Patents by Inventor Kazuo Ukegawa
Kazuo Ukegawa 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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Publication number: 20220313505Abstract: An auxiliary absorbent article (1) that is used by attaching to a skin facing side of an absorbent article and has a longitudinal direction and a width direction, comprising a main body (2) comprising an absorber (3) and a liquid-permeable cover sheet (4) which covers a skin facing side and an outer facing side of the absorber (3) , an adhesive part (7) provided on an outer facing side of the main body (2), and a release sheet (8) provided on an outer facing side of the adhesive part (7) so as to cover the adhesive part (7), wherein the release sheet (8) extends in the longitudinal direction and extends outward in the longitudinal direction beyond at least one end edge in the longitudinal direction of the main body (2).Type: ApplicationFiled: April 21, 2020Publication date: October 6, 2022Applicant: LIVEDO CORPORATIONInventors: Kazuo UKEGAWA, Rei ITO
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Patent number: 9731316Abstract: A nozzle assembly includes an upstream block, an upstream shim, an intermediate shim, a downstream shim and a downstream block arranged in this order in a machine direction MD from the upstream side to the downstream side. A lower end of the nozzle is formed with grooves as guide grooves to support elastics. A first pipe, a dispersion slit for a web and convergence slits for a web define first flow channels wherein the slits are respectively formed with outlets for a web. A second pipe, a dispersion slit for elastics and convergence slits for elastics define a second flow channels wherein the slits are respectively formed with outlets for elastics. The outlets for elastics are formed in the respective guide grooves and each of the outlets for a web lies between each pair of the adjacent outlets for elastics as viewed in the cross direction CD.Type: GrantFiled: September 24, 2015Date of Patent: August 15, 2017Assignee: UNICHARM CORPORATIONInventor: Kazuo Ukegawa
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Publication number: 20160008839Abstract: A nozzle assembly includes an upstream block, an upstream shim, an intermediate shim, a downstream shim and a downstream block arranged in this order in a machine direction MD from the upstream side to the downstream side. A lower end of the nozzle is formed with grooves as guide grooves to support elastics. A first pipe, a dispersion slit for a web and convergence slits for a web define first flow channels wherein the slits are respectively formed with outlets for a web. A second pipe, a dispersion slit for elastics and convergence slits for elastics define a second flow channels wherein the slits are respectively formed with outlets for elastics. The outlets for elastics are formed in the respective guide grooves and each of the outlets for a web lies between each pair of the adjacent outlets for elastics as viewed in the cross direction CD.Type: ApplicationFiled: September 24, 2015Publication date: January 14, 2016Inventor: Kazuo UKEGAWA
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Patent number: 9186693Abstract: A nozzle assembly includes an upstream block, an upstream shim, an intermediate shim, a downstream shim and a downstream block arranged in this order in a machine direction MD from the upstream side to the downstream side. A lower end of the nozzle is formed with grooves as guide grooves to support elastics. A first pipe, a dispersion slit for a web and convergence slits for a web define first flow channels wherein the slits are respectively formed with outlets for a web. A second pipe, a dispersion slit for elastics and convergence slits for elastics define a second flow channels wherein the slits are respectively formed with outlets for elastics. The outlets for elastics are formed in the respective guide grooves and each of the outlets for a web lies between each pair of the adjacent outlets for elastics as viewed in the cross direction CD.Type: GrantFiled: December 16, 2010Date of Patent: November 17, 2015Assignee: UNICHARM CORPORATIONInventor: Kazuo Ukegawa
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Patent number: 9101511Abstract: Disclosed is a disposable pants-type wearing article improved to prevent panels joined to one another from being peeled off from each other. A disposable pants-type wearing article includes a front panel 7, a rear panel 8 and a intermediate panel 6 joined to respective outer surfaces of these two panels 7, 8. Opposite lateral portions 34 of the intermediate panel 6 are formed by joining a pair of sheets together with a second hot melt adhesive 62. Zones coated with the second hot melt adhesive 62 include high density coated zones 72 formed by relatively large application quantity per 1 m2 and low density coated zones 71 formed by relatively small application quantity per 1 m2. Opposite end regions 36, 37 of the intermediate panel 6 joined to the front panel 7 and the rear panel 8 are at least partially formed with the high density coated zones 72.Type: GrantFiled: September 8, 2011Date of Patent: August 11, 2015Assignee: UNICHARM CORPORATIONInventors: Makoto Ichikawa, Kenichi Sasayama, Hiroki Yamamoto, Kazuo Ukegawa, Akihide Ninomiya
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Patent number: 8955570Abstract: An absorbent structure manufacturing apparatus has a feeder that includes a measuring roller provided with a filling region to be filled with absorbent discrete material, a material feeding space to reserve and feed the absorbent material to the filling region, a scraper located downstream of the material feeding space to scrape surplus amount of the absorbent material fed to the filling region, a feed chute to receive and retain temporarily the absorbent material from the filling region, and an open-close movable shutter on a peripheral wall of the feed chute. The measuring roller is rotary driven by a rotary drive and the shutter is opened-closed by an actuator. The rotary drive is rotated at a velocity corresponding to a conveyance velocity of a continuous sheet and the actuator controls the shutter in timing corresponding to the conveyance velocity. The absorbent material is fed onto the continuous sheet.Type: GrantFiled: February 25, 2011Date of Patent: February 17, 2015Assignee: Unicharm CorporationInventors: Akihide Ninomiya, Kazuo Ukegawa
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Publication number: 20140332436Abstract: A disposable wearing article adapted to restrict a possibility that the article might become locally bulky and a packaged assembly of such disposable wearing articles. A diaper (1) has front and rear waist panels (20, 30) defining front and rear waist regions (2, 3), respectively, and an intermediate panel (40) defining parts of the front and rear waist regions and a crotch region (4). The diaper (1) is folded on itself substantially in a flat condition so that inner sheets (24, 34) of the front and rear waist panels (20, 30) may face each other, respectively, and an inner sheet of the intermediate panel (40) may face itself. Specifically, the diaper (1) is folded on itself along a first fold line (81) at least partially corresponding to an imaginary transverse center line (Q-Q).Type: ApplicationFiled: June 28, 2012Publication date: November 13, 2014Inventors: Kenichi Sasayama, Makoto Ichikawa, Kunihiko Katsuragawa, Kazuo Ukegawa
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Patent number: 8678171Abstract: A passing apparatus for a workpiece associated with an absorbent article receives a first sheet-like workpiece at a receiving position, changes a longitudinal direction of the first sheet-like workpiece to a direction that intersects the longitudinal direction at the time the first sheet-like workpiece is received, and discharges the first sheet-like workpiece with the changed longitudinal direction at a discharge position. The passing apparatus includes: a plurality of holding pads each having a plane section to be in contact with and for holding the first sheet-like workpiece, a revolution mechanism for causing the holding pads to revolve about a revolution axis normal to the plane section, and a spin mechanism for causing the holding pad to spin about a spin axis normal to the plane section. On an orbit of the holding pad determined by the revolution mechanism, the receiving position and the discharge position are set.Type: GrantFiled: June 22, 2011Date of Patent: March 25, 2014Assignee: Uni-Charm CorporationInventors: Akihide Ninomiya, Kazuo Ukegawa, Hiroki Yamamoto
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Patent number: 8668680Abstract: A disposable wearing article includes a liquid-absorbent structure that is adapted to be spaced from the wearer's skin to protect the wearer's skin from being soiled with body waste. A crotch member defining parts of front and rear waist regions and a crotch region has a front end lying in the front waist region and a rear end lying in the rear waist region wherein at least one of the front and rear ends defines non-bonded regions in an intermediate zone as viewed in the transverse direction X of the crotch member and is attached to the outer surface of an elastic waist panel by the intermediary of square U-shaped bonded regions opening toward the crotch region. In areas defining the non-bonded regions, body waste retaining space(s) are formed between the elastic waist panel and the crotch member.Type: GrantFiled: December 16, 2010Date of Patent: March 11, 2014Assignee: Unicharm CorporationInventors: Makoto Ichikawa, Kenichi Sasayama, Hiroki Yamamoto, Kazuo Ukegawa, Akihide Ninomiya
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Patent number: 8662133Abstract: In a ultrasonic processing apparatus, upstream conveyor and downstream conveyor allow a fibrous web to run in a machine direction continuously. Between the conveyors, a working surface of a first mechanical element serving as a stationary element of the ultrasonic processing apparatus extends diagonally with respect to the machine direction. The fibrous web runs in the machine direction above the working surface. The ultrasonic processing apparatus includes a second mechanical element adapted to move in a direction diagonally intersecting the machine direction. The working surface of the first mechanical element cooperates with the second mechanical element to subject the fibrous web to ultrasonic processing. One of an ultrasonic horn and an anvil is used as the first mechanical element and a remainder of the ultrasonic horn and the anvil is used as the second mechanical element.Type: GrantFiled: September 6, 2011Date of Patent: March 4, 2014Assignee: Unicharm CorporationInventors: Akihide Ninomiya, Kazuo Ukegawa, Hiroki Yamamoto
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Patent number: 8646506Abstract: An apparatus for manufacturing bodily exudates absorbent structures has a rotating drum to convey a first continuous sheet, a feeding mechanism, a second conveying mechanism to convey a second continuous sheet and a sealing mechanism to join the first and second continuous sheets. The rotating drum is formed on its peripheral surface with depressions, leaving a non-depressed peripheral surface segment. Each of the depressions is formed in a central region with a central through-hole extending through each depression from an outer surface to an inner surface of the rotating drum. Within the rotating drum, a suction mechanism is installed to provide a suction effect directed from the outer surface toward the inner surface of the rotating drum so that the first continuous sheet is formed with a first concave region having been deformed along each depression and a second concave region having been deformed toward the central through-hole.Type: GrantFiled: February 24, 2011Date of Patent: February 11, 2014Assignee: Unicharm CorporationInventors: Kazuo Ukegawa, Akihide Ninomiya
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Publication number: 20130226124Abstract: A disposable pull-on wearing article includes a waist panel having a skin-facing side and non-skin-facing side and a crotch panel connected to the waist panel. The crotch panel includes a crotch inner sheet lying on the skin-facing side, a crotch outer sheet lying on the non-skin-facing side, a pair of side flaps and a pair of end flaps extending along opposite side edges and opposite end edges of the inner and outer sheets, respectively, and paired sets of leg elastics extending along the opposite side edges in a longitudinal direction. Crossover regions of longitudinally opposite end portions of the side flaps and transversely opposite lateral portions of the end flaps are folded onto the skin-facing side and the crossover regions define nonexistent regions in which none of the elastics exists and the nonexistent regions are attached to the front panel of the waist panel.Type: ApplicationFiled: January 13, 2012Publication date: August 29, 2013Applicant: UNICHARM CORPORATIONInventors: Makoto Ichikawa, Kenichi Sasayama, Kunihiko Katsuragawa, Kazuo Ukegawa, Akihide Ninomiya
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Publication number: 20130172841Abstract: Disclosed is a disposable pants-type wearing article improved to prevent panels joined to one another from being peeled off from each other. A disposable pants-type wearing article includes a front panel 7, a rear panel 8 and a intermediate panel 6 joined to respective outer surfaces of these two panels 7, 8. Opposite lateral portions 34 of the intermediate panel 6 are formed by joining a pair of sheets together with a second hot melt adhesive 62. Zones coated with the second hot melt adhesive 62 include high density coated zones 72 formed by relatively large application quantity per 1 m2 and low density coated zones 71 formed by relatively small application quantity per 1 m2. Opposite end regions 36, 37 of the intermediate panel 6 joined to the front panel 7 and the rear panel 8 are at least partially formed with the high density coated zones 72.Type: ApplicationFiled: September 8, 2011Publication date: July 4, 2013Applicant: UNICHARM CORPORATIONInventors: Makoto Ichikawa, Kenichi Sasayama, Hiroki Yamamoto, Kazuo Ukegawa, Akihide Ninomiya
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Publication number: 20130167629Abstract: In a ultrasonic processing apparatus, upstream conveyor and downstream conveyor allow a fibrous web to run in a machine direction continuously. Between the conveyors, a working surface of a first mechanical element serving as a stationary element of the ultrasonic processing apparatus extends diagonally with respect to the machine direction. The fibrous web runs in the machine direction above the working surface. The ultrasonic processing apparatus includes a second mechanical element adapted to move in a direction diagonally intersecting the machine direction. The working surface of the first mechanical element cooperates with the second mechanical element to subject the fibrous web to ultrasonic processing. One of an ultrasonic horn and an anvil is used as the first mechanical element and a remainder of the ultrasonic horn and the anvil is used as the second mechanical element.Type: ApplicationFiled: September 6, 2011Publication date: July 4, 2013Applicant: UNICHARM CORPORATIONInventors: Akihide Ninomiya, Kazuo Ukegawa, Hiroki Yamamoto
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Publication number: 20130140755Abstract: A passing apparatus for a workpiece associated with an absorbent article receives a first sheet-like workpiece at a receiving position, changes a longitudinal direction of the first sheet-like workpiece to a direction that intersects the longitudinal direction at the time the first sheet-like workpiece is received, and discharges the first sheet-like workpiece with the changed longitudinal direction at a discharge position. The passing apparatus includes: a plurality of holding pads each having a plane section to be in contact with and for holding the first sheet-like workpiece, a revolution mechanism for causing the holding pads to revolve about a revolution axis normal to the plane section, and a spin mechanism for causing the holding pad to spin about a spin axis normal to the plane section. On an orbit of the holding pad determined by the revolution mechanism, the receiving position and the discharge position are set.Type: ApplicationFiled: June 22, 2011Publication date: June 6, 2013Applicant: UNI-CHARM CORPORATIONInventors: Akihide Ninomiya, Kazuo Ukegawa, Hiroki Yamamoto
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Patent number: 8419882Abstract: In a method for continuously making pull-on disposable wearing, a web is fed in a machine direction. The web is formed with first fastener elements on both sides of a region defining a cut line extending in a cross direction. Second fastener elements on a fastener base sheet are engaged with the respective first fastener elements, and a region between these first fastener elements is cut away from the web. Then, the web is folded in two and a side edge of the web is bonded to the fastener base sheet. Thereafter, the web is successively cut along the cut lines to separate the web into segments each of which is a pull-on wearing article having front and rear waist regions adapted to be detachably connected with each other by the first and second fastener elements.Type: GrantFiled: April 12, 2011Date of Patent: April 16, 2013Assignee: Uni-Charm CorporationInventor: Kazuo Ukegawa
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Publication number: 20130025795Abstract: An apparatus for manufacturing bodily exudates absorbent structures has a rotating drum to convey a first continuous sheet, a feeding mechanism, a second conveying mechanism to convey a second continuous sheet and a sealing mechanism to join the first and second continuous sheets. The rotating drum is formed on its peripheral surface with depressions, leaving a non-depressed peripheral surface segment. Each of the depressions is formed in a central region with a central through-hole extending through each depression from an outer surface to an inner surface of the rotating drum. Within the rotating drum, a suction mechanism is installed to provide a suction effect directed from the outer surface toward the inner surface of the rotating drum so that the first continuous sheet is formed with a first concave region having been deformed along each depression and a second concave region having been deformed toward the central through-hole.Type: ApplicationFiled: February 24, 2011Publication date: January 31, 2013Applicant: UNICHARM CORPORATIONInventors: Kazuo Ukegawa, Akihide Ninomiya
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Publication number: 20130025792Abstract: An absorbent structure manufacturing apparatus has a feeder that includes a measuring roller provided with a filling region to be filled with absorbent discrete material, a material feeding space to reserve and feed the absorbent material to the filling region, a scraper located downstream of the material feeding space to scrape surplus amount of the absorbent material fed to the filling region, a feed chute to receive and retain temporarily the absorbent material from the filling region, and an open-close movable shutter on a peripheral wall of the feed chute. The measuring roller is rotary driven by a rotary drive and the shutter is opened-closed by an actuator. The rotary drive is rotated at a velocity corresponding to a conveyance velocity of a continuous sheet and the actuator controls the shutter in timing corresponding to the conveyance velocity. The absorbent material is fed onto the continuous sheet.Type: ApplicationFiled: February 25, 2011Publication date: January 31, 2013Applicant: UNICHARM CORPORATIONInventors: Akihide Ninomiya, Kazuo Ukegawa
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Publication number: 20130012907Abstract: A disposable pants-type wearing article adapted to prevent body waste from leaking out beyond the peripheries of the leg-openings when disposing of the used article. A disposable pants-type wearing article includes a front panel, a rear panel and a central panel. When the front panel and the rear panel are respectively folded with respective inner surfaces lying inside, opposite side edges of the central panel get close to each other in a midsection of a crotch region to a distance in a range of 0 to 50 mm.Type: ApplicationFiled: March 31, 2011Publication date: January 10, 2013Applicant: UNICHARM CORPORATIONInventors: Kenichi Sasayama, Makoto Ichikawa, Hiroki Yamamoto, Kazuo Ukegawa, Akehide Ninomiya
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Publication number: 20120271266Abstract: Provided is a disposable wearing article improved so that the tensile stress in the middle of the crotch region as well as in the vicinity thereof can be set to be higher than in the other regions without adjusting the number and thickness of the leg elastic elements and a relatively large body waist retaining space can be formed to protect the wearer's skin from being soiled with body waste. A crotch region is provided in both lateral portions thereof with a plurality of leg elastic elements extending in a longitudinal direction Y wherein the respective outermost elastic elements are laid so as to define concave curves in a middle zone of the crotch region and in the vicinity thereof.Type: ApplicationFiled: January 5, 2011Publication date: October 25, 2012Applicant: UNICHARM CORPORATIONInventors: Kenichi Sasayama, Makoto Ichikawa, Hiroki Yamamoto, Kazuo Ukegawa, Akihide Ninomiya