Patents by Inventor Nobuhiro Kurata
Nobuhiro Kurata 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: 20050288642Abstract: The topsheet of a absorbent article improved dry feeling, and an evaluation/selection method for a topsheet improved in dry feeling. The liquid-permeable topsheet of a absorbent article, characterized in that a contact cool feeling during a wet condition as measured in a maximum heat transfer quantity (q-max value) is less than 1.1 kw/m2 on the side contacting the skin oft wearer of the topsheet, and a q-max value on the side contacting the absorbent article is larger than a q-max value on the side contacting the skin of a wearer with the difference of at least 0.5 kw/cm2. An evaluation/selection method for the topsheet of a absorbent article excellent in dry feeling using a q-max value during a wet condition as an index.Type: ApplicationFiled: July 24, 2003Publication date: December 29, 2005Applicant: UNI-CHARM CORPORATIONInventors: Yuri Kurata, Junko Sato, Nobuhiro Kurata, Yozo Yamada, Takayuki Hisanaka, Sonoko Ishimaru, Hisao Nishinaka
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Patent number: 6723430Abstract: Provided is a water-decomposable absorbent article including a water-decomposable back layer, a water-decomposable and liquid-pervious surface layer, and a water-decomposable absorbent layer sandwiched between the back layer and the surface layer. The absorbent layer is formed of at least one composite sheet of a water-soluble or water-swellable polymer layer and a water-decomposable fibrous layer, of which the uppermost layer adjacent to the surface layer is the water-decomposable fibrous layer.Type: GrantFiled: December 21, 2000Date of Patent: April 20, 2004Assignee: Uni-Charm CorporationInventors: Nobuhiro Kurata, Mitsuhiro Wada, Sachiyo Suzuki
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Patent number: 6653521Abstract: Provided is an absorbent article including a liquid-permeable top sheet facing the liquid-receiving side, a hydrophobic sheet and a liquid-absorbing layer located between the top sheet and the hydrophobic sheet. Furthermore, a deodorant is disposed on the outer side of the hydrophobic sheet.Type: GrantFiled: September 29, 2000Date of Patent: November 25, 2003Assignee: Uni-Charm CorporationInventors: Yuri Kurata, Nobuhiro Kurata
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Patent number: 6642428Abstract: Provided is a water-decomposable absorbent article including a water-decomposable back sheet, a water-decomposable absorbent layer, and a surface member covering the absorbent layer. The surface member has a plurality of water-retentive water-decomposable sheets laminated and bonded to each other by integration means for permitting to dissociate the water-decomposable sheets from each other when wetted.Type: GrantFiled: September 11, 2000Date of Patent: November 4, 2003Assignee: Uni-Charm CorporationInventors: Nobuhiro Kurata, Mitsuhiro Wada, Megumi Tokumoto
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Patent number: 6593510Abstract: Provided is a water-decomposable absorbent article including a water-decomposable back layer, a water-decomposable and liquid-pervious surface layer, and a water-decomposable absorbent layer sandwiched between the back layer and the surface layer. The absorbent article includes an outer peripheral region being formed in a predetermined width spaced from a peripheral edge of the absorbent article, and an inner region located inside the outer peripheral region. The absorbent layer and the back layer, and/or the absorbent layer and the surface layer are bonded to each other with a water-soluble or water-swellable adhesive therebetween in the inner region, and the interlayer bonding strength of the layers bonded with the adhesive in the inner region is higher than the interlayer bonding strength of the layers in the outer peripheral region, both in wet and in dry.Type: GrantFiled: December 22, 2000Date of Patent: July 15, 2003Assignee: Uni-Charm CorporationInventors: Nobuhiro Kurata, Mitsuhiro Wada, Yuka Miyazaki
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Publication number: 20030105440Abstract: Provided is a water-decomposable absorbent article including a water-decomposable back layer, a water-decomposable and liquid-pervious surface layer, and a water-decomposable absorbent layer sandwiched between the back layer and the surface layer and having a smaller planar dimension than the back layer and the surface layer. The absorbent article includes an inner region in which the absorbent layer is present, and an outer peripheral region having the back layer and the surface layer bonded to each other without interposing the absorbent layer therebetween and being formed in a predetermined width spaced from a peripheral edge of the absorbent article. A thermoplastic water-soluble adhesive is applied in a strip shape between the back layer and the surface layer in a predetermined width along the peripheral edge in the outer peripheral region. The back layer and the surface layer are heat-sealed with the thermoplastic water-soluble adhesive disposed therebetween in the outer peripheral region.Type: ApplicationFiled: December 30, 2002Publication date: June 5, 2003Applicant: UNI-CHARM CORPORATIONInventors: Nobuhiro Kurata, Mitsuhiro Wada, Megumi Tokumoto
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Patent number: 6531642Abstract: Provided is a water-decomposable absorbent article including a water-decomposable back layer, a water-decomposable and liquid-pervious surface layer, and a water-decomposable absorbent layer sandwiched between the back layer and the surface layer and having a smaller planar dimension than the back layer and the surface layer. The absorbent article includes an inner region in which the absorbent layer is present, and an outer peripheral region having the back layer and the surface layer bonded to each other without interposing the absorbent layer therebetween and being formed in a predetermined width spaced from a peripheral edge of the absorbent article. A thermoplastic water-soluble adhesive is applied in a strip shape between the back layer and the surface layer in a predetermined width along the peripheral edge in the outer peripheral region. The back layer and the surface layer are heat-sealed with the thermoplastic water-soluble adhesive disposed therebetween in the outer peripheral region.Type: GrantFiled: December 21, 2000Date of Patent: March 11, 2003Assignee: Uni-Charm CorporationInventors: Nobuhiro Kurata, Mitsuhiro Wada, Megumi Tokumoto
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Patent number: 6443931Abstract: An absorbent article such as a panty liner for disposal of body fluids discharged thereon includes a body facing side, an undergarment facing side and an absorbent core disposed therebetween, the undergarment facing side including a thermoplastic synthetic fiber layer placed against a bottom surface of the core and having a density lower than that of the core, a synthetic resin layer having a density higher than that of the fiber layer and a first thermoplastic synthetic fiber having a density lower than that of the resin layer, and the synthetic fiber layer being coated with adhesive agent to an undergarment.Type: GrantFiled: January 21, 2000Date of Patent: September 3, 2002Assignee: Uni-Charm CorporationInventors: Nobuhiro Kurata, Mitsuhiro Wada
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Patent number: 6432095Abstract: Provided is a water-decomposable absorbent article including, a water-decomposable back sheet containing water-dispersible fibers, a water-decomposable absorbent layer, and a water-decomposable surface member for covering the absorbent layer. The outer surface of the back sheet is provided with a plurality of adhesive spots for securing the absorbent article to an external support. The adhesive spots are arranged at intervals both in a longitudinal direction and in a transverse direction. The distance between the neighboring adhesive spots is longer than the maximum fiber length of the fibers constituting the back sheet.Type: GrantFiled: November 7, 2000Date of Patent: August 13, 2002Assignee: Uni-Charm CorporationInventors: Mitsuhiro Wada, Nobuhiro Kurata, Megumi Tokumoto
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Publication number: 20010014795Abstract: Provided is a water-decomposable absorbent article including a water-decomposable back layer, a water-decomposable and liquid-pervious surface layer, and a water-decomposable absorbent layer sandwiched between the back layer and the surface layer and having a smaller planar dimension than the back layer and the surface layer. The absorbent article includes an inner region in which the absorbent layer is present, and an outer peripheral region having the back layer and the surface layer bonded to each other without interposing the absorbent layer therebetween and being formed in a predetermined width spaced from a peripheral edge of the absorbent article. A thermoplastic water-soluble adhesive is applied in a strip shape between the back layer and the surface layer in a predetermined width along the peripheral edge in the outer peripheral region. The back layer and the surface layer are heat-sealed with the thermoplastic water-soluble adhesive disposed therebetween in the outer peripheral region.Type: ApplicationFiled: December 21, 2000Publication date: August 16, 2001Applicant: UNI-CHARM CORPORATIONInventors: Nobuhiro Kurata, Mitsuhiro Wada, Megumi Tokumoto
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Publication number: 20010014566Abstract: Provided is a water-decomposable absorbent article including a water-decomposable back layer, a water-decomposable and liquid-pervious surface layer, and a water-decomposable absorbent layer sandwiched between the back layer and the surface layer. The absorbent layer is formed of at least one composite sheet of a water-soluble or water-swellable polymer layer and a water-decomposable fibrous layer, of which the uppermost layer adjacent to the surface layer is the water-decomposable fibrous layer.Type: ApplicationFiled: December 21, 2000Publication date: August 16, 2001Applicant: UNI-CHARM CORPORATIONInventors: Nobuhiro Kurata, Mitsuhiro Wada, Sachiyo Suzuki
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Publication number: 20010008964Abstract: Provided is a water-decomposable absorbent article including a water-decomposable back layer, a water-decomposable and liquid-pervious surface layer, and a water-decomposable absorbent layer sandwiched between the back layer and the surface layer. The absorbent article includes an outer peripheral region being formed in a predetermined width spaced from a peripheral edge of the absorbent article, and an inner region located inside the outer peripheral region. The absorbent layer and the back layer, and/or the absorbent layer and the surface layer are bonded to each other with a water-soluble or water-swellable adhesive therebetween in the inner region, and the interlayer bonding strength of the layers bonded with the adhesive in the inner region is higher than the interlayer bonding strength of the layers in the outer peripheral region, both in wet and in dry.Type: ApplicationFiled: December 22, 2000Publication date: July 19, 2001Applicant: UNI-CHARM CORPORATIONInventors: Nobuhiro Kurata, Mitsuhiro Wada, Yuka Miyazaki