Patents by Inventor Toshifumi Otsubo
Toshifumi Otsubo 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: 7803243Abstract: A disposable pants-type diaper includes a separator interposed between the inner surface of a pants-type skin-covering assembly and the wearer's skin so as to protect the wearer's skin from being soiled with feces. The separator comprises a separator extending from a bottom of a crotch region of the diaper toward a front waist region and a rear waist region and fixed to the crotch region along transversely opposite margins thereof. The separator has a front end and a rear end both extending in a transverse direction of the crotch region and elastically extensible and contractible. In a transversely middle of the crotch region, these front and rear end edges are spaced from the inner surface of the absorbent chassis and joined integrally with each other.Type: GrantFiled: October 24, 2007Date of Patent: September 28, 2010Assignee: Uni-Charm CorporationInventor: Toshifumi Otsubo
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Publication number: 20100211036Abstract: The present invention provides a disposable pants-type diaper including on a crotch region thereof a separator adapted to prevent feces from coming in contact with the wearer's skin. A basic structure has the crotch region, which is provided with a folded sheet piece attached thereto so as to form the separator. The folded sheet piece is obtained by folding back the sheet piece along a first transverse center line thereof to define a first half and a second half placed upon each other and bonding end edges of these two halves to each other at responsive middles of these end edges in a transverse direction. With the first transverse center line brought close to a second transverse center line, the folded sheet piece is placed upon the crotch region and the lateral edges of the first half are bonded to the crotch region while a region of the first half defined by the lateral edges is kept to be spaced from the crotch region.Type: ApplicationFiled: April 26, 2010Publication date: August 19, 2010Applicant: UNI-CHARM CORPORATIONInventor: Toshifumi OTSUBO
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Patent number: 7763002Abstract: A disposable pull-on type diaper has a separator interposed between an inner surface of an absorbent chassis and the wearer's skin so as to protect the diaper wearer's skin from being soiled with feces. The separator is formed by a piece of sheet extending from a bottom of a crotch region of the diaper toward a front waist region and a rear waist region and fixed to lateral edges of the crotch region. The piece of sheet has a front end and a rear end both extending in a transverse direction of the crotch region. These front end and rear end are free along middle segments thereof as viewed in the transverse direction of the crotch region from an inner surface of an absorbent chassis and inseparably integrated with each other.Type: GrantFiled: April 2, 2007Date of Patent: July 27, 2010Assignee: Uni-Charm CorporationInventor: Toshifumi Otsubo
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Patent number: 7758558Abstract: A pants-type disposable wearing article includes a chassis forming a body of the article, an absorbent structure disposed on an inner surface of the chassis, and a plurality of elastic members arranged in waist-surrounding regions. Opposite end portions of the elastic members in a waist surrounding direction are secured in the vicinities of transversely opposite side edges of the waist regions to the chassis while middle portions of the elastic members in the waist surrounding direction are not secured to the corresponding portions of the chassis.Type: GrantFiled: December 9, 2003Date of Patent: July 20, 2010Assignee: Uni-Charm Co., Ltd.Inventor: Toshifumi Otsubo
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Patent number: 7744577Abstract: A disposable pull-on wearing article has its waist region divided into a front section and a rear section and connector sheets 21 adapted to connect these two sections together. Each of the connector sheets has joint zones to be joined to the front section and the rear section, respectively, and a non-joint zone interposed between the joint zones so as to define a tear-apart line extending in vertical direction along which the article is torn apart. The non-joint zone has a tensile strength of at least 8N in the waist-surrounding direction and a tear strength in a range of 0.1 to 12N also in the waist-surrounding direction.Type: GrantFiled: June 14, 2006Date of Patent: June 29, 2010Assignee: Uni-Charm CorporationInventors: Toshifumi Otsubo, Naoto Ohashi, Yusuke Kawakami, Makoto Ichikawa
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Patent number: 7722734Abstract: A sheet piece is folded along a first center line thereof to define a first half and a second half. End edges of these two halves are bonded to each other at their middles. The folded sheet piece is placed upon a crotch region of a basic structure, with the first center line being brought close to a second center line of the basic structure. Lateral edges of the first half are bonded to the crotch region. The basic structure is folded back along the second center line. The inner surface of the basic structure is bonded to the outer surface of the lateral edges of the second half. Regions of the first and second halves defined between the respective lateral edges are spaced from the crotch region. Front and rear waist regions of the basic structure are bonded along the lateral edges to obtain a pants-shape diaper.Type: GrantFiled: October 24, 2007Date of Patent: May 25, 2010Assignee: Uni-Charm CorporationInventor: Toshifumi Otsubo
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Patent number: 7722587Abstract: A disposable diaper has a chassis and a body fluid absorbent structure. The body fluid absorbent structure comprises a panel of body fluid absorbent material and a liquid-pervious sheet covering a surface of the panel facing the wearer's skin. The diaper is provided with a plurality of crossover members extending across the body fluid absorbent structure and facing the liquid-pervious sheet. The crossover member has its transversely opposite end portions bonded to the diaper in the vicinity of the side edge portions of the body fluid absorbent structure and its intermediate portion defined between the side end portions not bonded to the liquid-pervious sheet.Type: GrantFiled: August 13, 2004Date of Patent: May 25, 2010Assignee: Uni-Charm CorporationInventors: Sachiyo Suzuki, Toshifumi Otsubo
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Patent number: 7717896Abstract: A disposable pull-on wearing article has its waist region divided into a front section and a rear section and connector sheet strips adapted to connect these two sections together. Each of the connector sheet strips has zones to be joined to the front sections and a non-joint zone interposed between the zones to be joined to the front and rear sections and adapted to be easily torn apart in the vertical direction of the article. The front and rear sections respectively have ears lying on the outer side. These ears have respective inner surface releasably joined to each other by a pressure-sensitive adhesive.Type: GrantFiled: June 13, 2006Date of Patent: May 18, 2010Assignee: Uni-Charm CorporationInventors: Toshifumi Otsubo, Naoto Ohashi, Yusuke Kawakami, Makoto Ichikawa
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Publication number: 20100078120Abstract: A manufacturing method of an absorbent article according to the present invention includes the steps of: splitting an elastic member bundle having line-splitting strength within the predetermined range into multiple first elastic members by feeding the elastic member bundle in an MD via a line splitter, the line-splitting strength measured by a predetermined measuring method, applying an adhesive at least on a predetermined curved line on a web continuously conveyed; and placing the multiple elastic members thus split on the web while swinging the elastic members in a CD. The elastic member bundle is formed by splitting a single original elastic member with a slit into the multiple elastic members, and bundling and pressurizing the multiple elastic members.Type: ApplicationFiled: February 20, 2009Publication date: April 1, 2010Applicant: UNI-CHARM CORPORATIONInventor: Toshifumi Otsubo
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Publication number: 20100038018Abstract: The present invention provides a method of continuously making a disposable pants-type diaper having a body waste receiving pocket adapted to be easily aligned with the wearer's external genitals and anus. A first web comprising chassis continuously arranged in a transverse direction thereof is continuously fed in a machine direction MD wherein each of the chassis comprises a crotch region, a front waist region and a rear waist region. A second web comprising sheet members continuously arranged in the transverse direction thereof is continuously fed onto the first web wherein each of the sheet members is destined to be attached to the inner surface of the associated chassis in the crotch region thereof and thereby to form a body waste receiving pocket. The second web is folded back onto itself in a cross direction CD and locally bonded to each other along opposite edges thereof at regular pitches each corresponding to a width of the individual chassis to obtain a third web having seal regions.Type: ApplicationFiled: November 16, 2007Publication date: February 18, 2010Applicant: UNI-CHARM CORPORATIONInventor: Toshifumi Otsubo
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Publication number: 20100018637Abstract: The present invention provides a method of continuously making a disposable pants-type diaper having a body waste receiving pocket adapted to be easily aligned with the wearer's external genitals and anus. A first web comprising chassis continuously arranged in a transverse direction thereof is continuously fed in a machine direction MD wherein each of the chassis comprises a crotch region, a front waist region and a rear waist region. A second web comprising sheet members continuously arranged in the transverse direction thereof is continuously fed onto the first web wherein each of the sheet members is destined to be attached to the inner surface of the associated chassis in the crotch region thereof and thereby to form a body waste receiving pocket. The first web and the second web are bonded to each other along regions destined to define opposite side edges of the crotch region in the chassis to obtain first composite web.Type: ApplicationFiled: November 16, 2007Publication date: January 28, 2010Applicant: UNI-CHARM CORPORATIONInventor: Toshifumi Otsubo
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Patent number: 7594907Abstract: A pants-type diaper includes a crotch region which is provided on the inner surface in a zone put aside toward a front waist region and in a zone put aside toward a rear waist region with belt-like members, respectively, both extending across a body fluid absorbent structure. Each of the belt-like members has distal ends bonded to leakage barrier means formed along side edges of the body fluid absorbent structure. Intermediate segment extending between the distal ends is free from the inner surface of the crotch region. The belt-like members are integrated with each other only along respective middle segments thereof as viewed in a transverse direction.Type: GrantFiled: October 25, 2007Date of Patent: September 29, 2009Assignee: Uni-Charm CorporationInventor: Toshifumi Otsubo
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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: 7582077Abstract: A wearing article includes a chassis having front and rear waist regions, a fastener mechanism adapted to fasten transversely opposite side edges of the chassis, and an elastic adjusting element adapted to stretch or contract at least one of the front and rear waist regions in a transverse direction. The fastener mechanism includes flat and rigid male fastener panels each having a proximal end secured to the side edge of the rear waist region, and female fastener members located on the side edges of the front waist region so that the male fastener panels can be releasably engaged with the respective female fastener members.Type: GrantFiled: March 30, 2005Date of Patent: September 1, 2009Assignee: Uni-Charm CorporationInventor: Toshifumi Otsubo
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Patent number: 7547299Abstract: A disposable wearing article has front and rear waist regions, a crotch region extending between these waist regions and a pair of engagement members respectively to inner surfaces of transversely opposite side edge portions of the rear waist region. In the article, each of the engagement members has a fixed portion permanently bonded to the associated side portion of the rear waist region and a first free portion extending inward from the fixed portion in a transverse direction of the rear waist region wherein the first free portion is formed on its inner surface with a fastening means so that the side edge portions of the rear waist region may be releasably engaged with inner or outer surface of the front waist region by means of the engagement members.Type: GrantFiled: August 18, 2004Date of Patent: June 16, 2009Assignee: Uni-Charm CorporationInventors: Toshifumi Otsubo, Tomoko Sugita
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Patent number: 7530971Abstract: A disposable pull-on wearing article includes front and rear waist regions, a crotch region extending between the waist regions, a chassis and an absorbent panel. The article has first and second tuckable side zones folded along first and second imaginary tuckable guide lines and tucked the article.Type: GrantFiled: August 31, 2006Date of Patent: May 12, 2009Assignee: Uni-Charm CorporationInventors: Toshifumi Otsubo, Shunsuke Takino
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Patent number: 7524314Abstract: The wearing article is provided with a fastening system adapted to releasably connecting front and rear waist regions defining a waist-opening. The fastening system includes engaging fasteners located on transversely opposite side edges of the rear waist region and landing fasteners located on transversely opposite side zones of the front waist region. Each of the engaging fasteners has an insert and an engaging portion while each of the landing fasteners has a pocket adapted to receive the insert and a landing portion which is formed on the outer surface of the pocket and with which the engaging portion is releasably engaged.Type: GrantFiled: March 29, 2005Date of Patent: April 28, 2009Assignee: Uni-Charm CorporationInventor: Toshifumi Otsubo
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Publication number: 20090105677Abstract: In a disposable absorbent article such as a disposable diaper including fastener elements by means of which front and rear waist regions are releasably connected with each other, the fastener elements are not affected by contraction of elastic members arranged in these waist regions. In this absorbent article, the front waist region and/or the rear waist region is or are divided into an elasticized intermediate zone provided with the elastic members and inelasticized transversely opposite side edge zones contigious to transversely opposite side edges of the intermediate zone. The fastener elements are provided in the transversely opposite side edge zones.Type: ApplicationFiled: December 22, 2008Publication date: April 23, 2009Applicant: UNI-CHARM CORPORATIONInventors: Toshifumi OTSUBO, Hiroki YAMAMOTO, Tomoko SUGITO
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Publication number: 20090095403Abstract: In a disposable absorbent article such as a disposable diaper including fastener elements by means of which front and rear waist regions are releasably connected with each other, the fastener elements are not affected by contraction of elastic members arranged in these waist regions. In this absorbent article, the front waist region and/or the rear waist region is or are divided into an elasticized intermediate zone provided with the elastic members and inelasticized transversely opposite side edge zones contigious to transversely opposite side edges of the intermediate zone. The fastener elements are provided in the transversely opposite side edge zones.Type: ApplicationFiled: December 19, 2008Publication date: April 16, 2009Applicant: UNI-CHARM CORPORARTIONInventors: Toshifumi OTSUBO, Hiroki YAMAMOTO, Tomoko SUGITO
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Patent number: 7503912Abstract: A disposable wearing article includes elastic members interposed between inner and outer sheets and attached in a stretched state to these inner and outer sheets. A base sheet constituting a component of a hook part of a mechanical fastener is oriented to extend across the elastic members and attached to the outer sheet. Of the outer sheet, a region in which the outer sheet is attached to the base sheet and peripheral regions having dimensions m, n as measured from side edges of the base sheet in a width direction of the article are attached neither to the elastic members nor to the inner sheet. The outer sheet is attached to the inner sheet in regions defined outside those peripheral regions.Type: GrantFiled: August 18, 2004Date of Patent: March 17, 2009Assignee: Uni-Charm CorporationInventors: Toshifumi Otsubo, Tomoko Sugito