Patents Assigned to Daio Paper Corporation
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Patent number: 11612520Abstract: To provide a pad that folds in three in the front-back direction maintaining the shapes of a large number of convex portions protruding on a front-face sheet that prevents the deterioration of liquid diffusibility. The left front side portion and the left back side portion are folded inward with a first left side folding line which is extending in the front-back direction as the center for the folding and which is provided close to the left side with respect to the left side narrowing edge, and the right front side portion and the right back side portion are folded inward with a first right side holding line which is extending in the front-back direction and which is provided close to the right side with respect to the left side narrowing edge.Type: GrantFiled: July 19, 2017Date of Patent: March 28, 2023Assignee: Daio Paper CorporationInventor: Aya Oshima
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Patent number: 11612521Abstract: A waist portion W has a first portion P1 and a second portion P2 each including a waist elastic member. The first portion P1 includes an over sheet layer folded back at an edge of a waist opening WO extending to an inside of a waist inner sheet layer. The over sheet layer is formed of a sheet material having a portion folded back at an edge of the waist opening WO from a position outside the waist elastic member in the second portion P2 and extending to a position inside the waist elastic member in the second portion P2. In the first portion P1, the waist elastic member is not fixed to the sheet material. In the second portion P2, the waist elastic member is fixed to the sheet material, and the sheet material is contracted in a width direction WD together with the waist elastic member.Type: GrantFiled: May 11, 2018Date of Patent: March 28, 2023Assignee: Daio Paper CorporationInventor: Yoshitake Ishikawa
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Publication number: 20230089492Abstract: A disposable wearable article including a top sheet having a skin-touching region that is brought into contact with skin of a wearer, the top sheet being made from nonwoven fabric, wherein the skin-touching region has a lotion-bearing zone which bears a hydrophilic lotion containing water and glycerin, the lotion-bearing zone having a MD dimension of 30 mm or larger and a CD dimension of 5 mm or larger, wherein the lotion-bearing zone has a surface moisture percentage of 3 to 10%, wherein the hydrophilic lotion has a water activity value of 0.8 or less, and wherein the hydrophilic lotion is free of preservatives.Type: ApplicationFiled: March 16, 2021Publication date: March 23, 2023Applicant: DAIO PAPER CORPORATIONInventors: Yuto Fujiwara, Wataru Nakamura
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Publication number: 20230093348Abstract: A method for manufacturing a fibrous cellulose having a high resin reinforcing effect and a method for manufacturing a fibrous cellulose composite resin having high strength. A method for manufacturing a fibrous cellulose includes: a step of subjecting a cellulose raw material and at least one of urea and a derivative of urea to a heat treatment to replace a part or all of hydroxyl groups of the cellulose raw material with carbamate groups; and a step of defibrating the cellulose raw material within a range in which an average fiber width is 0.1 ?m or more. The heat treatment is performed under a condition that organic acid ions are added in an amount of 0.001 mmol or more with respect to 1 g of the urea and the derivative of urea. In addition, a fibrous cellulose thus obtained and a resin are kneaded to manufacture a fibrous cellulose composite resin.Type: ApplicationFiled: March 2, 2021Publication date: March 23, 2023Applicant: DAIO PAPER CORPORATIONInventors: Takaaki Imai, Yu Ochiai
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Patent number: 11607352Abstract: A method for producing an underpants-type disposable diaper including a stretchable region stretchable at least in one direction in an outer body. The stretchable region is formed by stacking an elastic film between a first sheet layer composed of a nonwoven fabric and a second sheet layer composed of a nonwoven fabric. When the elastic film is stretched in the stretching and contracting direction, the first sheet layer and the second sheet layer are joined via through holes formed in the elastic film at a large number of sheet bond portions arranged at intervals in each of a stretching and contracting direction and a direction orthogonal thereto, and in the sheet bond portions, the first sheet layer and the second sheet layer (20B) are joined at least by a melted and solidified material of the elastic film among the first sheet layer and the second sheet layer.Type: GrantFiled: June 30, 2020Date of Patent: March 21, 2023Assignee: DAIO PAPER CORPORATIONInventors: Aya Takahashi, Yukina Furuhashi
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Patent number: 11583452Abstract: A pad capable of enhancing the fitting performance to a wearer. An absorber includes a front body portion, a back body portion, and a narrowing portion, whose width dimension is reduced, provided between the front body portion and the back body portion. A first groove extending in the front-back direction is formed in a central portion in the width direction of the absorber. A third groove extending in the width direction is formed in a central portion in the front-back direction of the narrowing portion. A second groove extending in the width direction is formed in a front side portion in the front-back direction of the narrowing portion. A fourth groove extending in the width direction is formed in a back side portion in the front-back direction of the narrowing portion.Type: GrantFiled: July 19, 2017Date of Patent: February 21, 2023Assignee: Daio Paper CorporationInventor: Tatsuhiko Kashiwagi
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Patent number: 11584803Abstract: A fine cellulose fiber in which when the fine cellulose fiber is formed into a dispersion, the dispersion has very high light transmittance and viscosity, and a method for producing the fine cellulose fiber. The fine cellulose fiber has a fiber width of 1 to 200 nm. A part of hydroxy groups of the cellulose fiber are substituted with a predetermine functional group to introduce an ester of phosphorus-oxo acid, and the introduction amount of the functional group is more than 2.0 mmol per 1 g of the cellulose fiber. For producing the fine cellulose fiber, to cellulose fiber is added a solution having a pH of less than 3.0 and including an additive (A) containing at least one of a phosphorus-oxo acid and a phosphorus-oxo acid metal salt and an additive (B) containing at least one of urea and a urea derivative, and the mixture is heated to perform fibrillation.Type: GrantFiled: May 17, 2019Date of Patent: February 21, 2023Assignee: Daio Paper CorporationInventor: Ikko Matsusue
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Patent number: 11576826Abstract: A cover nonwoven fabric covers a back surface of an inner member from between a front side outer member and the inner member to between a back side outer member and the inner member. The cover nonwoven fabric extends from a back surface side of a base portion of one side gather to a back surface side of a base portion of the other side gather. The cover nonwoven fabric has holes penetrating the front and back surfaces at intervals from between the front side outer and inner members to between the back side outer and inner members. The side edges of the cover nonwoven fabric are located at the positions same as the side edges of the narrowest part of the absorber in the width direction or on the center side in the width direction with respect to the side edges of the narrowest part.Type: GrantFiled: May 11, 2017Date of Patent: February 14, 2023Assignee: Daio Paper CorporationInventors: Akinori Fukae, Yosuke Mori, Aya Ide
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Publication number: 20230042569Abstract: A household tissue storage container including a container main body and an open/close lid. The container main body includes an upper container main body, a lower container main body, a connector, and a button provided on an upper surface of the upper container main body, to open and close the open/close lid. The button includes a button side fitter projecting downward, and button side ribs projecting downward from the button in front of the button side fitter. The upper container main body includes a button attaching portion including a main body side fitter which projects upward and to which the button side fitter is be fitted, and main body side ribs projecting forward from an outer surface of the main body side fitter, and in attaching the button to the button attaching portion, the button side ribs are inserted and fitted between the adjacent main body side ribs.Type: ApplicationFiled: February 4, 2021Publication date: February 9, 2023Applicant: DAIO PAPER CORPORATIONInventor: Akiteru MIURA
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Publication number: 20230023990Abstract: An underpants-type disposable diaper wherein the end portions of elastic members are kept from being drawn in, and the bonding strength in side sealed portions is kept from deteriorating. The diaper has outer member defining front and back body sections, wherein side portions of the outer member in the front and back body sections are joined to form side sealed portions, which produce a waist opening and a pair of leg openings. The front and/or back body sections, are provided with a tortuous elastic member extending with curvature from one to the other of the side sealed portions, and bonded thereto with adhesive. The amount of adhesive applied to a zone neighbouring the inner zone of each side sealed portion is larger than that applied to the outer zone of each side sealed portion.Type: ApplicationFiled: December 8, 2020Publication date: January 26, 2023Applicant: DAIO PAPER CORPORATIONInventor: Asako Sawai
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Patent number: 11559183Abstract: A wet sheet for cleaning includes multiple layers and is impregnated with a chemical solution. The wet sheet includes hydrophobic fiber layers arranged in a front surface layer and a back surface layer, and a hydrophilic fiber layer arranged in an intermediate layer. The hydrophobic fiber layers have an interlaced part with a high fiber density where the hydrophobic fiber layers are interlaced with the hydrophilic fiber layer. The interlaced part has at least one slightly interlaced part and at least one highly interlaced part which is formed in a dent shape and which is interlaced with a higher fiber density. The highly interlaced part is formed in an area ratio of 10 to 20% to an area of the front surface layer or the back surface layer. Static friction resistance of the wet sheet for cleaning is lower than kinetic friction resistance of the wet sheet for cleaning.Type: GrantFiled: October 31, 2017Date of Patent: January 24, 2023Assignee: DAIO PAPER CORPORATIONInventor: Naoki Shintani
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Patent number: 11540956Abstract: An elastic film stretchable structure in which an elastic film is stacked between a first sheet layer having air permeability and a second sheet layer having air permeability, the first sheet layer and the second sheet layer are bonded through bonding holes penetrating the elastic film at a number of sheet bonded portions arranged at intervals. A region having the elastic film stretchable structure has a stretchable region that is stretchable in a stretchable direction, and the stretchable region is contracted in the stretchable direction by a contraction force of the elastic film and is extensible in the stretchable direction, and vent holes are formed on the elastic film at sites where the elastic film does not overlap with the sheet bonded portions.Type: GrantFiled: July 19, 2017Date of Patent: January 3, 2023Assignee: Daio Paper CorporationInventor: Tomonari Takeuchi
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Publication number: 20220409448Abstract: A disposable diaper capable of providing good suppression of diaper rash. A disposable diaper including top sheet 30 constituting a surface for use, liquid-impervious sheet provided on the under face side, and absorbent element interposed therebetween, wherein the top sheet is formed of perforated nonwoven fabric having a number of holes arranged at intervals and each penetrating the two sides of the fabric, and a moisturizer M composed mainly of glycerin is applied to the top sheet.Type: ApplicationFiled: November 18, 2020Publication date: December 29, 2022Applicant: DAIO PAPER CORPORATIONInventor: Yuki Okada
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Publication number: 20220401270Abstract: A disposable diaper having improved air permeability in its wait region irrespective of the configuration of an elastic member. The problem is solved by a disposable diaper including top sheet constituting a use side surface, liquid-impervious sheet provided on the under face side, and an absorbent element interposed therebetween, wherein cover nonwoven sheet is provided on the under face side of the liquid-impervious sheet, the cover nonwoven sheet being formed of perforated nonwoven fabric having a number of apertures arranged at intervals and each penetrating two sides of the fabric, and imaginary lines connecting the adjacent apertures located in a waist region of the cover nonwoven sheet form a Moroccan pattern, and at least part of the Moroccan pattern does not overlap an absorber body contained in the absorbent element.Type: ApplicationFiled: November 18, 2020Publication date: December 22, 2022Applicant: DAIO PAPER CORPORATIONInventor: Yuki Okada
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Publication number: 20220403590Abstract: A wiping sheet includes a patterned part of a fiber assembling base material and a non-patterned part of the fiber assembling base material. The patterned part includes cellulose nanofiber; and the non-patterned part does not include the cellulose nanofiber.Type: ApplicationFiled: July 9, 2020Publication date: December 22, 2022Applicant: DAIO PAPER CORPORATIONInventor: Shoko YAMASHITA
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Patent number: 11529265Abstract: 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: GrantFiled: May 1, 2018Date of Patent: December 20, 2022Assignee: Daio Paper CorporationInventor: Arika Tsunoda
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Patent number: D979543Type: GrantFiled: June 4, 2021Date of Patent: February 28, 2023Assignee: DAIO PAPER CORPORATIONInventors: Takuro Shimada, Alina Bista, Curt Carrender
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Patent number: D980200Type: GrantFiled: June 4, 2021Date of Patent: March 7, 2023Assignee: DAIO PAPER CORPORATIONInventors: Takuro Shimada, Alina Bista, Curt Carrender
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Patent number: D980201Type: GrantFiled: December 17, 2021Date of Patent: March 7, 2023Assignee: DAIO PAPER CORPORATIONInventors: Takuro Shimada, Alina Bista, Curt Carrender
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Patent number: D980419Type: GrantFiled: November 16, 2020Date of Patent: March 7, 2023Assignee: DAIO PAPER CORPORATIONInventor: Takahiko Adachi