Patents Assigned to YKK Corporation
  • Patent number: 11324290
    Abstract: An element includes a head having an engaging convex portion protruding from one surface thereof and an engaging concave portion formed on the back of the engaging convex portion on the other surface; and a pair of leg portions extending from the head. A protrusion is formed on a side of the engaging concave portion close to the leg portions to protrude inward of the engaging concave portion.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: May 10, 2022
    Assignee: YKK Corporation
    Inventors: Shigeru Tsuchida, Chikako Hiromi
  • Patent number: 11317683
    Abstract: A method for sewing a slide fastener includes forming end edge portion needle drop points in at least two positions, within an overlapped portion in which the work piece is folded, within a range more toward a tip side of an end edge portion of the work piece than half of an overlapped width, and within a range on an inner side of a width of a leg portion of an interlocking element. Sewing is performed with sewing thread passing from a head portion needle drop point to the end edge portion needle drop point of one end portion and sewing thread passing from the end edge portion needle drop point of another end portion to the head portion needle drop point of an adjacent interlocking element each passing either side of the leg portion.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: May 3, 2022
    Assignees: JUKI CORPORATION, YKK CORPORATION
    Inventors: Ichirou Suzuki, Wataru Kawaguchi
  • Patent number: 11304482
    Abstract: A slider includes: a slider body including an upper vane, a lower vane, and a guide post connecting the upper vane and the lower vane; and a pull tab connected to the slider body. The upper vane is provided with a pair of lateral walls projecting from an upper surface of the upper vane in a thickness direction of the slider body. A connection bearing for a connecting pin supported by the pair of lateral walls to be inserted is provided to the pull tab. The upper vane is provided with a recess dented toward the lower vane in the thickness direction with respect to the upper surface. The connection bearing is located in the recess between the pair of lateral walls.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: April 19, 2022
    Assignee: YKK Corporation
    Inventor: Takanori Ozawa
  • Patent number: 11291275
    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.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: April 5, 2022
    Assignee: YKK Corporation
    Inventors: Yoshiyuki Fukuhara, Hiroyuki Yamashita, Makoto Takekawa, Takahiro Fuse
  • Patent number: 11284681
    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: April 3, 2017
    Date of Patent: March 29, 2022
    Assignee: YKK Corporation
    Inventors: Makoto Takekawa, Yoshiyuki Fukuhara, Hiroyuki Yamashita, Isamu Michihata, Yui Hashimoto
  • Patent number: 11267369
    Abstract: A motion guiding device includes: a lower rail having a guiding groove; an upper rail movably disposed in the guiding groove; a first side cover and a second side cover that are fixed to the lower rail; and a slide fastener held by the first side cover and the second side cover. Each of the first side cover and the second side cover includes: a cover body piece engaged with a fastener tape of the slide fastener such that the fastener tape is movable to open and close the slide fastener; and a fixing piece extending from a surface of the cover body piece. The cover body piece includes a support projection projecting from the surface of the cover body piece.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: March 8, 2022
    Assignee: YKK Corporation
    Inventors: Tsutomu Yamada, Tomonari Yoshida, Yoshitomo Iyoda
  • Patent number: 11259605
    Abstract: In this molded surface fastener, plural engaging elements having a stem portion and an engaging head portion formed integrally on the stem portion are standing on the base portion, at least one pawl portion having a pawl width dimension narrower than a width dimension at a boundary between the stem portion and the engaging head portion is protruded on an outer peripheral edge part of the engaging head portion, and a back surface of pawl of the pawl portion is formed at different angles with respect to a back surface of head portion of the engaging head portion. Such a molded surface fastener of the present invention has a substantial engaging force with respect to a female surface fastener and can make a texture of its surface comfortable.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: March 1, 2022
    Assignee: YKK Corporation
    Inventors: Yoshiyuki Fukuhara, Hiroyuki Yamashita, Takahiro Fuse, Isamu Michihata, Yui Hashimoto
  • Patent number: 11261306
    Abstract: The disclosure discloses a method for forming a rubber layer on a surface of a resin material. In the method, painting is first performed on the surface of the resin material to form a painting layer, using a paint to which a pigment has been added; then, rubber coating is performed to form a rubber layer on the painting layer. The method of the disclosure may be used in surface treatment of a fastener product. The disclosure further discloses a slide fastener, a buckle and a snap button using the method of the disclosure. The method of the disclosure may solve a conventional problem that a rubber coating is likely to fall off a resin surface, and the rubber on the surface of the resultant fastener product is less likely to fall off.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: March 1, 2022
    Assignee: YKK CORPORATION
    Inventors: Go Takani, Yusuke Ito, Fulin Miao, Ye Yuan
  • Publication number: 20220053889
    Abstract: Provided is a snap button including a male snap button (30) made of metal and a female snap button (10). The male snap button (30) includes a base portion (31) and an engaging protuberance (32) which projects from the base portion (31). The female snap button (10) includes: a ring member (20, 120) made of soft resin, defining an engagement space (20a) which detachably accepts the engaging protuberance (32); and a female snap body (11) made of metal, accommodating the ring member (20, 120). The ring member (20, 120) is provided with a protruding portion (24) which projects further out to one side than an end (12a), on said one side, of the female snap body (11) facing the male snap button (30) in an axial direction, and which is provided in circumferential direction.
    Type: Application
    Filed: December 7, 2018
    Publication date: February 24, 2022
    Applicant: YKK CORPORATION
    Inventors: Kota KANNO, Kazunori SOMAI
  • Patent number: 11246382
    Abstract: Provided is a copper alloy fastener element which improves season cracking resistance by a means different from that of increasing a ratio of a ? phase. The copper alloy fastener element includes a copper-zinc alloy as a base material, the base material having: an apparent zinc content of from 34 to 38%; a dendrite structure; and a ? phase at a ratio of 10% or less.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: February 15, 2022
    Assignee: YKK Corporation
    Inventors: Takanori Kumei, Atsushi Ogihara, Chikako Hiromi, Yoshio Taira, Muneyoshi Yokota, Takahiro Fukuyama, Kouta Kido
  • Patent number: 11234494
    Abstract: A hook fastener includes a stem having two lateral edges, a first surface, and a second surface. A cap extends from an upper end of the stem, and the cap includes an upper surface, a first end, a second end, and a pair of overhanging portions. The upper surface of the cap is sloped between the first end and the second end. The first and second ends are at opposite longitudinal ends of the cap, and each overhanging portion extends in a lateral direction from the stem.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: February 1, 2022
    Assignee: YKK Corporation
    Inventors: Satoshi Nakada, Chieko Arai, Ryosuke Tanimoto
  • Patent number: 11236431
    Abstract: A method includes: agitating base members that has been immersed in an electrolytic solution inside of an electroplating tank so as to flow in a circumference direction along an inner wall of the electroplating tank; and electroplating the base members flowing along the circumference direction in the electrolytic solution inside of the electroplating tank. The flow of the base members along the circumference direction is caused by a flow of magnetic media along the circumference direction in the electrolytic solution inside of the electroplating tank or is caused by rotation of an agitation unit provided at a bottom side of the electroplating tank. At least one of the base members touches a bottom cathode, and a base member positioned upward relative to the base member touching the bottom cathode is electrically connected to the bottom cathode via at least the base member touching the bottom cathode.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: February 1, 2022
    Assignee: YKK Corporation
    Inventors: Masayuki Iimori, Ryosuke Takeda
  • Publication number: 20220007794
    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: Application
    Filed: November 22, 2018
    Publication date: January 13, 2022
    Applicant: YKK CORPORATION
    Inventors: KOTA KANNO, KAZUNORI SOMAI, DAISUKE HAYASHI, KOHEI IWATA, NARIKO KUBOTA
  • Patent number: 11219284
    Abstract: A female snap assembly includes a cage and an engagement member. The cage defines a receiving region, and the engagement member is within the receiving region. The engagement member includes a base, an inner engagement wall extending from base, and an outer engagement wall extending from the base. In some examples, the engagement member defines a channel between the inner engagement wall and the outer engagement wall. In various examples, the inner engagement wall defines at least one notch extending through the inner engagement wall.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: January 11, 2022
    Assignee: YKK Corporation of America
    Inventors: Chuck G. LeCompte, Jonathan H. Sharp, William George Wilson
  • Patent number: 11219285
    Abstract: This manufacturing method of a molded surface fastener involves a primary molding step for forming a primary molded body and a secondary molding step for compressing a provisional element of the primary molded body while heating the same. A molding apparatus is provided with a mold member comprising multiple penetration holes and multiple concave portions, whereof each penetration hole communicates to at least one concave portion; in the primary molding step, the molding apparatus is used to form a primary molded body comprising a provisional element having a primary stem portion and a pawl portion is formed from the protruded portion by compressing the provisional element. By this means, it is possible to stably manufacture a molded surface fastener that has an engaging element comprising a pawl portion that projects from the outer peripheral edge of an engaging head portion.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: January 11, 2022
    Assignee: YKK Corporation
    Inventors: Yoshiyuki Fukuhara, Yuji Takada
  • Patent number: 11206901
    Abstract: A slide fastener-attached product has a first element member in which an insert pin portion is attached to a fixing member, a second element member in which a box portion is attached to a fixing member and fastener attached members having a pair of element attaching edge portions in a position facing to each other. The first element member and the second element member have an element holding portion and a component holding portion in which the insert pin portion or the box portion is attached with respect to the length direction of the fixing member, and at least the component holding portion is fixed to the element attaching edge portion of the fastener attached member with a component sewn portion which is formed of sewing threads and pierces the fastener attached member. The product provides weight saving, improved softness, and an easily separable rear end stop.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: December 28, 2021
    Assignee: YKK Corporation
    Inventors: Yu Chen Tung, Yoshiyuki Sho
  • Patent number: 11202487
    Abstract: A first stop member includes a first base and a first insert that is positioned between the first base and a first fastener element and is inserted into the slider via a rear mouth of a slider. A second stop member includes a second base and a second insert that is positioned between the second base and a second fastener element and is inserted into the slider via a second slit of the slider. The second insert moves toward the second slit of the slider in accordance with at least one or respective rotations of the first and second bases. A rotational axis with respect to the at least one or respective rotations of the first and second bases is positioned between the first tape region and the second tape region.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: December 21, 2021
    Assignee: YKK CORPORATION
    Inventors: Yu Chen Tung, Jiro Nozaki, Shigeyoshi Takazawa, Yoshinori Kojima, Shigeki Annaka
  • Patent number: 11197521
    Abstract: A slide fastener includes a resin sheet that joins tapes on one surface among both surfaces of the tapes in a thickness direction, and that extends from a stop on a side opposite to element rows and is integral with the stop. The stop includes recesses on a boundary portion with the sheet of left and right side portions that respectively correspond to the tapes, and includes a recess region in a surface of the stop that is a region whose range in a left-right direction is defined by leftmost and rightmost ones of the recesses. A surface of the sheet includes a flat portion that is a region extending from the recess region toward the side opposite to the element rows.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: December 14, 2021
    Assignee: YKK Corporation
    Inventors: Masanori Kayahara, Mineto Terada, Ryo Mikuma, Kazuya Taniguchi, Yuki Sakagami
  • Patent number: 11199244
    Abstract: There is provided a string stopper including: a plug including: a plug base portion which includes plate-shaped portions and connection portion connecting the plate-shaped portions; a leg portion which includes a protruding portion; and a plug opening which is formed from the connection portion to both sides of the leg portion; and a socket including: a socket base portion; and a socket opening which is formed of a hole having an inclined surface, and which is configured to accommodate a tip end of the protruding portion. When a string-shaped member is installed, the string-shaped member passes between the protruding portion and the inclined surface, the string-shaped member passing through the plug opening, exiting from the plug through a side of the leg portion, passing through the socket opening and exiting from the socket.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: December 14, 2021
    Assignee: YKK Corporation
    Inventors: Madoka Nanbu, Legong Ma
  • Patent number: 11191326
    Abstract: A marking device performs a marking process onto a long object. The marking device includes a driving source and a marking unit that performs a circular motion in accordance with a driving force supplied from the driving source. While the long object is being transferred, marks are applied onto the long object in accordance with the circular motion of the marking unit. An extent of interference by the marking unit to the transfer of the long object is reduced, thus facilitating higher speed transfer of the long object.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: December 7, 2021
    Assignee: YKK Corporation
    Inventors: Toru Umekawa, Hiroshi Ishisaka