Patents by Inventor Ryota KURAMAE
Ryota KURAMAE 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: 11185450Abstract: A diaper (10) includes an absorbent assembly (20) including a topsheet (21), a backsheet (22), and an absorbent core (24), and has an article longitudinal direction (X) and an article lateral direction (Y). The absorbent core (24) is formed of a sheet-like article (1) including a plurality of absorbent units (4), each including a long base portion (2) and water-absorbent polymer particles (3). The sheet-like article (1) includes a plurality of unit portions arranged in the longitudinal direction (x1 direction), each unit portion including a plurality of the absorbent units (4) arranged side by side in the lateral direction (y1 direction). The sheet-like article (1) includes a pair of longitudinal joined regions (41, 41), a pair of lateral joined regions (42, 42), and intermediate lateral joined regions (43, 43).Type: GrantFiled: December 6, 2017Date of Patent: November 30, 2021Assignee: KAO CORPORATIONInventors: Aiko Onda, Ryota Kuramae
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Patent number: 10912683Abstract: A sheet-like article (1) for an absorbent article of the invention includes a plurality of absorbent units (4), each including: a long base portion (2); and water-absorbent polymer particles (3) that are fixed to a surface of first side of the long base portion (2). In the sheet-like article (1), the absorbent units (4) are arranged such that the longitudinal direction thereof is oriented in one direction. When the water-absorbent polymer particles (3) absorb a liquid, the water-absorbent polymer particles (3) swell beyond the lateral side edge portions (2s), of the long base portion (2), that extend along the longitudinal direction, and a position, in the thickness direction, of each long base portion is varied from the position thereof before absorbing the liquid.Type: GrantFiled: October 6, 2016Date of Patent: February 9, 2021Assignee: KAO CORPORATIONInventors: Kenji Kobayashi, Bin Latif Muhamad Nor Salehuddin, Ryota Kuramae, Aiko Onda
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Patent number: 10858212Abstract: A sheet-like article (1) for an absorbent article of the invention includes a plurality of absorbent units (4), each including a long base portion (2) and water-absorbent polymer particles (3) fixed to a surface of one face of the long base portion (2). In the sheet-like article (1), the absorbent units (4) are arranged such that their longitudinal direction is oriented in one direction. Before the water-absorbent polymer particles (3) absorb a liquid, the water-absorbent polymer particles (3) are located inward of both lateral side edge portions (2s), of the long base portion (2), that extend along the longitudinal direction. When the water-absorbent polymer particles (3) absorb a liquid, the water-absorbent polymer particles (3) swell beyond the lateral side edge portions (2s), of the long base portion (2), that extend along the longitudinal direction, and a position, in the thickness direction, of the long base portion (2) is varied from the position thereof before absorbing the liquid.Type: GrantFiled: October 6, 2016Date of Patent: December 8, 2020Assignee: KAO CORPORATIONInventors: Bin Latif Muhamad Nor Salehuddin, Kenji Kobayashi, Ryota Kuramae, Aiko Onda
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Publication number: 20200315869Abstract: An absorbent member (1) according to the present invention includes: an absorbent sheet (2) that includes a substrate layer (20) and an absorbent layer (21) that includes water-absorbent polymers (P1) that are fixed to one side of the substrate layer (20); and an entangled fiber layer (3). The water-absorbent polymers (P1) of the absorbent layer (21) and the entangled fiber layer (3) are adjacent to each other. The water-absorbent polymers (P1) of the absorbent layer (21) are preferably fixed to one side of the substrate layer (20) using a hot melt adhesive. The absorbent member (1) configured as described above has excellent absorbency and shape stability while being thin.Type: ApplicationFiled: December 29, 2017Publication date: October 8, 2020Applicant: KAO CORPORATIONInventor: Ryota KURAMAE
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Publication number: 20200306108Abstract: An absorbent member (20) includes an absorbent sheet (10) in which absorbent polymer (12) is fixed to a base sheet (11) and a cover sheet (21) covering at least a first surface of the absorbent sheet (10). The absorbent sheet (10) has an absorbent polymer fixing proportion of 40% or more. The absorbent member (20) has high fixing performance of the absorbent polymer (12) to the base sheet (11) and is less likely to suffer from detachment of the absorbent polymer (12) even after liquid absorption. The absorbent polymer (12) is preferably fixed to the base sheet (11) with a base sheet fixing adhesive (13) interposed therebetween. The adhesive (13) is preferably an acrylic, silicone-based or rubber-based adhesive, and is preferably a hot-melt adhesive.Type: ApplicationFiled: December 7, 2017Publication date: October 1, 2020Applicant: Kao CorporationInventor: Ryota KURAMAE
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Publication number: 20190336355Abstract: A diaper (10) includes an absorbent assembly (20) including a topsheet (21), a backsheet (22), and an absorbent core (24), and has an article longitudinal direction (X) and an article lateral direction (Y). The absorbent core (24) is formed of a sheet-like article (1) including a plurality of absorbent units (4), each including a long base portion (2) and water-absorbent polymer particles (3). The sheet-like article (1) includes a plurality of unit portions arranged in the longitudinal direction (x1 direction), each unit portion including a plurality of the absorbent units (4) arranged side by side in the lateral direction (y1 direction). The sheet-like article (1) includes a pair of longitudinal joined regions (41, 41), a pair of lateral joined regions (42, 42), and intermediate lateral joined regions (43, 43).Type: ApplicationFiled: December 6, 2017Publication date: November 7, 2019Applicant: KAO CORPORATIONInventors: Aiko ONDA, Ryota KURAMAE
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Publication number: 20180312362Abstract: A sheet-like article (1) for an absorbent article of the invention includes a plurality of absorbent units (4), each including a long base portion (2) and water-absorbent polymer particles (3) fixed to a surface of one face of the long base portion (2). In the sheet-like article (1), the absorbent units (4) are arranged such that their longitudinal direction is oriented in one direction. Before the water-absorbent polymer particles (3) absorb a liquid, the water-absorbent polymer particles (3) are located inward of both lateral side edge portions (2s), of the long base portion (2), that extend along the longitudinal direction. When the water-absorbent polymer particles (3) absorb a liquid, the water-absorbent polymer particles (3) swell beyond the lateral side edge portions (2s), of the long base portion (2), that extend along the longitudinal direction, and a position, in the thickness direction, of the long base portion (2) is varied from the position thereof before absorbing the liquid.Type: ApplicationFiled: October 6, 2016Publication date: November 1, 2018Applicant: KAO CORPORATIONInventors: Bin Latif MUHAMAD NOR SALEHUDDIN, Kenji KOBAYASHI, Ryota KURAMAE, Aiko ONDA
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Publication number: 20180296403Abstract: A sheet-like article (1) for an absorbent article of the invention includes a plurality of absorbent units (4), each including: a long base portion (2); and water-absorbent polymer particles (3) that are fixed to a surface of first side of the long base portion (2). In the sheet-like article (1), the absorbent units (4) are arranged such that the longitudinal direction thereof is oriented in one direction. When the water-absorbent polymer particles (3) absorb a liquid, the water-absorbent polymer particles (3) swell beyond the lateral side edge portions (2s), of the long base portion (2), that extend along the longitudinal direction, and a position, in the thickness direction, of each long base portion is varied from the position thereof before absorbing the liquid.Type: ApplicationFiled: October 6, 2016Publication date: October 18, 2018Applicant: KAO CORPORATIONInventors: Kenji KOBAYASHI, Bin Latif MUHAMAD NOR SALEHUDDIN, Ryota KURAMAE, Aiko ONDA