Patents by Inventor Arika Tsunoda

Arika Tsunoda 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).

  • Patent number: 11730637
    Abstract: A disposable wearable article includes an elastic film stretchable structure in which an elastic film is laminated between a first sheet layer and a second sheet layer. The first sheet layer and the second sheet layer are bonded to each other through holes passing through the elastic film with many bonded portions arranged at intervals. A region having the elastic film stretchable structure includes a stretchable region that elastically stretches and contracts together with the elastic film. The stretchable region includes a plurality of elastic films disposed so as to have an overlapping portion. The number of laminated layers of the elastic film in a region located in an intermediate portion of the stretchable region in an orthogonal direction (XD) orthogonal to a stretchable direction (ED) is different from that in each of second regions adjacent to both sides of the first region.
    Type: Grant
    Filed: December 13, 2022
    Date of Patent: August 22, 2023
    Assignee: Daio Paper Corporation
    Inventor: Arika Tsunoda
  • Publication number: 20230181387
    Abstract: A disposable wearable article includes an elastic film stretchable structure in which an elastic film is laminated between a first sheet layer and a second sheet layer. The first sheet layer and the second sheet layer are bonded to each other through holes passing through the elastic film with many bonded portions arranged at intervals. A region having the elastic film stretchable structure includes a stretchable region that elastically stretches and contracts together with the elastic film. The stretchable region includes a plurality of elastic films disposed so as to have an overlapping portion. The number of laminated layers of the elastic film in a region located in an intermediate portion of the stretchable region in an orthogonal direction (XD) orthogonal to a stretchable direction (ED) is different from that in each of second regions adjacent to both sides of the first region.
    Type: Application
    Filed: December 13, 2022
    Publication date: June 15, 2023
    Applicant: Daio Paper Corporation
    Inventor: Arika Tsunoda
  • Patent number: 11529266
    Abstract: An elastic sheet stretchable structure in which a first sheet layer and a second sheet layer are bonded through joint holes penetrating an elastic film at a plurality of sheet joined portions arranged at intervals is included. Joined portion groups in the stretchable region are in a relationship of intersecting a stretchable direction line at respective positions in an orthogonal direction or in a relationship of not intersecting the stretchable direction line at a separation width of 0.5 mm or less in the orthogonal direction of the stretchable direction line. The joined portion groups are in a relationship of not intersecting an oblique line at a predetermined separation width in the orthogonal direction in an oblique line group of oblique lines q in the orthogonal direction intersecting the stretchable direction line within an angle range ? of 45 degrees or less.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: December 20, 2022
    Assignee: Daio Paper Corporation
    Inventors: Arika Tsunoda, Syunsuke Sakai
  • Patent number: 11529265
    Abstract: A disposable wearable article includes an elastic film stretchable structure in which an elastic film is laminated between a first sheet layer and a second sheet layer. The first sheet layer and the second sheet layer are bonded to each other through holes passing through the elastic film with many bonded portions arranged at intervals. A region having the elastic film stretchable structure includes a stretchable region that elastically stretches and contracts together with the elastic film. The stretchable region includes a plurality of elastic films disposed so as to have an overlapping portion. The number of laminated layers of the elastic film in a region located in an intermediate portion of the stretchable region in an orthogonal direction (XD) orthogonal to a stretchable direction (ED) is different from that in each of second regions adjacent to both sides of the first region.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: December 20, 2022
    Assignee: Daio Paper Corporation
    Inventor: Arika Tsunoda
  • Publication number: 20220087878
    Abstract: A stretchable member has a second sheet layer with an exposed portion, first sheet layer, and elastic sheet interposed therebetween. The second and the first sheet layers are joined at multiple sheet joining portions arranged at intervals through joining holes penetrating the elastic sheet or via the elastic sheet, and vent holes each opened at least in a spread state by displacement of the edge of each joining hole away from the circumferential edge of each sheet joining portion in the stretchable direction ED. The colors of the external surface of the elastic sheet and of portions of the external surface of the first sheet layer observed through the vent holes are observable through the second sheet layer, and the color difference ?E between the colors of the external surface of the elastic sheet and of the external surface of the first sheet layer is 30 or more.
    Type: Application
    Filed: February 21, 2020
    Publication date: March 24, 2022
    Applicant: DAIO PAPER CORPORATION
    Inventor: Arika Tsunoda
  • Publication number: 20220071817
    Abstract: A disposable wearable article has colored nonwoven fabric having an exposed portion, and base sheet adjacent to the inner side of the colored nonwoven fabric, wherein the colored nonwoven fabric is a composite nonwoven fabric having a plurality of layers laid one on top of another, wherein the colored nonwoven fabric has, in addition to outermost layer, colored layer colored in a color of the first lightness other than white, wherein the outermost layer of the colored nonwoven fabric has a color of the second lightness higher than the first lightness, and wherein the external surface of the base sheet has a color of the third lightness higher than the first lightness.
    Type: Application
    Filed: February 21, 2020
    Publication date: March 10, 2022
    Applicant: DAIO PAPER CORPORATION
    Inventor: Arika Tsunoda
  • Publication number: 20210228424
    Abstract: A disposable wearable article has an elastic sheet stretchable structure in which a first and second sheet layer are bonded through joint holes penetrating an elastic sheet at a plurality of bonded portions arranged at intervals, wherein a part of the elastic sheet located in a stretchable region is printed with a first design, a part of the elastic sheet in the non-stretchable region is printed with a second design, the first design and the second design are the same when the stretchable and non-stretchable region are at an elongation at elastic limit, and a stretchable direction dimension of design elements of the first design when a stretch rate of the stretchable region is 130% or more is 80% or more of a stretchable direction dimension of design elements of the first design when the stretchable region is at the elongation at elastic limit.
    Type: Application
    Filed: May 24, 2019
    Publication date: July 29, 2021
    Applicant: Daio Paper Corporation
    Inventor: Arika Tsunoda
  • Publication number: 20200375814
    Abstract: A disposable wearable article includes an elastic film stretchable structure in which an elastic film is laminated between a first sheet layer and a second sheet layer. The first sheet layer and the second sheet layer are bonded to each other through holes passing through the elastic film with many bonded portions arranged at intervals. A region having the elastic film stretchable structure includes a stretchable region that elastically stretches and contracts together with the elastic film. The stretchable region includes a plurality of elastic films disposed so as to have an overlapping portion. The number of laminated layers of the elastic film in a region located in an intermediate portion of the stretchable region in an orthogonal direction (XD) orthogonal to a stretchable direction (ED) is different from that in each of second regions adjacent to both sides of the first region.
    Type: Application
    Filed: May 1, 2018
    Publication date: December 3, 2020
    Applicant: Daio Paper Corporation
    Inventor: Arika Tsunoda
  • Publication number: 20200214904
    Abstract: An elastic sheet stretchable structure in which a first sheet layer and a second sheet layer are bonded through joint holes penetrating an elastic film at a plurality of sheet joined portions arranged at intervals is included. Joined portion groups in the stretchable region are in a relationship of intersecting a stretchable direction line at respective positions in an orthogonal direction or in a relationship of not intersecting the stretchable direction line at a separation width of 0.5 mm or less in the orthogonal direction of the stretchable direction line. The joined portion groups are in a relationship of not intersecting an oblique line at a predetermined separation width in the orthogonal direction in an oblique line group of oblique lines q in the orthogonal direction intersecting the stretchable direction line within an angle range ? of 45 degrees or less.
    Type: Application
    Filed: September 25, 2018
    Publication date: July 9, 2020
    Applicant: Daio Paper Corporation
    Inventors: Arika Tsunoda, Syunsuke Sakai