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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Publication number: 20040210204Abstract: 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: ApplicationFiled: April 15, 2004Publication date: October 21, 2004Inventors: Takaaki Shimada, Shunsuke Takino, Takashi Tsukayoshi
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Publication number: 20040186453Abstract: A pants-type disposable wearing article comprises a liquid-impervious base sheet and a liquid-absorbent panel and has a waist-hole and a pair of leg-holes. Each of the second elastic members has transversely opposite the fixed portions secured to the waist lateral zones in vicinities of the edges thereof and to the crotch lateral zones in vicinities of the edges thereof and a free portion extending in the transverse direction between the opposite fixed portions across the panel and secured neither to the base sheet nor to the panel. In the crotch lateral zones and in the lower areas of the respective waist lateral zones placed aside toward the crotch region, the free portions of the respective waist-surrounding second elastic members three-dimensionally intersect the leg-surrounding elastic members. At the crossover points of the second elastic members and the leg-surrounding elastic members, these elastic members are not secured one to another, i.e., let free one from another.Type: ApplicationFiled: January 27, 2004Publication date: September 23, 2004Inventors: Takaaki Shimada, Takako Uosawa, Naoko Takada
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Patent number: 6767343Abstract: A disposable pull-on diaper that includes elastic members attached under tension to peripheral edge portions of leg-openings and a pair of leak-barrier cuffs provided in the vicinity of transversely opposite side edges of a core. The elastic members associated with the leg-openings include first elastic members extending along front peripheral edge portions of the leg-openings and second elastic members extending along rear peripheral edge portions of the leg-openings and, in a crotch region, the free side edge portions of the leak-barrier cuffs extend inward beyond the side edges of said core and are folded back along substantially middle folding zones thereof outward beyond the side edges of the core and wherein the free side edge portions are bonded, in the vicinity of the folding zones, to the outer surface of the topsheet in the upper zone of the core.Type: GrantFiled: August 30, 2001Date of Patent: July 27, 2004Assignee: Uni-Charm CorporationInventors: Takaaki Shimada, Kenji Nakamura
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Patent number: 6726669Abstract: A disposable pull-on garment includes front and rear waist-encircling regions each having first elasticized zones and a second elasticized zone extending in a waist-encircling direction. Auxiliary elastic members include plural lines of first auxiliary elastic members extending in the waist-encircling direction in the first elasticized zones, and plural lines of second auxiliary elastic members extending in the waist-encircling direction in the second elasticized zones. A tensile stress of the first auxiliary elastic members is greater than that of the second auxiliary elastic members. A tensile stress of the first elasticized zones is greater than that of the second elasticized zone.Type: GrantFiled: October 12, 2001Date of Patent: April 27, 2004Assignee: Uni-Charm CorporationInventors: Takaaki Shimada, Kenji Nakamura
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Patent number: 6710222Abstract: A disposable undergarment having a liquid-absorbent panel that includes a body fluid absorbing/holding layer formed with a plurality of depressions each extending in the thickness direction thereof and a nonwoven fabric layer placed upon upper surface of the absorbing/holding layer. Heat-sealable fibers contained in the absorbing/holding layer are heat-sealed with the nonwoven fabric layer over contacting surfaces of these absorbing/holding layer and the nonwoven fabric layer. Furthermore, the nonwoven fabric layer is partially engaged in the depressions of the absorbing/holding layer so that the heat-sealable synthetic fibers contained in the absorbing/holding layer are heat-sealed with the nonwoven fabric layer also over contacting surfaces of these two layers in the respective depressions.Type: GrantFiled: June 13, 2001Date of Patent: March 23, 2004Assignee: Uni-Charm CorporationInventors: Takaaki Shimada, Kenji Nakamura, Seiji Suzuki
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Patent number: 6676647Abstract: The disposable pull-on undergarment that has first and second waist regions and a crotch region extending between these two waist regions. The waist regions are connected with each other in bonding zones extending along transversely opposite side edge portions thereof so as to define a waist-opening and a pair of leg-openings. First elastic members are bonded under tension to peripheral edge of the waist-opening and second elastic members are bonded under tension to peripheral edges of the leg-openings so that respective opposite ends of the first elastic members are positioned and fixed at first zones defined immediately inside the bonding zones in a circumferential direction of the waist-opening and respective opposite ends of the second elastic members are positioned and fixed at second zones defined immediately inside the bonding zones in a circumferential direction Y of the leg-openings.Type: GrantFiled: May 24, 2001Date of Patent: January 13, 2004Assignee: Uni-Charm CorporationInventors: Takaaki Shimada, Seiji Suzuki, Nariaki Shimoe
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Patent number: 6638262Abstract: A disposable wearing article includes a substantially liquid-impervious leak-barrier cuff which has a fixed end portion lying in the vicinity of a longitudinal end portion of an article, a free end portion extending from the fixed end portion toward a crotch region and fixed lateral end portions lying on transversely opposite side edge portions of the article. The free end portion is normally biased to rise on a topsheet and locally bonded to the article in retaining zones.Type: GrantFiled: October 15, 2001Date of Patent: October 28, 2003Assignee: Uni-Charm CorporationInventors: Seiji Suzuki, Takaaki Shimada
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Patent number: 6629966Abstract: A disposable pull-on diaper that includes a pair of tape fasteners which are adapted to hold the diaper in a rolled-up state. The tape fasteners are provided at transversely opposite side edges of a rear waist region so as to extend along the side edges in a longitudinal direction. Each of the tape fasteners has an upper end portion lying adjacent a waist-opening and a lower end portion lying adjacent an associated leg-opening. The upper end portions of the tape fasteners are bonded to the diaper by bonding zones which extend obliquely inward in a waist-surrounding direction from the transversely opposite side edges of the rear waist region toward the lower end portions.Type: GrantFiled: August 24, 2001Date of Patent: October 7, 2003Assignee: Uni-Charm Corp.Inventors: Takaaki Shimada, Seiji Suzuki
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Patent number: 6572575Abstract: There is disclosed a disposable diaper including: an outer sheet facing outward; a liquid-permeable inner sheet facing a liquid receiving side; and an absorbent layer interposed between the outer sheet and the inner sheet, to form a front face portion to be applied to the abdomen of a wearer, an intermediate portion to be applied to the crotch, and a back face portion to be applied to the back side. A pattern sheet having a pattern and an area smaller than an area of the diaper, as viewed from the back face or the front face of the diaper, is adhered to the inner side of the outer sheet. The outer sheet allows the pattern to be observed therethrough.Type: GrantFiled: August 17, 2000Date of Patent: June 3, 2003Assignee: Uni-Charm CorporationInventors: Takaaki Shimada, Toru Sasaki, Hiroki Yamamoto
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Patent number: 6503235Abstract: A disposable pull-on undergarment having front and rear waist regions bonded together along longitudinally extending bonding zones to define a waist-hole and a pair of leg-holes. The respective bonding zones have an upper end lying most adjacent the waist-hole and a lower end lying most adjacent the leg-holes and extend from the upper ends toward the lower ends so that these bonding zones approach a longitudinal center line X of the undergarment.Type: GrantFiled: July 9, 2001Date of Patent: January 7, 2003Assignee: Uni-Charm CorporationInventors: Seiji Suzuki, Takaaki Shimada
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Patent number: 6491675Abstract: A disposable pull-on diaper includes a liquid-pervious topsheet, a liquid-impervious backsheet and a liquid-absorbent core disposed therebetween. The diaper has a waist-hole and a pair of leg-holes. The diaper is provided on one of a front half or a rear half thereof with at least one elastically stretchable fastening member transversely extending across a longitudinal center line of the diaper, and a hook member which lies on the longitudinal center line to catch the fastening member. The fastening member has transversely opposite end portions secured to the diaper, and a transversely intermediate portion exposed on an outer surface of the backsheet. After use, the used diaper is rolled-up with an outer peripheral surface thereof surrounded by the intermediate portion, and the intermediate portion is caught by the hook to secure the used diaper in the rolled-up state.Type: GrantFiled: October 12, 2000Date of Patent: December 10, 2002Assignee: Uni-Charm CorporationInventors: Takaaki Shimada, Toshio Inoue, Seiji Suzuki, Kenji Nakamura
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Patent number: 6475205Abstract: A pull-on disposable diaper that is provided, in a vicinity of transversely opposite side edges in a rear waist region, with fastening tape strips. The fastening tape strips are adapted to hold the diaper in its rolled up state for disposal after the diaper has been used. Each of the tape strips includes a first portion extending longitudinally of the diaper parallel to the associated one of transversely opposite side edges and a second portion branched from the first portion that extends longitudinally of the diaper. Longitudinally opposite end regions of the first portion are bonded to edges of waist- and leg-openings. The second portion includes an anchoring zone adapted to be separably anchored on the outer peripheral surface of the rolled up diaper.Type: GrantFiled: January 30, 2001Date of Patent: November 5, 2002Assignee: Uni-Charm CorporationInventors: Takaaki Shimada, Seiji Suzuki
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Patent number: 6454747Abstract: A disposable diaper that includes an absorbent unit and a breathable sweat-absorbent sheet. An end flap is formed in a rear waist region of the absorbent unit and is arranged to be breathable. The sweat-absorbent sheet is bonded to the inner surface of the end flap. The diaper thus constructed is breathable and sweat absorbable in the waist region of the absorbent unit.Type: GrantFiled: December 27, 1999Date of Patent: September 24, 2002Assignee: Uni-Charm CorporationInventors: Takaaki Shimada, Seiji Suzuki
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Publication number: 20020045872Abstract: 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: ApplicationFiled: October 11, 2001Publication date: April 18, 2002Inventors: Takaaki Shimada, Kenji Nakamura
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Publication number: 20020045877Abstract: A disposable pull-on garment includes each of front and rear waist-encircling regions which has a first elasticized zone and a second elasticized zone extending in a waist-encircling direction. Auxiliary elastic members include plural lines of first auxiliary elastic members extending in the waist-encircling direction in the first elasticized zone, and plural lines of second auxiliary elastic members extending in the waist-encircling direction in the second elasticized zone. A tensile stress of the first auxiliary elastic members is greater that that of the second auxiliary elastic member. A tensile stress of the first elasticized zones is greater than that of the second elasticized zone.Type: ApplicationFiled: October 12, 2001Publication date: April 18, 2002Inventors: Takaaki Shimada, Kenji Nakamura
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Publication number: 20020045876Abstract: A disposable wearing article includes a substantially liquid-impervious leak-barrier cuff which has a fixed end portion lying in the vicinity of a longitudinal end portion of an article, a free end portion extending from the fixed end portion toward a crotch region and fixed lateral end portions lying on transversely opposite side edge portions of the article. The free end portion is normally biased to rise on a topsheet and locally bonded to the article in retaining zones.Type: ApplicationFiled: October 15, 2001Publication date: April 18, 2002Inventors: Seiji Suzuki, Takaaki Shimada
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Publication number: 20020029028Abstract: A disposable pull-on diaper includes elastic members attached under tension to peripheral edge portions of leg-openings and a pair of leak-barrier cuffs provided in the vicinity of transversely opposite side edges of a core. The elastic members associated with the leg-openings include first elastic members extending along front peripheral edge portions of the leg-openings and second elastic members extending along rear peripheral edge portions of the leg-openings and, in a crotch region, the free side edge portions of the leak-barrier cuffs extend inward beyond the side edges of said core and are folded back along substantially middle folding zones thereof outward beyond the side edges of the core and wherein the free side edge portions are bonded, in the vicinity of the folding zones, to the outer surface of the topsheet in the upper zone of the core.Type: ApplicationFiled: August 30, 2001Publication date: March 7, 2002Inventors: Takaaki Shimada, Kenji Nakamura
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Publication number: 20020026172Abstract: A disposable pull-on diaper includes a pair of tape fasteners which are adapted to hold the diaper in rolled up state, the tape fasteners are provided at transversely opposite side edges of a rear waist region so as to extend along the side edges in a longitudinal direction, each of the tape fasteners has an upper end portion lying adjacent a waist-opening and a lower end portion lying adjacent each of leg-openings, and the upper end portions are bonded to the diaper by means of bonding zones which obliquely extend inward in a waist-surrounding direction from the transversely opposite side edges of the rear waist region toward the lower end portions.Type: ApplicationFiled: August 24, 2001Publication date: February 28, 2002Inventors: Takaaki Shimada, Seiji Suzuki
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Publication number: 20020010450Abstract: A disposable pull-on undergarment 1 having front and rear waist regions bonded together along longitudinally bonding zones to define a waist-hole and a pair of leg-holes. The respective bonding zones have an upper end lying most adjacent the waist-hole and a lower end lying most adjacent the leg-holes and extend from the upper ends toward the lower ends so that these bonding zones get nearer to a longitudinal center line X.Type: ApplicationFiled: July 9, 2001Publication date: January 24, 2002Inventors: Seiji Suzuki, Takaaki Shimada
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Publication number: 20020004655Abstract: 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: ApplicationFiled: January 30, 2001Publication date: January 10, 2002Inventors: Takaaki Shimada, Seiji Suzuki