Patents by Inventor Kenji Yuki
Kenji Yuki 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).
-
Publication number: 20110265291Abstract: A slide fastener where each fastener element includes an upper half element portion disposed at a first surface side of a fastener tape and a lower half element portion disposed at a second surface side of the fastener tape. The upper half element portion includes a first tape-sandwiching portion and a first head portion of a tapered form that extends from the first tape-sandwiching portion. The upper half element portion has a tapered portion that gradually decreases in a dimension between front and rear side surfaces, in the tape length direction, of at least the first tape-sandwiching portion as it goes upward. Each fastener element can be lightweight, and the fastener element can look like a metal fastener element.Type: ApplicationFiled: January 13, 2009Publication date: November 3, 2011Applicant: YKK CoporationInventors: Masayoshi Kojima, Kenji Yuki
-
Patent number: 7416397Abstract: 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: GrantFiled: February 22, 2007Date of Patent: August 26, 2008Assignee: YKK CorporationInventors: Masahiro Kusayama, Kenji Yuki, Ryo Tanaka
-
Patent number: 7337506Abstract: 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: GrantFiled: February 22, 2005Date of Patent: March 4, 2008Assignee: YKK CorporationInventors: Masahiro Kusayama, Kenji Yuki, Ryo Tanaka
-
Publication number: 20070169320Abstract: 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: ApplicationFiled: February 22, 2007Publication date: July 26, 2007Inventors: Masahiro Kusayama, Kenji Yuki, Ryo Tanaka
-
Patent number: 7111367Abstract: This invention relates to a concealed-type slider. Side walls are erected on both sides of a bottom plate of a body and a top end of each side wall is bent to form a flange. A guide portion is provided by forming a down-grade slope inclined from a leading end of a shoulder opening side of the flange between the flange and the side wall. The leading end of the flange provided with this guide portion is disposed at right angle to or tilted more or less toward a rear mouth side with respect to a side face of a guide post. Consequently, when an insert pin is inserted, the guide portion guides a fastener tape smoothly and when sliding the slider in its closing direction, the sliding operation can be executed smoothly.Type: GrantFiled: September 17, 2003Date of Patent: September 26, 2006Assignee: YKK CorporationInventors: Keiichi Keyaki, Kenji Yuki
-
Publication number: 20050217086Abstract: 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: ApplicationFiled: February 22, 2005Publication date: October 6, 2005Inventors: Masahiro Kusayama, Kenji Yuki, Ryo Tanaka
-
Patent number: 6851162Abstract: A reinforcement tape is stuck to an outer front surface of a fastener tape and a fastener element removed portion at a space portion, in which fastener elements are removed and to which the separable bottom end stop of the concealed type slide fastener, for example, a insert pin or the like is attached, by ultrasonic welding. The reinforcement tape may be, for example, a tape whose front surface is made of a thermoplastic elastomer film while its rear surface is made of hot melt adhesive agent. At the same time of the above sticking, an edge portion is formed into a U shape and its surface is reinforced and then, the insert pin or the like is attached to this portion. The fastener tape itself does not come into contact with a diamond of a slider, even if outer face of the U-shaped edge portion comes into sliding contact with the diamond, so the fastener tape is protected from being worn or damaged.Type: GrantFiled: January 10, 2003Date of Patent: February 8, 2005Assignee: YKK CorporationInventors: Kenji Yuki, Osamu Igarashi
-
Publication number: 20040055119Abstract: This invention relates to a concealed-type slider. Side walls are erected on both sides of a bottom plate of a body and a top end of each side wall is bent to form a flange. A guide portion is provided by forming a down-grade slope inclined from a leading end of a shoulder opening side of the flange between the flange and the side wall. The leading end of the flange provided with this guide portion is disposed at right angle to or tilted more or less toward a rear mouth side with respect to a side face of a guide post. Consequently, when an insert pin is inserted, the guide portion guides a fastener tape smoothly and when sliding the slider in its closing direction, the sliding operation can be executed smoothly.Type: ApplicationFiled: September 17, 2003Publication date: March 25, 2004Applicant: YKK CORPORATIONInventors: Keiichi Keyaki, Kenji Yuki
-
Patent number: 6704975Abstract: A separable bottom end stop for a concealed slide fastener, wherein reinforcement portions for reinforcing bent edge portions of a fastener tape are molded integrally with a box pin and a separable pin using resin, such that the reinforcement portions are swollen from a top surface of the tape, while the reinforcement portion on the box pin side is formed such that a bottom end thereof is in the same plane as the box pin. A front end of the reinforcement portion on the separable pin side has a protruded portion being protruded in parallel to the separable pin and a box has an L-shaped engaging portion and a contact portion provided on a surface thereof. When the box pin is inserted into and fixed to the box and the separable pin is inserted into the box, the protruded portion makes contact with the engaging portion.Type: GrantFiled: November 8, 2002Date of Patent: March 16, 2004Assignee: YKK CorporationInventors: Satoshi Matsumoto, Kenji Yuki, Shigeyoshi Takazawa, Youhei Kaetsu
-
Publication number: 20030140465Abstract: A reinforcement tape is stuck to an outer front surface of a fastener tape and a fastener element removed portion at a space portion, in which fastener elements are removed and to which the separable bottom end stop of the concealed type slide fastener, for example, a insert pin or the like is attached, by ultrasonic welding. The reinforcement tape may be, for example, a tape whose front surface is made of a thermoplastic elastomer film while its rear surface is made of hot melt adhesive agent. At the same time of the above sticking, an edge portion is formed into a U shape and its surface is reinforced and then, the insert pin or the like is attached to this portion. The fastener tape itself does not come into contact with a diamond of a slider, even if outer face of the U-shaped edge portion comes into sliding contact with the diamond, so the fastener tape is protected from being worn or damaged.Type: ApplicationFiled: January 10, 2003Publication date: July 31, 2003Inventors: Kenji Yuki, Osamu Igarashi
-
Publication number: 20030115725Abstract: A separable bottom end stop for a concealed slide fastener, wherein reinforcement portions for reinforcing bent edge portions of a fastener tape are molded integrally with a box pin and a separable pin using resin, such that the reinforcement portions are swollen from a top surface of the tape, while the reinforcement portion on the box pin side is formed such that a bottom end thereof is in the same plane as the box pin. A front end of the reinforcement portion on the separable pin side has a protruded portion being protruded in parallel to the separable pin and a box has an L-shaped engaging portion and a contact portion provided on a surface thereof. When the box pin is inserted into and fixed to the box and the separable pin is inserted into the box, the protruded portion makes contact with the engaging portion.Type: ApplicationFiled: November 8, 2002Publication date: June 26, 2003Inventors: Satoshi Matsumoto, Kenji Yuki, Shigeyoshi Takazawa, Youhei Kaetsu
-
Patent number: 6112375Abstract: A slider for a slide fastener with an automatic locking mechanism comprises a small number of components and hence can be assembled and operated with ease. A slider body of the slider has a receiving hole for receiving a resilient plate running in parallel with a guide groove and arranged in the upper wing plate of the slider body. The receiving hole has an enlarged open section arranged at the side of a rear opening and communicating with the guide groove to a claw receiving hole, and is formed to have a narrow tubular shape above a guide post. A wide groove is arranged along a lateral side of the receiving hole with a gap therebetween. A through hole is arranged to perpendicularly cross the receiving hole at the middle thereof.Type: GrantFiled: March 31, 1998Date of Patent: September 5, 2000Assignee: YKK CorporationInventors: Kenji Yuki, Koji Muratsubaki, Hiroo Minami
-
Patent number: 5093966Abstract: A pull tab assembly for slide fastener slider is disclosed, which comprises a clamper having at one of its ends a hook, a resilient member supported in the hook and a pull tab having a pair of ears which each have such a geometry that can facilitate mounting and dismounting of the pull tab with respect to the clamper and further protect the resilient member against deformation or damage.Type: GrantFiled: December 26, 1990Date of Patent: March 10, 1992Assignee: Yoshida Kogyo K. K.Inventors: Kenji Yuki, Susumu Ishii
-
Patent number: 5068950Abstract: In a slider for slide fasteners including a slider body having an lug on its upper surface; a provisional pull tab is releasably mounted on the slider body during a finishing process and inspection. The provisional pull tab comprises a grip portion adapted for being gripped and pulled for manipulation of the slider; a surrounding attachment rim integrally extending from the grip portion and defining with a proximal end of the grip portion an aperture, through which the attaching lug is inserted so that the provisional pull tab is pivotally mounted on the lug; and a fragile portion disposed around the aperture so that the provisional pull tab can be removed from the lug with great ease.Type: GrantFiled: March 30, 1990Date of Patent: December 3, 1991Assignee: Yoshida Kogyo K. K.Inventor: Kenji Yuki
-
Patent number: D512340Type: GrantFiled: August 22, 2003Date of Patent: December 6, 2005Assignee: YKK CorporationInventors: Keiichi Keyaki, Kenji Yuki
-
Patent number: D320957Type: GrantFiled: October 16, 1989Date of Patent: October 22, 1991Assignee: Yoshida Kogyo K.K.Inventor: Kenji Yuki
-
Patent number: D324662Type: GrantFiled: September 21, 1989Date of Patent: March 17, 1992Assignee: Yoshida Kogyo K.K.Inventor: Kenji Yuki
-
Patent number: D628123Type: GrantFiled: September 2, 2009Date of Patent: November 30, 2010Assignee: YKK CorporationInventors: Masayoshi Kojima, Kenji Yuki
-
Patent number: D392217Type: GrantFiled: December 20, 1996Date of Patent: March 17, 1998Assignee: YKK CorporationInventor: Kenji Yuki
-
Patent number: D395693Type: GrantFiled: December 20, 1996Date of Patent: June 30, 1998Assignee: YKK CorporationInventor: Kenji Yuki