Patents by Inventor Yasuko ISHIKAWA
Yasuko ISHIKAWA 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: 11229560Abstract: A stretchable structure of an absorbent article has a first sheet layer of a nonwoven fabric; a second sheet layer of a nonwoven fabric and opposed to one side of the first sheet layer. A plurality of elongated elastically stretchable members are provided along the stretchable direction at intervals from each other between the first sheet layer and the second sheet layer. The first sheet layer and the second sheet layer have sheet bonded portions bonded via a hot melt adhesive disposed in a striped pattern that is intermittent in the longitudinal direction of the elastically stretchable members and continuously elongated in the direction intersecting with the elastically stretchable members. One of the first sheet layer and the second sheet layer is a spunbond nonwoven fabric, and the other sheet layer is an air-through nonwoven fabric whose surface on the spunbond nonwoven fabric side is a fluffy surface.Type: GrantFiled: February 23, 2017Date of Patent: January 25, 2022Assignee: Daio Paper CorporationInventors: Yohei Ono, Yasuko Ishikawa
-
Patent number: 11229556Abstract: A first sheet layer is made of a nonwoven fabric; a second sheet layer is made of a nonwoven fabric opposed to one side of the first sheet layer; and a plurality of elongated elastically stretchable members are provided along the stretchable direction at intervals from each other between the first sheet layer and the second sheet layer. Both ends of the elastically stretchable members are fixed to at least one of the first sheet layer and the second sheet layer via a first hot melt adhesive. The first sheet layer and the second sheet layer are bonded via a second hot melt adhesive in a range in the stretchable direction corresponding to a space between the both ends of the elastically stretchable member. The holding power of the first hot melt adhesive is higher than the second hot meld adhesive.Type: GrantFiled: January 25, 2017Date of Patent: January 25, 2022Assignee: Daio Paper CorporationInventor: Yasuko Ishikawa
-
Patent number: 11173076Abstract: A stretchable structure of an absorbent article has a first sheet layer made of a nonwoven fabric; a second sheet layer made of a nonwoven fabric and opposed to one side surface of the first sheet layer; and a plurality of elongated elastically stretchable members provided along the stretchable direction at intervals from each other between the first sheet layer and the second sheet layer. The first sheet layer and the second sheet layer have sheet bonded portions bonded via a hot melt adhesive disposed in a striped pattern that is intermittent in the longitudinal direction of the elastically stretchable members and continuously elongated in the direction intersecting with the elastically stretchable members, and either one of the first sheet layer and the second sheet layer is made of a low-adhesion nonwoven fabric having lower peel strength with respect to the hot melt adhesive than the other sheet layer.Type: GrantFiled: February 23, 2017Date of Patent: November 16, 2021Assignee: DAIO PAPER CORPORATIONInventors: Yohei Ono, Yasuko Ishikawa
-
Patent number: 11083637Abstract: A first sheet layer made of a nonwoven fabric; a second sheet layer made of a nonwoven fabric opposed to one side of the first sheet layer; and a plurality of elongated elastically stretchable members provided along the stretchable direction at intervals from each other between the first sheet layer and the second sheet layer are provided. At least a part of each end of the elastically stretchable member is fixed to at least one of the first sheet layer and the second sheet layer only via a first hot melt adhesive. The first sheet layer and the second sheet layer are bonded via a second hot melt adhesive in a range in the stretchable direction corresponding to a space between the both ends of the elastically stretchable member. The holding power of the first hot melt adhesive is higher than the second hot meld adhesive.Type: GrantFiled: January 25, 2017Date of Patent: August 10, 2021Assignee: Daio Paper CorporationInventor: Yasuko Ishikawa
-
Patent number: 11020281Abstract: The present invention is intended to prevent cutting of the resilient and elastic members by a welding process.Type: GrantFiled: August 19, 2015Date of Patent: June 1, 2021Assignee: DAIO PAPER CORPORATIONInventor: Yasuko Ishikawa
-
Patent number: 10893985Abstract: An object of the present invention is to provide an elastic structure that has straightly extended ridges with excellent appearance, air permeability, and fluffy feel.Type: GrantFiled: March 20, 2014Date of Patent: January 19, 2021Assignee: DAIO PAPER CORPORATIONInventors: Yasuko Ishikawa, Keisuke Ebiduka, Shunji Seno
-
Publication number: 20200397622Abstract: A stretchable structure of an absorbent article has a first sheet layer made of a nonwoven fabric; a second sheet layer made of a nonwoven fabric and opposed to one side surface of the first sheet layer; and a plurality of elongated elastically stretchable members provided along the stretchable direction at intervals from each other between the first sheet layer and the second sheet layer. The first sheet layer and the second sheet layer have sheet bonded portions bonded via a hot melt adhesive disposed in a striped pattern that is intermittent in the longitudinal direction of the elastically stretchable members and continuously elongated in the direction intersecting with the elastically stretchable members, and either one of the first sheet layer and the second sheet layer is made of a low-adhesion nonwoven fabric having lower peel strength with respect to the hot melt adhesive than the other sheet layer.Type: ApplicationFiled: February 23, 2017Publication date: December 24, 2020Applicant: DAIO PAPER CORPORATIONInventors: Yohei Ono, Yasuko Ishikawa
-
Publication number: 20200352792Abstract: A first sheet layer is made of a nonwoven fabric; a second sheet layer is made of a nonwoven fabric opposed to one side of the first sheet layer; and a plurality of elongated elastically stretchable members are provided along the stretchable direction at intervals from each other between the first sheet layer and the second sheet layer. Both ends of the elastically stretchable members are fixed to at least one of the first sheet layer and the second sheet layer via a first hot melt adhesive. The first sheet layer and the second sheet layer are bonded via a second hot melt adhesive in a range in the stretchable direction corresponding to a space between the both ends of the elastically stretchable member. The holding power of the first hot melt adhesive is higher than the second hot meld adhesive.Type: ApplicationFiled: January 25, 2017Publication date: November 12, 2020Applicant: Daio Paper CorporationInventor: Yasuko Ishikawa
-
Publication number: 20200297552Abstract: A stretchable structure of an absorbent article has a first sheet layer of a nonwoven fabric; a second sheet layer of a nonwoven fabric and opposed to one side of the first sheet layer. A plurality of elongated elastically stretchable members are provided along the stretchable direction at intervals from each other between the first sheet layer and the second sheet layer. The first sheet layer and the second sheet layer have sheet bonded portions bonded via a hot melt adhesive disposed in a striped pattern that is intermittent in the longitudinal direction of the elastically stretchable members and continuously elongated in the direction intersecting with the elastically stretchable members. One of the first sheet layer and the second sheet layer is a spunbond nonwoven fabric, and the other sheet layer is an air-through nonwoven fabric whose surface on the spunbond nonwoven fabric side is a fluffy surface.Type: ApplicationFiled: February 23, 2017Publication date: September 24, 2020Applicant: Daio Paper CorporationInventors: Yohei ONO, Yasuko ISHIKAWA
-
Publication number: 20190021916Abstract: A first sheet layer made of a nonwoven fabric; a second sheet layer made of a nonwoven fabric opposed to one side of the first sheet layer; and a plurality of elongated elastically stretchable members provided along the stretchable direction at intervals from each other between the first sheet layer and the second sheet layer are provided. At least a part of each end of the elastically stretchable member is fixed to at least one of the first sheet layer and the second sheet layer only via a first hot melt adhesive. The first sheet layer and the second sheet layer are bonded via a second hot melt adhesive in a range in the stretchable direction corresponding to a space between the both ends of the elastically stretchable member. The holding power of the first hot melt adhesive is higher than the second hot meld adhesive.Type: ApplicationFiled: January 25, 2017Publication date: January 24, 2019Applicant: Daio Paper CorporationInventor: Yasuko Ishikawa
-
Patent number: 10092457Abstract: In an underpants-type disposable diaper including a waist edge portion in which pleats extend straight and which has excellent fit, the inner layer and the outer layer at the waist edge portion of an outer body are joined by an adhesive arranged intermittently or a welding process performed intermittently in the width direction and continuously in a direction crossing the width direction, thereby forming sheet joined sections, waist edge portion resilient and elastic members are sandwiched between the inner layer and the outer layer and fixed to at least one of the inner layer and the outer layer at positions intersecting with the sheet joined sections, and the diaper includes an area not being joined and not having resilient and elastic member at an end portion of the outer body on the waist opening side in the waist edge portion, the area not having sheet joined sections nor the waist edge portion resilient and elastic members, and a vertical range being wider than spacing between the waist edge portion resType: GrantFiled: February 26, 2015Date of Patent: October 9, 2018Assignee: DAIO PAPER CORPORATIONInventors: Yasuko Ishikawa, Shunji Seno
-
Publication number: 20170281417Abstract: The present invention is intended to prevent cutting of the resilient and elastic members by a welding process.Type: ApplicationFiled: August 19, 2015Publication date: October 5, 2017Inventor: Yasuko ISHIKAWA
-
Publication number: 20170209314Abstract: In an underpants-type disposable diaper including a waist edge portion in which pleats extend straight and which has excellent fit, the inner layer and the outer layer at the waist edge portion of an outer body are joined by an adhesive arranged intermittently or a welding process performed intermittently in the width direction and continuously in a direction crossing the width direction, thereby forming sheet joined sections, waist edge portion resilient and elastic members are sandwiched between the inner layer and the outer layer and fixed to at least one of the inner layer and the outer layer at positions intersecting with the sheet joined sections, and the diaper includes an area not being joined and not having resilient and elastic member at an end portion of the outer body on the waist opening side in the waist edge portion, the area not having sheet joined sections nor the waist edge portion resilient and elastic members, and a vertical range being wider than spacing between the waist edge portion resType: ApplicationFiled: February 26, 2015Publication date: July 27, 2017Applicant: DAIO PAPER CORPORATIONInventors: Yasuko ISHIKAWA, Shunji SENO
-
Publication number: 20160067115Abstract: An object of the present invention is to provide an elastic structure that has straightly extended ridges with excellent appearance, air permeability, and fluffy feel.Type: ApplicationFiled: March 20, 2014Publication date: March 10, 2016Inventors: Yasuko ISHIKAWA, Keisuke EBIDUKA, Shunji SENO