Patents Assigned to Livedo Corporation
  • Patent number: 10780000
    Abstract: An absorbent article (1) comprising a top sheet (2), a back sheet (3), an absorbent body (4) disposed therebetween and a second sheet (10) disposed between the top sheet (2) and the absorbent body (4), wherein the second sheet (10) is composed of a laminate having a nonwoven fabric layer (11) and a plastic film layer (12) from the top sheet side and has a plurality of through-holes (13).
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: September 22, 2020
    Assignee: LIVEDO CORPORATION
    Inventor: Emi Amano
  • Publication number: 20200214911
    Abstract: An absorbent article (1) comprising a main body part (2) including a top sheet (3), a back sheet (4) and an absorbent core (5) disposed therebetween, and a hook member (11) provided on a non-skin facing side of the main body part (2), wherein the hook member (11) comprises a base part (12) and a plurality of engagement elements (13) projecting from the base part (12), and the base part (12) of the hook member (11) is bonded to the main body part (2) with an adhesive part (14) disposed in a stripe pattern which extends in an extending direction of the hook member (11).
    Type: Application
    Filed: September 11, 2018
    Publication date: July 9, 2020
    Applicant: LIVEDO CORPORATION
    Inventors: Kenji NAKAOKA, Yuki TAKAHASHI, Masatoshi IKEUCHI
  • Publication number: 20200129657
    Abstract: An objective of the present invention is to provide an absorbent article that prevents wetting of the outer sides or surrounding area of the absorbent article due to condensation formed by water vapor escaped from inside the absorbent article. The present invention provides an absorbent article comprising: an absorbent body composed of at least one absorption layer, wherein the absorbent body includes a hydrophobized adsorbent and (a) a water absorbent resin powder having an absorption speed in a range from 6 seconds to 60 seconds determined by a vortex method.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 30, 2020
    Applicant: LIVEDO CORPORATION
    Inventors: Yoshihisa Ota, Emi Amano
  • Patent number: 10610613
    Abstract: To provide an outer absorbent article having attached thereto an inner absorbent article such as a urine absorption pad to be used, in which the outer absorbent article is configured to prevent inside thereof from wetting due to condensation of vapor escaped from inside an inner absorbent article. [Solution] An outer absorbent article of the present invention is an outer absorbent article having an absorbent body formed from at least one layer of an absorption layer, wherein the absorbent body includes a water-absorbent resin powder satisfying the following requirements of (a) to (d). (a) Specific surface area measured by BET multipoint method: 0.040 m2/g to 0.200 m2/g (b) Vapor blocking ratio: 0% to 0.90% (c) Absorption ratio: 30 g/g to 70 g/g (d) Water retention amount: 45 g/g to 60 g/g.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: April 7, 2020
    Assignee: LIVEDO CORPORATION
    Inventors: Yoshihisa Ota, Emi Amano
  • Patent number: 10556036
    Abstract: An objective of the present invention is to provide an absorbent article that prevents wetting of the outer sides or surrounding area of the absorbent article due to condensation formed by water vapor escaped from inside the absorbent article. The present invention provides an absorbent article comprising: an absorbent body composed of at least one absorption layer, wherein the absorbent body includes a hydrophobized adsorbent and (a) a water absorbent resin powder having an absorption speed in a range from 6 seconds to 60 seconds determined by a vortex method.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: February 11, 2020
    Assignee: LIVEDO CORPORATION
    Inventors: Yoshihisa Ota, Emi Amano
  • Patent number: 10369062
    Abstract: An absorbent article comprising an exterior sheet formed of a nonwoven fabric laminate (1) in which a first nonwoven fabric layer (2), a second nonwoven fabric layer (3) and a third nonwoven fabric layer (4) are laminated from the outer side, wherein the first nonwoven fabric layer (2) and the second nonwoven fabric layer (3) are joined to each other at first joining parts (6), the second nonwoven fabric layer (3) and the third nonwoven fabric layer (4) are joined to each other at second joining parts (7), and a number of the first joining parts is smaller than that of the second joining parts (7).
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: August 6, 2019
    Assignee: LIVEDO CORPORATION
    Inventors: Yuki Takahashi, Kenji Nakaoka
  • Publication number: 20190117481
    Abstract: Absorbent article suppressing occurrence of malodor after use while preventing a rash on a wearer's skin. The absorbent article includes an absorbent body, and a fumaric acid-supported sheet disposed on a skin surface side of the absorbent body. The fumaric acid-supported sheet is a sheet which supports fumaric acid particles having an average particle diameter of 30 ?m or less, and/or a sheet in which at least a part of constituent fibers is coated with fumaric acid. When being in contact with the body fluid or the like, fumaric acid is not immediately but slowly dissolved so that alkalization at the area around fumaric acid can be prevented over a long period of time. In addition, fumaric acid has an action of inhibiting proliferation of putrefactive bacteria and, therefore, can prevent occurrence of malodor from the absorbent article having absorbed the body fluid or the like.
    Type: Application
    Filed: December 14, 2018
    Publication date: April 25, 2019
    Applicant: LIVEDO CORPORATION
    Inventors: Yoshihisa Ota, Motoko Nishida
  • Patent number: 10201461
    Abstract: A disposal diaper (1) improves breathability by laminating a folded portion (46) and an opposing portion (47) to form a first waist circumferential region (407), which is an upper portion of a waist circumferential region (406). A second waist circumferential region (408) below the first waist circumferential region is formed by laminating the folded portion, an end sheet (5), a second exterior sheet (42), and the opposing portion, and a second waist elastic member (444) is joined between the folded portion and the end sheet. The folded portion has a horizontal bending resistance of 80 mm or less. This allows the second waist circumferential region to easily contract. The thickness and strength of the second waist circumferential region increase accordingly, and this makes it possible to reduce damage to an exterior sheet (4) in the waist circumferential region.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: February 12, 2019
    Assignee: LIVEDO CORPORATION
    Inventors: Yuki Takahashi, Emi Amano, Tomohito Uda
  • Patent number: 10195095
    Abstract: Absorbent article suppressing occurrence of malodor after use while preventing a rash on a wearer's skin. The absorbent article includes an absorbent body, and a fumaric acid-supported sheet disposed on a skin surface side of the absorbent body. The fumaric acid-supported sheet is a sheet which supports fumaric acid particles having an average particle diameter of 30 ?m or less, and/or a sheet in which at least a part of constituent fibers is coated with fumaric acid. When being in contact with the body fluid or the like, fumaric acid is not immediately but slowly dissolved so that alkalization at the area around fumaric acid can be prevented over a long period of time. In addition, fumaric acid has an action of inhibiting proliferation of putrefactive bacteria and, therefore, can prevent occurrence of malodor from the absorbent article having absorbed the body fluid or the like.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: February 5, 2019
    Assignee: LIVEDO CORPORATION
    Inventors: Yoshihisa Ota, Motoko Nishida
  • Patent number: 10188561
    Abstract: An absorbent article comprising an exterior sheet formed of a nonwoven fabric laminate (1) in which a first nonwoven fabric layer (2), a second nonwoven fabric layer (3) and a third nonwoven fabric layer (4) are laminated from the outer side, wherein the first nonwoven fabric layer (2), the second nonwoven fabric layer (3) and the third nonwoven fabric layer (4) are joined to each other at a first joining part (6) by heat-embossing, and the second nonwoven fabric layer (3) and the third nonwoven fabric layer (4) are further joined to each other at a second joining part (7) by heat-embossing.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: January 29, 2019
    Assignee: LIVEDO CORPORATION
    Inventors: Yuki Takahashi, Kenji Nakaoka
  • Publication number: 20190008704
    Abstract: An absorbent article comprising an exterior sheet formed of a nonwoven fabric laminate (1) in which a first nonwoven fabric layer (2), a second nonwoven fabric layer (3) and a third nonwoven fabric layer (4) are laminated from the outer side, wherein the first nonwoven fabric layer (2), the second nonwoven fabric layer (3) and the third nonwoven fabric layer (4) are joined to each other at a first joining part (6) by heat-embossing, and the second nonwoven fabric layer (3) and the third nonwoven fabric layer (4) are further joined to each other at a second joining part (7) by heat-embossing.
    Type: Application
    Filed: September 6, 2018
    Publication date: January 10, 2019
    Applicant: LIVEDO CORPORATION
    Inventors: Yuki TAKAHASHI, Kenji NAKAOKA
  • Publication number: 20180344542
    Abstract: In an absorbent product (1), a first absorbent sheet (22) is disposed between a top sheet (21) and a back sheet (23). A second absorbent sheet (22a) is disposed between the first absorbent sheet (22) and the back sheet (23). The first absorbent sheet (22) includes a first upper sheet (221), a first highly absorbent material (222), and a first lower sheet (223). The first absorbent sheet (22) extends in the longitudinal direction beyond the longitudinal edges of the second absorbent sheet (22a) on both longitudinal sides. On each longitudinal side, an extension (224) of the first absorbent sheet (22) beyond the second absorbent sheet (22a) includes a back-sheet contact region (225) that is spaced in the longitudinal direction from the longitudinal edge of the second absorbent sheet (22a) and that is in contact with the back sheet (23). This configuration suppresses the return of liquid.
    Type: Application
    Filed: October 21, 2016
    Publication date: December 6, 2018
    Applicant: LIVEDO CORPORATION
    Inventors: Yuki Takahashi, Miyuki Fujimoto, Hironobu Yokokawa, Osamu Moriura, Kazuya Maruhata
  • Patent number: 10117789
    Abstract: An absorbent sheet manufacturing apparatus has a particle collision surface (224) that extends downward from a cylinder outer surface (211) in between the lowermost part of a supply cylinder (21) and a second sheet conveying roller (41). Some of the particles emitted forward in the rotation direction of the supply cylinder (21) from recessed supply portions (212) that have passed a first cover part (221) collide with the particle collision surface (224), and the colliding particles are guided by the particle collision surface (224) onto a first sheet member (91). This suppresses direct collision of particles emitted from the supply cylinder (21) with a second sheet member (92) on the second sheet conveying roller (41). Scattering of particles that have collided with the second sheet member (92) around the first sheet member (91) and the second sheet member (92) is thus suppressed.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: November 6, 2018
    Assignee: LIVEDO CORPORATION
    Inventor: Kazuya Maruhata
  • Patent number: 10092460
    Abstract: An absorbent article comprising a top sheet, a back sheet and an absorbent core provided therebetween; wherein flap sheets having a center region, end regions and intermediate regions positioned therebetween are provided on both sides of the top sheet in a width direction, the flap sheet has a base part facing to the top sheet and a rising part extending from the base part and formed by folding the flap sheet at an inner edge of the base part in the width direction, the center region and the end region of the base part are joined to the top sheet and/or the back sheet at an inner position, in the width direction, of that the intermediate region of the base part is joined to the top sheet and/or the back sheet, and the rising part is joined to the base part at the end region.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: October 9, 2018
    Assignee: LIVEDO CORPORATION
    Inventors: Yuki Takahashi, Masatoshi Ikeuchi
  • Patent number: 10071001
    Abstract: An objective of the present invention is to provide an absorbent article having an excellent absorption speed of body fluid and excellent dryness after absorbing body fluid. The absorbent article of the present invention comprises: an absorbent body where a water absorbent resin powder meeting the following requirements (a) to (c) is disposed, (a) an absorption speed measured by a vortex method: 20 seconds to 50 seconds, (b) a liquid passing speed under load: 10 seconds or less, (c) a moisture absorption blocking ratio: 5% or less; and a diffusion layer composed of a synthetic fiber assembly substantially having no water absorption.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: September 11, 2018
    Assignee: LIVEDO CORPORATION
    Inventors: Yoshihisa Ota, Motoko Nishida
  • Patent number: 10064763
    Abstract: A pants-type disposable diaper includes a pair of strip projecting parts projecting laterally from a line of connection between front and rear parts located respectively on the belly and back sides of a wearer, a first waist elastic member joined to a first waist region that is an upper part of a waist region extending along a waist opening, and a second waist elastic member joined to a second waist region that is a lower part of the waist region. In a state in which an outer covering sheet is elongated in a right-left direction, a first unit contractile force that is a contractile force in the right-left direction per unit width of the first waist region in an up-down direction is smaller than a second unit contractile force in the second waist region.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: September 4, 2018
    Assignee: LIVEDO CORPORATION
    Inventors: Yuki Takahashi, Emi Amano, Tomohito Uda
  • Patent number: 10052401
    Abstract: To provide an absorbent article that has a high absorption speed, is unlikely to cause a liquid to remain on a skin-contacting surface, has excellent dry feeling, and is unlikely to cause excreted body fluid to return. The present invention provides an absorbent article comprising an absorber composed of at least one absorbent layer, wherein a water-absorbent resin powder meeting the following requirements (a) to (d) is disposed in an uppermost layer of the absorber: (a) a bulk density: 0.45 g/ml to 0.62 g/ml; (b) an absorption speed by a vortex method: 20 seconds to 50 seconds; (c) a liquid-passing speed under load: 10 seconds or less; and (d) a moisture absorption blocking ratio: 5% or less.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: August 21, 2018
    Assignee: LIVEDO CORPORATION
    Inventors: Yoshihisa Ota, Motoko Nishida, Masatoshi Ikeuchi
  • Patent number: 9937084
    Abstract: [Object] To provide an absorbent article and an absorbent body having excellent absorption performance. [Solution] The present invention provides an absorbent body having at least two or more layers, the absorbent body comprising: a water absorption layer having a water absorption region where a water absorbent resin powder is disposed and a thickness-direction-penetrating opening region; and a layer having a diffusion region where a diffusibility improvement material having an under-load liquid passing rate of 15 seconds or less is disposed, as a lower layer of the water absorption layer, wherein the lower layer has the diffusion region disposed at least a part of a portion located below the opening region.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: April 10, 2018
    Assignee: LIVEDO CORPORATION
    Inventors: Yoshihisa Ota, Motoko Nishida
  • Patent number: 9925095
    Abstract: An absorbent article has an absorbing core and a liquid-permeable second sheet disposed on the absorbing core. The absorbing core includes a liquid-holding material and a liquid-permeable core-wrapping sheet. The core-wrapping sheet covers the liquid-holding material, but a portion of a top-side surface of the liquid-holding material is exposed. The second sheet contacts the liquid-holding material at the exposed portion. The second sheet is placed in direct contact with the cellulose fibers of the liquid-holding material, and liquid permeates from the second sheet into the liquid-holding material. Also, deformation of the liquid-holding material is prevented by the hydrophilic core-wrapping sheet covering the liquid-holding material.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: March 27, 2018
    Assignees: LIVEDO USA, INC., LIVEDO CORPORATION
    Inventor: Takuya Hishikawa
  • Patent number: 9889052
    Abstract: An absorbent article has a lower absorbing core and an upper absorbing core. Each absorbing core includes a liquid-holding material and a liquid-permeable core-wrapping sheet. The liquid-holding material is covered by the liquid-permeable core-wrapping sheet, but it also has an exposed portion not covered by the liquid-permeable core-wrapping sheet. The exposed portions of the lower absorbing core and the upper absorbing core face each other and the liquid-holding materials are connected with each other at the exposed portion. Because the liquid-holding material of the upper absorbing core is in direct contact with the liquid-holding material of the lower absorbing core, the area provides a path through which liquid flows smoothly from the upper absorbing core to the lower absorbing core. Also, because the upper and lower liquid-holding materials are covered by the core-wrapping sheets, deformation of the liquid-holding materials is prevented.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: February 13, 2018
    Assignees: LIVEDO USA, INC., LIVEDO CORPORATION
    Inventor: Takuya Hishikawa