Patents by Inventor Masahiro Kusayama

Masahiro Kusayama 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).

  • Patent number: 8806724
    Abstract: A liquid-tight slide fastener, wherein a pair of right and left coil-like coupling element rows, through which a core thread is respectively passed, is attached by sewing along opposing side edges of a pair of right and left fastener tapes, the fastener tapes having a liquid-tight layer on one surface thereof, and the core thread is coated with a water repellent agent or oil repellent agent. Consequently, even if water or oil invades into a space portion in the coupling element rows through a joint portion in the liquid-tight slide fastener, the core thread repels the water or oil, thereby blocking a further invasion of water or oil, and exerting excellent water repellency or oil repellency without provision of a water stop flap.
    Type: Grant
    Filed: November 18, 2012
    Date of Patent: August 19, 2014
    Assignee: YKK Corporation
    Inventor: Masahiro Kusayama
  • Patent number: 8327509
    Abstract: A liquid-tight slide fastener, wherein a pair of right and left coil-like coupling element rows, through which a core thread is respectively passed, is attached by sewing along opposing side edges of a pair of right and left fastener tapes, the fastener tapes having a liquid-tight layer on one surface thereof, and the core thread is coated with a water repellent agent or oil repellent agent. Consequently, even if water or oil invades into a space portion in the coupling element rows through a joint portion in the liquid-tight slide fastener, the core thread repels the water or oil, thereby blocking a further invasion of water or oil, and exerting excellent water repellency or oil repellency without provision of a water stop flap.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: December 11, 2012
    Assignee: YKK Corporation
    Inventor: Masahiro Kusayama
  • Publication number: 20120011697
    Abstract: A liquid-tight slide fastener, wherein a pair of right and left coil-like coupling element rows, through which a core thread is respectively passed, is attached by sewing along opposing side edges of a pair of right and left fastener tapes, the fastener tapes having a liquid-tight layer on one surface thereof, and the core thread is coated with a water repellent agent or oil repellent agent. Consequently, even if water or oil invades into a space portion in the coupling element rows through a joint portion in the liquid-tight slide fastener, the core thread repels the water or oil, thereby blocking a further invasion of water or oil, and exerting excellent water repellency or oil repellency without provision of a water stop flap.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 19, 2012
    Applicant: YKK Corporation
    Inventor: Masahiro Kusayama
  • Patent number: 7870649
    Abstract: A waterproof slide fastener in which an entire surface of a fastener tape is covered with elastomer, through holes are made in a side edge of the fastener tape, and fastener elements each comprising a coupling head, a neck portion, an engaging projection, a leg portion and a tongue piece, are molded by injection molding so as to cover the through holes. Reinforcing portions are provided projectingly from sides of the leg portion so as to cover at least a part of each of the through holes in a longitudinal direction of the through holes made in the fastener tape so that the reinforcing portions surround the through holes, so the reinforcing portions prevent the through holes from being exposed even when the fastener tape is bent, thereby maintaining water-tightness and airtightness.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: January 18, 2011
    Assignee: YKK Corporation
    Inventors: Ryo Mikuma, Masahiro Kusayama
  • Patent number: 7624482
    Abstract: An article with a slide fastener in which when a tearing force is applied to an article provided with a slide fastener and a slider makes contact with an end stop, a connecting member having flexibility and connecting between rear faces of right and left fastener stringers is disposed at a position on a side of a fastener element near the end stop, at which the force is not transmitted directly to the slider, a covering tape for covering at least the end stop and the connecting member is disposed on a rear face of the article, so that fastener elements and end stop are blocked from being damaged or the fastener elements are prevented from being dropped out of a fastener tape by a tearing force, and the connecting member is prevented from being hooked or caught by the slider so as to always realize a smooth slider operation.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: December 1, 2009
    Assignee: YKK Corporation
    Inventors: Masahiro Kusayama, Yutaka Tominaga, Ryo Tanaka
  • Patent number: 7591051
    Abstract: The invention provides a waterproof top end stop for a slide fastener for enhancing its waterproof and airproof properties, wherein fastener elements are attached to opposing side edges of a pair of waterproof fastener tapes, an elastic top end stop is attached adjacent to the fastener elements and includes an accommodating portion in a center for accommodating a diamond; protrusions projecting in a front/rear surface direction around the accommodating portion and making a pressure contact with inner faces of blades; passage portions at entrances of the top end stop; and pressing portions on outer edges of insertion leg portions of the top end stop corresponding to the passage portions, outer sides of the pressing portions project outward with respect to contact faces of leg portions of an adjacent fastener element, and the pressing portions are pressed by flanges of the slider and the passage portions are closed firmly simultaneously.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: September 22, 2009
    Assignee: YKK Corporation
    Inventors: Masahiro Kusayama, Yutaka Tominaga, Ryo Tanaka
  • Patent number: 7565722
    Abstract: Various embodiments of top end stops for a slide fastener are made of resin and are each formed adjacent to an end portion of each of two rows of coupling elements provided along edge portions of a pair of fastener tapes. Each of the top end stops has a concave portion on an opposed face to the other top end stop, and each of the concave portions accomodate a slider therebetween when the slide fastener is colsed. A gap is formed between each top end stop and a coupling element disposed at the end portion of each row of the coupling elements, and an overlapping portion is formed in a bottom end of one of the top end stops, such that a coupling head of a mating coupling element is capable of overlapping the overlapping portion.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: July 28, 2009
    Assignee: YKK Corporation
    Inventors: Masahiro Kusayama, Satoshi Matsumoto, Ryo Tanaka
  • Patent number: 7415753
    Abstract: A slide fastener, wherein in the fastener chain openable and closable from both ends thereof, a box pin and the insert pin, which can join with or separate from each other, are provided at least on an end of the fastener chain; and a protrusion facing the insert pin and projecting from an opposing face is provided at a front end of the box pin; the protrusion has slopes inclined in a direction of approaching the insert pin on upper and lower sides of the protrusion; and the lower side of the protrusion makes contact with a diamond of the reverse opening slider, while the upper side of the protrusion can guide the insert pin smoothly when the pin is inserted.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: August 26, 2008
    Assignee: YKK Corporation
    Inventors: Masahiro Kusayama, Kiyomasa Segawa
  • Patent number: 7416397
    Abstract: A waterproof slide fastener and a manufacturing apparatus thereof are disclosed, wherein each fastener element has a coupling head, a neck portion, a body portion, and leg portions which are continuously fused and integrated, a terminal end is projected from a gap between upper/lower half portions of the coupling head, upper/lower flanges of a slider make a sliding contact with a surface of each of upper/lower half portions of each leg portion, each half portion of the leg portion extending from the body portion via a crotch portion and guiding the flanges, two or more leg portions are disposed with a predetermined interval in a sliding direction, an entire shoulder width of a shoulder portion is larger than a body width of the body portion if it is provided, thereby intensifying fixing strength between a fastener tape and fastener elements and waterproofness, and allowing a smooth sliding of a slider.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: August 26, 2008
    Assignee: YKK Corporation
    Inventors: Masahiro Kusayama, Kenji Yuki, Ryo Tanaka
  • Publication number: 20080189918
    Abstract: A liquid-tight slide fastener, wherein a pair of right and left coil-like coupling element rows, through which a core thread is respectively passed, is attached by sewing along opposing side edges of a pair of right and left fastener tapes, the fastener tapes having a liquid-tight layer on one surface thereof, and the core thread is coated with a water repellent agent or oil repellent agent. Consequently, even if water or oil invades into a space portion in the coupling element rows through a joint portion in the liquid-tight slide fastener, the core thread repels the water or oil, thereby blocking a further invasion of water or oil, and exerting excellent water repellency or oil repellency without provision of a water stop flap.
    Type: Application
    Filed: February 1, 2008
    Publication date: August 14, 2008
    Applicant: YKK CORPORATION
    Inventor: Masahiro Kusayama
  • Patent number: 7337506
    Abstract: A waterproof slide fastener and a manufacturing apparatus thereof, wherein each fastener element has a coupling head, a neck portion, a body portion, and leg portions which are continuously fused and integrated, a terminal end is projected from a gap between upper/lower half portions of the coupling head, upper/lower flanges of a slider make a sliding contact with a surface of each of upper/lower half portions of each leg portion, each half portion of the leg portion is formed in a flat plate shape with a step and thinner than each half portion of the neck portion and the body portion in a direction perpendicular to a plane in which the fastener tape lies, and extending from the body portion via a crotch portion and guiding the flanges, two or more leg portions are disposed with a predetermined interval in a sliding direction.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: March 4, 2008
    Assignee: YKK Corporation
    Inventors: Masahiro Kusayama, Kenji Yuki, Ryo Tanaka
  • Publication number: 20070251063
    Abstract: An article with a slide fastener in which when a tearing force is applied to an article provided with a slide fastener and a slider makes contact with an end stop, a connecting member having flexibility and connecting between rear faces of right and left fastener stringers is disposed at a position on a side of a fastener element near the end stop, at which the force is not transmitted directly to the slider, a covering tape for covering at least the end stop and the connecting member is disposed on a rear face of the article, so that fastener elements and end stop are blocked from being damaged or the fastener elements are prevented from being dropped out of a fastener tape by a tearing force, and the connecting member is prevented from being hooked or caught by the slider so as to always realize a smooth slider operation.
    Type: Application
    Filed: April 5, 2007
    Publication date: November 1, 2007
    Inventors: Masahiro Kusayama, Yutaka Tominaga, Ryo Tanaka
  • Publication number: 20070169320
    Abstract: The invention provides a waterproof slide fastener and a manufacturing apparatus thereof, wherein each fastener element has a coupling head, a neck portion, a body portion, and leg portions which are continuously fused and integrated, a terminal end is projected from a gap between upper/lower half portions of the coupling head, upper/lower flanges of a slider make a sliding contact with a surface of each of upper/lower half portions of each leg portion, each half portion of the leg portion extending from the body portion via a crotch portion and guiding the flanges, two or more leg portions are disposed with a predetermined interval in a sliding direction, an entire shoulder width of a shoulder portion is larger than a body width of the body portion if it is provided, thereby intensifying fixing strength between a fastener tape and fastener elements and waterproofness, and allowing a smooth sliding of a slider.
    Type: Application
    Filed: February 22, 2007
    Publication date: July 26, 2007
    Inventors: Masahiro Kusayama, Kenji Yuki, Ryo Tanaka
  • Publication number: 20070137006
    Abstract: A waterproof slide fastener in which an entire surface of a fastener tape is covered with elastomer, through holes are made in a side edge of the fastener tape, and fastener elements each comprising a coupling head, a neck portion, an engaging projection, a leg portion and a tongue piece, are molded by injection molding so as to cover the through holes. Reinforcing portions are provided projectingly from sides of the leg portion so as to cover at least a part of each of the through holes in a longitudinal direction of the through holes made in the fastener tape so that the reinforcing portions surround the through holes, so the reinforcing portions prevent the through holes from being exposed even when the fastener tape is bent, thereby maintaining water-tightness and airtightness.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 21, 2007
    Inventors: Ryo Mikuma, Masahiro Kusayama
  • Publication number: 20070067969
    Abstract: The invention provides a waterproof top end stop for a slide fastener for enhancing its waterproof and airproof properties, wherein fastener elements are attached to opposing side edges of a pair of waterproof fastener tapes, an elastic top end stop is attached adjacent to the fastener elements and includes an accommodating portion in a center for accommodating a diamond; protrusions projecting in a front/rear surface direction around the accommodating portion and making a pressure contact with inner faces of blades; passage portions at entrances of the top end stop; and pressing portions on outer edges of insertion leg portions of the top end stop corresponding to the passage portions, outer sides of the pressing portions project outward with respect to contact faces of leg portions of an adjacent fastener element, and the pressing portions are pressed by flanges of the slider and the passage portions are closed firmly simultaneously.
    Type: Application
    Filed: September 28, 2006
    Publication date: March 29, 2007
    Inventors: Masahiro Kusayama, Yutaka Tominaga, Ryo Tanaka
  • Publication number: 20060282998
    Abstract: A slide fastener, wherein in the fastener chain openable and closable from both ends thereof, a box pin and the insert pin, which can join with or separate from each other, are provided at least on an end of the fastener chain; and a protrusion facing the insert pin and projecting from an opposing face is provided at a front end of the box pin; the protrusion has slopes inclined in a direction of approaching the insert pin on upper and lower sides of the protrusion; and the lower side of the protrusion makes contact with a diamond of the reverse opening slider, while the upper side of the protrusion can guide the insert pin smoothly when the pin is inserted.
    Type: Application
    Filed: June 7, 2006
    Publication date: December 21, 2006
    Inventors: Masahiro Kusayama, Kiyomasa Segawa
  • Publication number: 20060236510
    Abstract: Top end stops for slide fastener in which front ends of its fastener chains are opened and no wrinkle is produced by a diamond of a slider, wherein a top end stop is molded with resin such that it includes a notch portion provided on an edge portion of a pair of fastener tapes and the top end stop is formed on a top face of the notch portion; the top end stop is formed at an end portion of a coupling element row with a gap from the coupling element, and a concave portion is formed to allow a diamond of a slider to escape; and an overlapping portion that a coupling head of a mating coupling element is capable of joining is formed at a bottom end of one of the top end stops, whereby the fastener chain can be closed completely by a slider, so that specified waterproof property and water cutout performance are secured.
    Type: Application
    Filed: April 13, 2006
    Publication date: October 26, 2006
    Inventors: Masahiro Kusayama, Satoshi Matsumoto, Ryo Tanaka
  • Publication number: 20050217086
    Abstract: The invention provides a waterproof slide fastener and a manufacturing apparatus thereof, wherein each fastener element has a coupling head, a neck portion, a body portion, and leg portions which are continuously fused and integrated, a terminal end is projected from a gap between upper/lower half portions of the coupling head, upper/lower flanges of a slider make a sliding contact with a surface of each of upper/lower half portions of each leg portion, each half portion of the leg portion extending from the body portion via a crotch portion and guiding the flanges, two or more leg portions are disposed with a predetermined interval in a sliding direction, an entire shoulder width of a shoulder portion is larger than a body width of the body portion if it is provided, thereby intensifying fixing strength between a fastener tape and fastener elements and waterproofness, and allowing a smooth sliding of a slider.
    Type: Application
    Filed: February 22, 2005
    Publication date: October 6, 2005
    Inventors: Masahiro Kusayama, Kenji Yuki, Ryo Tanaka
  • Patent number: 6826807
    Abstract: A fastener which allows to distinguish a genuine fastener from a forged one. An identification yarn containing substance with different optical reactions to irradiation of visible light and to irradiation of infrared rays of a specific wavelength is disposed at a specified position in the tape which is a component of the fastener. As a result, discrimination between genuine and false fasteners can be done safely without damaging the human health.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: December 7, 2004
    Assignee: YKK Corporation
    Inventors: Teruo Inoue, Masahiro Kusayama, Nigel Berry, Hideki Terashima
  • Patent number: 6810896
    Abstract: An improved inflatable tent includes a plurality of inflatable hollow rounded units (1), each tent unit 1 including an outer sheet (4) and an inner sheet (5) connected to each other at their respective ends, a side sheet (6) connecting the outer sheet (4) and the inner sheet (5) along their opposed sides, the side sheet (6) constituting a connecting portion (9), and a floor sheet (8) integrally connected to the lower end of the inner sheet (5). A pair of outer and inner water-impervious slide fasteners (10) are mounted between each pair of adjacent tent units (1) along the outside and insider thereof for joining the pair of adjacent tent units (1) of the tent.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: November 2, 2004
    Assignee: YKK Corporation
    Inventors: Shigeru Ueda, Masahiro Kusayama