YKK Corporation

Kurobe, Japan

YKK Corporation

Kurobe, Japan
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Patent
YKK Corporation | Date: 2014-06-05

There is provided an element for a fastener chain. The element includes a body portion fixed on a core portion of a tape, a neck portion, a pair of shoulder portions, an engaging head portion, and a pair of groove portions. As viewed in the width direction, at least one of the pair of shoulder portions and the pair of groove portions is configured to be inclined with respect to a reference direction, which is an extending direction of the core portion on which the body portion is fixed.


Patent
YKK Corporation | Date: 2016-11-10

A slide fastener chain includes a first tape and a second tape. A row of coupling elements is fixed along an inner edge of the first tape. A row of coupling elements is fixed along an inner edge of the second tape. The coupling elements of the first and second tapes being arranged such that the coupling elements of the first tape interdigitate with coupling elements of the second tape so as to secure the first and second tapes together. The chain includes a bottom stop. At least one of the tapes is provided with an extension portion which extends beyond a bottom stop portion of the tape. A width of the extension portion is less than a width of a portion of the tape which does not form part of the extension portion.


Patent
YKK Corporation | Date: 2017-01-16

There is provided a slider for a slide fastener. The slider includes a body, a pull tab, a shaft member, and a coil spring. The pull tab has a base portion, a gripper and a claw portion protruding from the base portion. The shaft member is configured to rotatably support the pull tab relative to the body. The coil spring is attached around the shaft member to urge the gripper to be laid down toward the body. A claw guide portion allows a tip end of the claw portion to protrude into the guide groove. A restricting portion of the body restricts rotation of the pull tab when the pull tab is raised by a predetermined angle from the body. A restricted portion of the pull tab comes in contact with the restricting portion when the pull tab is raised by the predetermined angle from the body.


Patent
YKK Corporation | Date: 2016-12-07

Provided is a slider having appearance or texture which cannot be obtained with a slider body made of metal or synthetic resin in the related art and further having properties superior than those of sliders in the related art. A slider of an embodiment of the invention includes a slider body formed by sintered bodies containing zirconium oxide as a main component and a tab held by a tab attaching portion of the slider body.


Patent
YKK Corporation | Date: 2016-09-16

There is provided a slider for a slide fastener. The slider includes a slider body, an elastic body and a pull tab. The pull tab includes a shaft, a pull tab main body and a cam. The cam is configured to elastically deform the elastic body when the pull tab is laid down. The slider body includes an upper blade and a pair of pull tab attaching posts. The upper blade includes a recess portion and a crimping portion. The recess portion includes a pair of lateral recess portions and a center recess portion. The crimping portion protrudes from at least one of the lateral recess portions at a protruding location located at a center side relative to both front and rear ends of the center recess portion.


Patent
YKK Corporation | Date: 2016-09-29

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.


Patent
YKK Corporation | Date: 2016-10-14

There is provided an apparatus for attaching an item to a substrate, using a prong ring with a ring and two or more prongs. When attached, the prongs extends from the ring on a first side of the substrate through such substrate and being bent. A lower die is positioned to approach the first side of the substrate. An upper die is on a second side of the substrate. The substrate is placed in a manner substantially perpendicular to the attaching movement of the upper and lower dies and a first redirecting member for redirecting the prongs which are bent inwardly. The first redirecting member cooperates with an abutting member positioned along the approach of the prong ring towards the first side of the substrate for inhibiting movement of the prong ring towards the substrate while the first redirecting member is used.


An upper structure (310) of a female snap button (300) includes a post holding member (110) for holding a post (12) of a male snap button (10), and a receiving member (210) for receiving the post holding member (110). The receiving member (210) includes a surrounding wall (220) that extends in an up and down direction to surround the post holding member (110), a bottom portion (230) that is coupled to a lower end of the surrounding wall (220) and provided inward of the surrounding wall (220), and a peripheral portion (240) that is coupled to an upper end of the surrounding wall (220) and provided outward of the surrounding wall (220). An opening (260) is defined by a rim (250) between the upper end of the surrounding wall (220) and the peripheral portion (240).


Patent
YKK Corporation | Date: 2017-09-27

A snap bottom comprises a female snap body (11) and a socket ring (20, 60) to be incorporated in the female snap body (11). The female snap body (11) comprises a bottom portion (12) and a side wall (18) rising from a peripheral edge of the bottom portion (12), the side wall (18) being provided with a holding portion (14) for holding the socket ring (20, 60). The socket ring (20, 60) comprises a flange portion (21, 61) arranged radially outward and held by the holding portion (14) and an engaging portion (22, 62) arranged radially inside the flange portion (21, 61). The engaging portion (22, 62) protrudes downwardly toward the bottom portion (12) side of the female snap body (11) and below the flange portion (21, 61), in the axial direction of the socket ring (20, 60). An inner diameter of the socket ring (20, 60) may be gradually increased from an intermediate point in the axial direction of the engaging portion (22, 62) to one end and other end in the axial direction of the engaging portion (22, 62). The engaging portion (22, 62) of the socket ring (20, 60) may be provided with a plurality of slits (23, 63) along the radial direction in the circumferential direction.


There is provided a method for subjecting garment accessories to a surface electrolytic treatment, which can advantageously provide various metallic colors to metallic garment accessories in a cost effective manner. The method can provide a first metallic color on one side of outer surface of the garment accessory while at the same time providing a second metallic color on the other side of the outer surface, by placing one or more metallic garment accessories in an electrolytic solution in a non-contact state with an anode and a cathode for passing electric current through the electrolytic solution, passing electric current through the electrolytic solution and generating a bipolar phenomenon on the garment accessory. The method may further comprise the step of controlling the posture of the garment accessory such that the one side of the outer surface of the garment accessory faces the anode and the other side faces the cathode during passing electric current through the electrolytic solution. The method may further comprise the step of polishing at least a part of the outer surface of the garment accessory during passing electric current through the electrolytic solution.

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