Patents by Inventor Shigeyoshi Takazawa
Shigeyoshi Takazawa 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).
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Patent number: 8112848Abstract: A slider for a fluid tight slide fastener that has upper and lower plates joined together by a guide post. A guide plate is formed on the guide post to cooperate with the upper and lower plates, to guide the coupling elements and sealing lips of the slide fastener into engagement in conjunction with side flanges on the upper and lower plates. The slider is integrally formed, such as by die casting or moulding. To facilitate moulding the guide plate may be thickened at its leading end and provided with a tapered edge, and connected to the upper plate by a web at its trailing end.Type: GrantFiled: September 17, 2007Date of Patent: February 14, 2012Assignee: YKK CorporationInventors: Shigeyoshi Takazawa, Morimasa Yoneoka
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Patent number: 8091187Abstract: A zip fastener comprises a pair of tapes and coupling elements along adjacent edges of the tapes. The tapes are partly cut away to form a gap into which an end stop is moulded. The end stop is provided so as to extend along the tape edges away from the fastener coupling elements.Type: GrantFiled: February 4, 2008Date of Patent: January 10, 2012Assignee: YKK CorporationInventors: Shigeyoshi Takazawa, Mark Davies
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Patent number: 8091186Abstract: A slider for a fluid tight slide fastener has upper and lower wings joined by a guide post and a guide plate provided between the upper and lower wings and spaced there from to cooperate with the upper and lower wings to guide coupling elements and sealing lips of the slide fastener. The upper wing is provided with upper side flanges which extend from the trailing end of the upper wing to a position at least as far forward as the forward end of the guide post.Type: GrantFiled: November 25, 2008Date of Patent: January 10, 2012Assignee: YKK CorporationInventors: Shigeyoshi Takazawa, Morimasa Yoneoka
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Publication number: 20110214261Abstract: Slider assemblies and methods of manufacturing slider assemblies comprising a slider with a locking feature that cooperates with a plurality of coils of a standard zipper component. In some embodiments, the slider is capable of moving freely along the length of the zipper component when sufficient force is applied to the slider, but is capable of being locked in position when sufficient force is no longer applied to the slider. In certain embodiments, the locking feature is generally M-shaped. In some embodiments, the sliders are formed using injection molding techniques.Type: ApplicationFiled: March 5, 2010Publication date: September 8, 2011Inventors: Shigeyoshi Takazawa, Albert E. Barrows, John B. Sears
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Publication number: 20110126383Abstract: Water repellent slider caps and zipper structures. Certain embodiments provide a male slider cap that receives a slider to thereby reduce the amount of water introduced around the perimeter of the slider. A pull tab on the slider may be inserted into a pocket on the male slider cap that is defined by the inner surface of the male slider cap and a snap tab. In other embodiments there is additionally provided a garage attached to the zipper tape. The garage may receive the male slider cap to reduce the amount of water around the perimeter of the slider and into the garage. Certain other embodiments provide a female slider cap to receive a second slider that may be positioned on the zipper tape. The female slider cap may receive the leading edge of the male slider cap, thus covering any open spaces between the first and second sliders.Type: ApplicationFiled: December 1, 2009Publication date: June 2, 2011Applicant: YKK Corporation of AmericaInventors: Shigeyoshi Takazawa, Dennis T. Bernabe
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Patent number: 7774906Abstract: A slide fastener (1) has a releasing end stop (15) having a shoulder (27) which impedes movement of the releasing end stop (15) through the channel (47) of the slider (35). The releasing end stop (15) is pivotable relative to the opposed coupling element (11) to allow movement of the releasing end stop (15) through the channel (47) of the slider (35) when additional force is applied to the slider (35). With this construction, the releasing end stop (15) enjoys a longer life span. Furthermore it is advantageously possible to use the same material for the top end stop (15) as for the coupling elements (11), so that the manufacturing process will be much simplified.Type: GrantFiled: February 26, 2007Date of Patent: August 17, 2010Assignee: YKK CorporationInventor: Shigeyoshi Takazawa
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Publication number: 20100170067Abstract: There is provided a thin slider for a slide fastener with an automatic locking mechanism with a locking pawl while having an excellent design property and operability. The thin slider according to the present invention includes a locking pawl journaled by a slider body and a resilient member accommodated in a connecting post. The locking pawl is urged in such a first rotation direction that its pawl portion is inserted into an element guide passage of the slider body by the resilient member. The upper blade of the slider body includes a first upper blade connected to the connecting post and a second upper blade which is attached slidably onto the first upper blade. The second upper blade has a thin second upper blade main body and an operating piece drooping from the front end portion of the second upper blade main body.Type: ApplicationFiled: January 7, 2009Publication date: July 8, 2010Inventor: Shigeyoshi Takazawa
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Publication number: 20090320250Abstract: Various embodiments of slide fasteners include a first set of coupling elements and a second set of coupling elements configured to be removably joined together by a slider. Each coupling element includes a first surface having a first shape and a second surface having a second shape, wherein the second surface is spaced apart from and cofaces the first surface. The first shape may be substantially triangular or substantially trapezoidal, according to various embodiments, and the second shape is substantially gear shaped. When the coupling elements of the first set and the second set are removably joined together, water is substantially prevented from leaking from the first surface to the second surface. In addition, the coupling elements are disposed on stringer tapes, and the surfaces of the stringer tapes adjacent the first surfaces of the coupling elements are laminated with a water resistant material.Type: ApplicationFiled: June 3, 2009Publication date: December 31, 2009Inventors: Kentaro Yamamoto, Hisashi Yoneshima, Shigeyoshi Takazawa
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Publication number: 20090139068Abstract: A slider for a fluid tight slide fastener has upper and lower wings joined by a guide post and a guide plate provided between the upper and lower wings and spaced there from to cooperate with the upper and lower wings to guide coupling elements and sealing lips of the slide fastener. The upper wing is provided with upper side flanges which extend from the trailing end of the upper wing to a position at least as far forward as the forward end of the guide post.Type: ApplicationFiled: November 25, 2008Publication date: June 4, 2009Inventors: Shigeyoshi TAKAZAWA, Morimasa Yoneoka
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Publication number: 20080201918Abstract: A zip fastener comprises a pair of tapes and coupling elements along adjacent edges of the tapes. The tapes are partly cut away to form a gap into which an end stop is moulded. The end stop is provided so as to extend along the tape edges away from the fastener coupling elements.Type: ApplicationFiled: February 4, 2008Publication date: August 28, 2008Applicant: YKK CORPORATIONInventors: Shigeyoshi Takazawa, Mark Davies
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Patent number: 7360285Abstract: An automatic lock slider 1 for a concealed slide fastener comprises a slider body 3, a locking lever 5 and a knob 11. The locking lever 5 is pivotally mounted on the slider body 3. A locking pawl 53 on one end 55 of the locking lever 5 is urged into a fastener element guide channel 39 of the slider body 3 by a spring 7, to prevent unintentional sliding of the slider 1 along a slide fastener. The knob 11 is attached to a connecting ring 9 through which the locking lever 5 is inserted. When opening or closing the slide fastener, the knob 11 rocks and lifts the locking lever 11 to withdraw the locking pawl 53 from the fastener element guide channel 39, thereby allowing movement of the slider 1 along the slide fastener.Type: GrantFiled: May 2, 2005Date of Patent: April 22, 2008Assignee: YKK CorporationInventor: Shigeyoshi Takazawa
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Publication number: 20080066270Abstract: A slider 20 for a fluid tight slide fastener has upper and lower plates 21, 22 joined together by a guide post 23. A guide plate 24 is formed on the guide post 23 to cooperate with the upper and lower plates 21, 22 to guide the coupling elements and sealing lips of the slide fastener into engagement in conjunction with side flanges 27, 28 on the upper and lower plates 21, 22. The slider is integrally formed; such as by die casting or moulding. To facilitate moulding the guide plate 24 may be thickened at its leading end 32 and provided with a tapered edge, and connected to the upper plate 21 by a web 29 at its trailing end.Type: ApplicationFiled: September 17, 2007Publication date: March 20, 2008Inventors: Shigeyoshi Takazawa, Morimasa Yoneoka
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Patent number: 7340806Abstract: An opener for a slide fastener comprising an insert pin mounted on a bottom end of a fastener element, a notch portion provided in a main body portion thereof, a base portion provided on an upper side to be projected to a box pin side, an inserting portion that is to be inserted into the fastener element on the box pin side and provided protrudedly on the base portion, a mounting portion provided adjacent to the inserting portion so that a leg portion of the fastener element can be placed thereon, an accommodating portion for accommodating an engaging head of the fastener element provided between a projecting portion on top of the main body portion and the inserting portion, wherein the right and left fastener elements are captured by the insert pin thereby blocking separation due to push-up from a rear surface, when the inserting portion is inserted into the fastener elements.Type: GrantFiled: June 16, 2005Date of Patent: March 11, 2008Assignee: YKK CorporationInventors: Satoshi Matsumoto, Shigeyoshi Takazawa
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Publication number: 20070204439Abstract: A slide fastener (1) has a releasing end stop (15) having a shoulder (27) which impedes movement of the releasing end stop (15) through the channel (47) of the slider (35). The releasing end stop (15) is pivotable relative to the opposed coupling element (11) to allow movement of the releasing end stop (15) through the channel (47) of the slider (35) when additional force is applied to the slider (35). With this construction, the releasing end stop (15) enjoys a longer life span. Furthermore it is advantageously possible to use the same material for the top end stop (15) as for the coupling elements (11), so that the manufacturing process will be much simplified.Type: ApplicationFiled: February 26, 2007Publication date: September 6, 2007Inventor: Shigeyoshi Takazawa
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Publication number: 20050278904Abstract: An opener for a slide fastener comprising an insert pin mounted on a bottom end of a fastener element, a notch portion provided in a main body portion thereof, a base portion provided on an upper side to be projected to a box pin side, an inserting portion that is to be inserted into the fastener element on the box pin side and provided protrudedly on the base portion, a mounting portion provided adjacent to the inserting portion so that a leg portion of the fastener element can be placed thereon, an accommodating portion for accommodating an engaging head of the fastener element provided between a projecting portion on top of the main body portion and the inserting portion, wherein the right and left fastener elements are captured by the insert pin thereby blocking separation due to push-up from a rear surface, when the inserting portion is inserted into the fastener elements.Type: ApplicationFiled: June 16, 2005Publication date: December 22, 2005Inventors: Satoshi Matsumoto, Shigeyoshi Takazawa
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Publication number: 20050246872Abstract: An automatic lock slider 1 for a concealed slide fastener comprises a slider body 3, a locking lever 5 and a knob 11. The locking lever 5 is pivotally mounted on the slider body 3. A locking pawl 53 on one end 55 of the locking lever 5 is urged into a fastener element guide channel 39 of the slider body 3 by a spring 7, to prevent unintentional sliding of the slider 1 along a slide fastener. The knob 11 is attached to a connecting ring 9 through which the locking lever 5 is inserted. When opening or closing the slide fastener, the knob 11 rocks and lifts the locking lever 11 to withdraw the locking pawl 53 from the fastener element guide channel 39, thereby allowing movement of the slider 1 along the slide fastener.Type: ApplicationFiled: May 2, 2005Publication date: November 10, 2005Inventor: Shigeyoshi Takazawa
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Patent number: 6865782Abstract: A slide fastener in which an insert pin and a box pin of a separable bottom stop assembly made of synthetic resin are molded integrally along side edges of fastener tapes. The insert pin and the box pin have peripheral shapes allowing themselves to be inserted into element row guide grooves of a slider, and are molded integrally such that the entire insert pin and the box pin incline toward rear face sides of the respective tapes from their inner side edges to outer side edges relative to tape planes of the fastener, said rear face sides having no core threads of the core portions. Thus, resin layers having substantially even thickness can be formed on both the front and rear face sides of the core portions so that the resin layers never peel away from rear surfaces of the fastener tapes, and the core portions and their peripheries never become brittle.Type: GrantFiled: December 10, 2002Date of Patent: March 15, 2005Assignee: YKK CorporationInventors: Shigeyoshi Takazawa, Osamu Igarashi
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Patent number: 6826809Abstract: A separable bottom end stop for a slide fastener comprising a box, a box pin, and an insert pin. Protruding guide portions which protrude onto respective fastener tapes are integrally molded with respective side faces at tape-sides of the box pin and the insert pin via thin guide portions. The separable bottom end stop is formed of polyacetal resin, and a distance d between each outer side face of the box and each of the protruding guide portions and a protrusion height h of each of the protruding guide portions from a surface of each of the thin guide portions when the box pin and the insert pin are mounted into the box satisfy the equation (I): tan−1(d/h) ≧33°, where d≠0. The separable bottom end stop becomes hard to be broken with having excellent durability, despite using polyacetal resin which allows various coloring achieved easily, but is easy to be broken.Type: GrantFiled: March 24, 2003Date of Patent: December 7, 2004Assignee: YKK CorporationInventors: Shigeyoshi Takazawa, Mitsugu Umino, Tomiyoshi Takano
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Patent number: D610947Type: GrantFiled: January 9, 2009Date of Patent: March 2, 2010Assignee: YKK CorporationInventors: Shigeyoshi Takazawa, Hsu Hsien Hsiang
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Patent number: D632218Type: GrantFiled: November 17, 2009Date of Patent: February 8, 2011Assignee: YKK CorporationInventors: Kentaro Yamamoto, Hisashi Yoneshima, Shigeyoshi Takazawa, Takaaki Fujii