Patents by Inventor Takaaki Shimada
Takaaki Shimada 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: 8915900Abstract: A disposable diaper having front and rear waist regions that comprise an upper elasticized region extending in a vicinity of a waist-opening periphery, lower elasticized regions, intermediate elasticized region extending between the upper elasticized region and the lower elasticized regions and outside longitudinally opposite ends of a liquid-absorbent structure. At least in the front waist region of the front and rear waist regions, there is a non-elasticized region opposed to a central zone of a liquid-absorbent core wherein a tensile stress of the intermediate elasticized region is lower than a tensile stress of the upper elasticized region.Type: GrantFiled: August 14, 2008Date of Patent: December 23, 2014Assignee: Uni-Charm CorporationInventors: Takaaki Shimada, Akiko Yagi, Hideaki Maki
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Publication number: 20130237944Abstract: A bodily fluid absorbent structure that includes an absorbent core, an upper sheet covering an upper surface of an absorbent core and a lower sheet covering a lower surface of the absorbent core. Of the bodily fluid absorbent structure, at least an area extending in a central portion of a crotch region is formed with a high stiffness region including a plurality of debosses. The debosses are respectively shaped so that a length dimension thereof in a transverse direction is longer than a length dimension thereof in a longitudinal direction. The high stiffness region includes a plurality of longitudinal low stiffness zones extending in the longitudinal direction and formed with none of the debosses, a plurality of transverse high stiffness zones formed with the debosses arranged intermittently in the transverse direction and transverse low stiffness zones each lying between each pair of the transverse high stiffness zones being adjacent in the longitudinal direction and formed with none of the debosses.Type: ApplicationFiled: November 30, 2011Publication date: September 12, 2013Applicant: Unicharm CorporationInventors: Yasuhiro Yamanaka, Takaaki Shimada, Naoto Ohashi
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Patent number: 8486039Abstract: The present invention provides a disposable diaper which prevents body waste from leaking sideways without sacrificing a bodily fluid absorbing capacity of a liquid-absorbent structure and to assure a high retention for urine and discharged feces. The waist elastic members includes first and second waist elastic members wherein elastic members extend in the transverse direction across opposite lateral regions so as not to present in central zones of front and rear waist regions. The second waist elastic members in the front waist region extend from transverse opposite side edges of the front waist region in the transverse direction beyond transverse opposite side edges of a liquid-absorbent core while the second elastic members in the rear waist region extend from transverse opposite side edges in the transverse direction and terminate short of the side edges of the core.Type: GrantFiled: August 15, 2008Date of Patent: July 16, 2013Assignee: Uni-Charm CorporationInventors: Takaaki Shimada, Akiko Yagi, Hideaki Maki
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Patent number: 8372053Abstract: A pants-type disposable wearing article includes a liquid-impervious base sheet, a liquid-absorbent panel and transverse elastic members, each having opposite fixed portions secured to the lateral zones of the edges article, and a free portion extending in the transverse direction of the article between the opposite fixed portions across the panel and secured neither to the base sheet nor to the panel. The article further has leg-surrounding elastic members. At the crossover points of the transverse elastic members and the leg-surrounding elastic members, the elastic members are not secured one to another.Type: GrantFiled: January 27, 2004Date of Patent: February 12, 2013Assignee: Uni-Charm CorporationInventors: Takaaki Shimada, Takako Uosawa, Naoko Takada
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Patent number: 7915477Abstract: A disposable wearing article has its outer surface formed from a nonwoven fabric of thermoplastic synthetic fibers. A tape strip constituting each of the tape fasteners is folded in Z- or inverted Z-shape and attached in such folded state to the outer surface of the wearing article by means of first adhesive. As for a spot at which the tape strip is attached to the outer surface of the wearing article, the nonwoven fabric at least partially presents a film-like outer surface.Type: GrantFiled: October 17, 2008Date of Patent: March 29, 2011Assignee: Uni-Charm CorporationInventors: Takaaki Shimada, Junko Sato
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Publication number: 20110022019Abstract: The present invention provides a disposable diaper improved so as to prevent body waste from leaking sideways without sacrificing a bodily fluid absorbing capacity of a liquid-absorbent structure and to assure appropriate fitness to the wearer's body. In each of front and rear waist regions 13, 14, a disposable diaper 10 comprises an upper elasticized region 18 extending in a vicinity of a waist-opening periphery 16a, lower elasticized regions 20A, 20B, intermediate elasticized region 19 extending between the upper elasticized region 18 and the lower elasticized regions 20A, 20B and outside longitudinally opposite ends 12a, 12b of a liquid-absorbent structure 12, and, at least in the front waist region 13 of the front and rear waist regions 13, 14, a non-elasticized region 30 opposed to a central zone of a liquid-absorbent core wherein a tensile stress of the intermediate elasticized region 19 is lower than a tensile stress of the upper elasticized region 18.Type: ApplicationFiled: August 14, 2008Publication date: January 27, 2011Inventors: Takaaki Shimada, Akiko Yagi, Hideaki Maki
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Publication number: 20100324519Abstract: The present invention provides a disposable diaper improved so as to prevent body waste from leaking sideways without sacrificing a bodily fluid absorbing capacity of a liquid-absorbent structure and to assure a high retention for urine and discharged feces. The waist elastic members includes first waist elastic members 31 extending in a transverse direction in a vicinity of a waist-opening 16 and second waist elastic members 32 provided between leg-opening 17 and first elastic members 31 and the first elastic members and extending in the transverse direction across opposite lateral regions so as not to present in central zones of front and rear waist regions 13, 14.Type: ApplicationFiled: August 15, 2008Publication date: December 23, 2010Inventors: Takaaki Shimada, Akiko Yagi, Hideaki Maki
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Publication number: 20100312214Abstract: The present invention on its first aspect provides a disposable diaper improved so as to prevent body waste from leaking sideways without sacrificing a bodily fluid absorbing capacity of a liquid-absorbent structure and to assure appropriate fitness to the wearer's body. In each of front and rear waist regions 13, 14, a disposable diaper 10 comprises an upper elasticized region 18 extending in a vicinity of a waist-opening periphery 16a, lower elasticized regions 20A, 20B, intermediate elasticized region 19 extending between the upper elasticized region 18 and the lower elasticized regions 20A, 20B and outside longitudinally opposite ends 12a, 12b of a liquid-absorbent structure 12, and, at least in the front waist region 13 of the front and rear waist regions 13, 14, a non-elasticized region 30 opposed to a central zone of a liquid-absorbent core wherein a tensile stress of the intermediate elasticized region 19 is lower than a tensile stress of the upper elasticized region 18.Type: ApplicationFiled: September 16, 2008Publication date: December 9, 2010Inventors: Takaaki Shimada, Akiko Yagi, Hideaki Maki
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Patent number: 7588561Abstract: A pull-on disposable wearing article is formed in a crotch region with first and second pairs of folding guide lines extending from first and second waist lateral margins toward a transverse middle of the crotch region, respectively. The crotch region is divided into a first zone enclosed by the first waist lateral margin and the first folding guide lines, a second zone enclosed by the second waist lateral margin and the second folding guide lines and a third zone outside the first and second zones. Inside the side edges of the core, first and second elastic members are contractible attached to the article. The first and second elastic members extend across the first and second zones to the third zone. The first and second zones are pulled inward under contractile forces of the elastic members to form tucks which are convex inwardly of the leg-holes.Type: GrantFiled: January 9, 2004Date of Patent: September 15, 2009Assignee: Uni-Charm CorporationInventors: Yasuhiko Kenmochi, Takaaki Shimada, Takako Uosawa, Toshifumi Otsubo
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Patent number: 7527617Abstract: A disposable wearing article has its outer surface formed from a nonwoven fabric of thermoplastic synthetic fibers. A tape strip constituting each of the tape fasteners is folded in Z- or inverted Z-shape and attached in such folded state to the outer surface of the wearing article by means of first adhesive. As for a spot at which the tape strip is attached to the outer surface of the wearing article, the nonwoven fabric at least partially presents a film-like outer surface.Type: GrantFiled: October 19, 2004Date of Patent: May 5, 2009Assignee: Uni-Charm CorporationInventors: Takaaki Shimada, Junko Sato
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Publication number: 20090062759Abstract: A disposable wearing article has its outer surface formed from a nonwoven fabric of thermoplastic synthetic fibers. A tape strip constituting each of the tape fasteners is folded in Z- or inverted Z-shape and attached in such folded state to the outer surface of the wearing article by means of first adhesive. As for a spot at which the tape strip is attached to the outer surface of the wearing article, the nonwoven fabric at least partially presents a film-like outer surface.Type: ApplicationFiled: October 17, 2008Publication date: March 5, 2009Applicant: UNI-CHARM CORPORATIONInventors: Takaaki Shimada, Junko Sato
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Patent number: 7331946Abstract: A disposable pull-on undergarment includes each of front and rear waist-encircling regions having a first elasticized zone and a second elasticized zone extending in a waist-encircling direction. Tensile stress of the first elasticized zone is greater than that of the second elasticized zone. The undergarment thus constituted can reduce an incidence of intense pressure locally exerted on a waist of a wearer of the undergarment and avoid an occasion whereby an excrement-absorbing function of a core is hindered.Type: GrantFiled: October 11, 2001Date of Patent: February 19, 2008Assignee: Uni-Charm CorporationInventors: Takaaki Shimada, Kenji Nakamura
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Patent number: 7326193Abstract: A disposable pants-type wearing article includes a body fluid absorbent assembly. In a crotch region of the wearing article, transversely opposite side edges of the body fluid absorbent assembly are respectively formed with folded portions so that a non-folded portion extending in from of the folded portions may have a relatively small extent and a non-folded portion extending behind the folded portions may have a relatively large extent.Type: GrantFiled: April 15, 2004Date of Patent: February 5, 2008Assignee: Uni-Charm CorporationInventors: Takaaki Shimada, Shunsuke Takino, Takashi Tsukayoshi
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Patent number: 7169137Abstract: An absorbent article includes a chassis defining front and rear waist regions, an absorbent panel laid on the inner surface of the chassis and a decorative element adapted to be seen through the chassis and interposed between an intermediate zone of the chassis and the absorbent panel. An optical transmittance exhibited by the intermediate zone of the chassis in which the decorative element is laid is higher than an optical transmittance exhibited by opposite lateral zones of the chassis.Type: GrantFiled: January 26, 2005Date of Patent: January 30, 2007Assignee: Uni-Charm Co., Ltd.Inventor: Takaaki Shimada
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Patent number: 7150729Abstract: A disposable pull-on wearing article wherein: a body fluid absorbent assembly of a disposable pull-on wearing article is formed in a crotch region with a pair of inwardly folded portions on both sides of a longitudinal center line. The body fluid absorbent assembly comprises an hourglass-shaped core and a cover sheet used to cover this core. The core is formed its both side edges with notches and respective regions of the cover sheet lying in these notches are provided with a pair of crotch region elastic members extending in a back-and-forth direction and intersecting folding guide lines.Type: GrantFiled: July 1, 2004Date of Patent: December 19, 2006Assignee: Uni-Charm CorporationInventors: Takaaki Shimada, Naoko Takada
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Patent number: 6994697Abstract: A pull-on disposable diaper that is provided in parallel to transversely opposite side edges thereof in its rear waist region with fastening tape strips. The tape strips are configured in its rolled up state for disposable after the diaper has been used. Each of the tape strips includes longitudinally opposite end regions firmly bonded to respective peripheral edges of the diaper's waist-opening and leg-openings. An intermediate region of each of the fastening tape strips includes an adhesive region on its inner surface which is adapted to be separably bonded to the outer surface of the diaper when rolled up for disposal.Type: GrantFiled: January 30, 2001Date of Patent: February 7, 2006Assignee: Uni-Charm CorporationInventors: Takaaki Shimada, Seiji Suzuki
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Publication number: 20050131366Abstract: An absorbent article comprises a chassis defining front and rear waist regions, an absorbent panel laid on the inner surface of the chassis and a decorative element adapted to be seen through the chassis and interposed between an intermediate zone of the chassis and the absorbent panel. An optical transmittance exhibited by the intermediate zone of the chassis in which the decorative element is laid is higher than an optical transmittance exhibited by opposite lateral zones of the chassis.Type: ApplicationFiled: January 26, 2005Publication date: June 16, 2005Applicant: UNI-CHARM CO., LTDInventor: Takaaki Shimada
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Publication number: 20050090788Abstract: A disposable wearing article has its outer surface formed from a nonwoven fabric of thermoplastic synthetic fibers. A tape strip constituting each of the tape fasteners is folded in Z- or inverted Z-shape and attached in such folded state to the outer surface of the wearing article by means of first adhesive. As for a spot at which the tape strip is attached to the outer surface of the wearing article, the nonwoven fabric at least partially presents a film-like outer surface.Type: ApplicationFiled: October 19, 2004Publication date: April 28, 2005Applicant: UNI-CHARM CORPORATIONInventors: Takaaki Shimada, Junko Sato
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Publication number: 20050075618Abstract: A pull-on disposable wearing article is formed in a crotch region with a pair of first folding guide lines extending from a first waist lateral margin toward a transverse middle of the crotch region and a pair of second folding guide lines extending from a second waist lateral margin toward the transverse middle of the crotch region. The crotch region is divided into a first zone enclosed by the first waist lateral margin and the first folding guide lines, a second zone enclosed by the second waist lateral margin and the second folding guide lines and a third zone except these first and second zones. Inside the side edges of the core, first and second elastic members stretched at a predetermined ratio are contractibly attached to the article. These first and second elastic members extend in the leg-surrounding direction across these zones to the third zone.Type: ApplicationFiled: January 9, 2004Publication date: April 7, 2005Inventors: Yasuhiko Kenmochi, Takaaki Shimada, Takako Uosawa, Toshifumi Otsubo
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Publication number: 20050004545Abstract: A disposable pull-on wearing article wherein: a body fluid absorbent assembly of a disposable pull-on wearing article is formed in a crotch region with a pair of inwardly folded portions on both sides of a longitudinal center line. The body fluid absorbent assembly comprises an hourglass-shaped core and a cover sheet used to cover this core. The core is formed its both side edges with notches and respective regions of the cover sheet lying in these notches are provided with a pair of crotch region elastic members extending in a back-and-forth direction and intersecting folding guide lines.Type: ApplicationFiled: July 1, 2004Publication date: January 6, 2005Applicant: UNI-CHARM CORPORATIONInventors: Takaaki Shimada, Naoko Takada