKK CORPORATION
    Inventors: Kota Kanno, Kazunori Somai, Daisuke Hayashi, Kohei Iwata, Nariko Kubota
  • Patent number: 11470922
    Abstract: Provided is a molded surface fastener having an improved balance between durability against repeated attachment and detachment operations and peeling strength. A molded surface fastener made of a thermoplastic resin, includes: a flat plate-shaped base portion; and a plurality of engaging elements protruding from one main surface of the base portion. Each engaging element includes: a stem upstanding from the main surface; and an engaging head portion formed at an upper end portion of the stem, the head portion including a projection portion extending mainly in a direction perpendicular to a molding direction as viewed in a planar view.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: October 18, 2022
    Assignee: YKK Corporation
    Inventors: Isamu Michihata, Yui Hashimoto
  • Patent number: 11445786
    Abstract: A fastening tape having flexibility in a longitudinal direction of the fastening tape. The fastening tape includes a plurality of fasteners, a support, and magnetic material positioned on the support. The support defines a plurality of plateaus and a plurality of valleys. The magnetic material is positioned on at least a portion of one of the plurality of plateaus or the plurality of valleys of the support such that a height of the magnetic material varies in the longitudinal direction. Because the height of the magnetic material varies, the fastening tape is more flexible in the longitudinal direction. In some cases, the fastening tape is also flexible in the lateral direction.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: September 20, 2022
    Assignee: YKK Corporation
    Inventors: Zhiyu Ren, Tsuyoshi Minato, Atsushi Nakaya, Kenta Okada
  • Patent number: 11425972
    Abstract: Stop member includes: a first member including a first insert to be inserted into a slider via a rear mouth of the slider, and a first base positioned rearward of the first insert; and a second member including a second insert to be inserted into the slider via a slit extending between the rear mouth and a front mouth of the slider, and a second base to be overlaid onto the first base. The first and second bases are configured to effect magnetic attraction and/or repulsion between the first and second bases when the first and second bases are overlaid. The second base rotates relative to the first base in accordance with the magnetic attraction and/or repulsion to allow the second insert to pivot toward the slit.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: August 30, 2022
    Assignee: YKK CORPORATION
    Inventors: Tomoyuki Ekko, Yu Chen Tung, Jiro Nozaki
  • Patent number: 11412799
    Abstract: A button fastener transfer device can detect a fastener with one or more legs are bent radially outward. The button fastener transfer device includes a transfer path for passing the fastener with the base down; a movable member movable in the transfer path for moving the fastener downstream in the transfer path; a rotation applying part capable of contacting the fastener moving in the transfer path and configured to rotate the fastener in the circumferential direction of the base; at least one first conductive member and at least one second conductive member, which are normally electrically isolated from each other; a detection part configured to detect a non-normal fastener having at least one non-normal leg bent radially outward; and an energization mechanism configured to cause an electric current to flow between the first conductive member and the second conductive member if the detection part detects the non-normal fastener.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: August 16, 2022
    Assignee: YKK Corporation
    Inventors: Hiroaki Kanazawa, Ryusaku Watanabe
  • Patent number: 11406164
    Abstract: Slide fastener coupled to flexible member includes: a pair of fastener stringers, each of the fastener stringers having a fastener tape provided with a first side-edge portion and a second side-edge portion which extend in an elongation direction of the fastener tape, and a fastener element provided on the first side-edge portion side; and one or more sliders for opening and closing the pair of fastener stringers. The fastener tape includes a first tape region onto which a flap of the flexible member is overlaid and a second tape region positioned between the first tape region and the second side-edge portion. The flap is interposed between the first tape region and the second tape region.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: August 9, 2022
    Assignee: YKK Corporation
    Inventors: Aoi Komiyama, Yuichi Miyazaki, Mitsuo Tsuzuyama, Shigeyoshi Takazawa, Shigeto Takahashi
  • Patent number: 11406165
    Abstract: Provided is a slide fastener-attached product in which an element member, is fixed to an element attaching edge portion of a fastener attached member with a sewn portion for fixing. The sewn portion for fixing pierces the element attaching edge portion, and a thread forming the sewn portion for fixing holds a connecting member. A position that the sewn portion for fixing pierces the element attaching edge portion is apart from an element to be inside of the element attaching edge portion. Thereby, weight reduction and improvement in flexibility of the slide fastener-attached product can be achieved.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: August 9, 2022
    Assignee: YKK Corporation
    Inventor: Yoshiyuki Sho
  • Patent number: 11375777
    Abstract: A side-release buckle includes a plug and a socket for inserting and engaging the plug, and when a cross section of the engaging surface is observed from an in-plane direction of the first mold mating surface defined by a first parting line of the plug, and from an direction perpendicular to an insertion direction, a surface to be engaged is located on the opposite side to a first belt winding portion with respect to the first mold mating surface, and has a first engaging surface forming an angle A1 with the first mold mating surface of 87° or more and 90° or less.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: July 5, 2022
    Assignee: YKK CORPORATION
    Inventor: Kenichi Yoshie
  • Patent number: D972452
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: December 13, 2022
    Assignee: YKK Corporation
    Inventors: Ryoichiro Takazakura, Kenichi Yoshie, Yohei Shimizu, Tetsuya Miyama
  • Patent number: D984314
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: April 25, 2023
    Assignee: YKK Corporation
    Inventor: Shigeki Annaka