Patents by Inventor Motoko Nishida
Motoko Nishida 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: 11382803Abstract: 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: GrantFiled: December 14, 2018Date of Patent: July 12, 2022Assignee: LIVEDO CORPORATIONInventors: Yoshihisa Ota, Motoko Nishida
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Publication number: 20210137752Abstract: The present invention provides an absorbent body comprising: a base material and a water absorbent resin powder fixed on the base material by a fixing agent, wherein the base material is a fiber base material having a mass per unit area in a range from 10 g/m2 to 500 g/m2, and the fixing agent is a copolymer having an acid value in a range from 20 mgKOH/g to 150 mgKOH/g and including a structural unit (X) derived from at least one monomer selected from the group consisting of an olefin and a vinyl aromatic compound and a structural unit (Y) derived from a monomer having an acidic group. The absorbent body has excellent water absorbent resin powder supporting property.Type: ApplicationFiled: February 20, 2018Publication date: May 13, 2021Applicant: LIVEDO CORPORATIONInventors: Yoshihisa OTA, Motoko NISHIDA
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Patent number: 10925995Abstract: To provide an absorbent body and an absorbent article having excellent deodorization effect. The present invention provides an absorber comprising, a crosslinked polymer mainly composed of acrylic acid and having carboxyl groups thereof being at least partially neutralized as a water-absorbent resin powder, and an antibacterial cationic surfactant, wherein the antibacterial cationic surfactant is a compound neutralized with an acid having an acid dissociation constant pKa in water at 25 degrees centigrade in a range from 3.0 to 5.5.Type: GrantFiled: February 20, 2013Date of Patent: February 23, 2021Assignee: LIVEDO CORPORATIONInventors: Yoshihisa Ota, Motoko Nishida, Masatoshi Ikeuchi
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Publication number: 20190117481Abstract: 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: ApplicationFiled: December 14, 2018Publication date: April 25, 2019Applicant: LIVEDO CORPORATIONInventors: Yoshihisa Ota, Motoko Nishida
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Patent number: 10195095Abstract: 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: GrantFiled: March 14, 2014Date of Patent: February 5, 2019Assignee: LIVEDO CORPORATIONInventors: Yoshihisa Ota, Motoko Nishida
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Patent number: 10071001Abstract: 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: GrantFiled: September 12, 2013Date of Patent: September 11, 2018Assignee: LIVEDO CORPORATIONInventors: Yoshihisa Ota, Motoko Nishida
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Patent number: 10052401Abstract: 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: GrantFiled: December 20, 2012Date of Patent: August 21, 2018Assignee: LIVEDO CORPORATIONInventors: Yoshihisa Ota, Motoko Nishida, Masatoshi Ikeuchi
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Patent number: 9937084Abstract: [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: GrantFiled: August 30, 2013Date of Patent: April 10, 2018Assignee: LIVEDO CORPORATIONInventors: Yoshihisa Ota, Motoko Nishida
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Patent number: 9492583Abstract: An objective of the present invention is to provide an absorbent article exhibiting excellent absorption speed of body fluid and dryness after absorbing body fluid, even in the case of absorbing body fluid repeatedly. The absorbent article of the present invention comprises: a water absorption layer where a water absorbent resin powder meeting the following requirements (a) to (d) is disposed, (a) a bulk density: 0.45 g/ml to 0.62 g/ml, (b) an absorption speed measured by a vortex method: 20 seconds to 50 seconds, (c) a liquid passing speed under load: 10 seconds or less, (d) a moisture absorption blocking ratio: 5% or less; and a diffusion layer disposed below the water absorption layer and including a cellulose acetate fiber.Type: GrantFiled: September 12, 2013Date of Patent: November 15, 2016Assignee: LIVEDO CORPORATIONInventors: Yoshihisa Ota, Motoko Nishida
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Publication number: 20160199527Abstract: An objective of the present invention is to provide an absorbent article exhibiting excellent absorption speed of body fluid and dryness after absorbing body fluid, even in the case of absorbing body fluid repeatedly. The absorbent article of the present invention comprises: a water absorption layer where a water absorbent resin powder meeting the following requirements (a) to (d) is disposed, (a) a bulk density: 0.45 g/ml to 0.62 g/ml, (b) an absorption speed measured by a vortex method: 20 seconds to 50 seconds, (c) a liquid passing speed under load: 10 seconds or less, (d) a moisture absorption blocking ratio: 5% or less; and a diffusion layer disposed below the water absorption layer and including a cellulose acetate fiber.Type: ApplicationFiled: September 12, 2013Publication date: July 14, 2016Applicant: LIVEDO CORPORATIONInventors: Yoshihisa Ota, Motoko Nishida
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Publication number: 20160051423Abstract: 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: ApplicationFiled: March 14, 2014Publication date: February 25, 2016Applicant: LIVEDO CORPORATIONInventors: Yoshihisa Ota, Motoko Nishida
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Publication number: 20150297424Abstract: 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: ApplicationFiled: September 12, 2013Publication date: October 22, 2015Applicant: LIVEDO CORPORATIONInventors: Yoshihisa Ota, Motoko Nishida
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Publication number: 20150224000Abstract: [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: ApplicationFiled: August 30, 2013Publication date: August 13, 2015Applicant: LIVEDO CORPORATIONInventors: Yoshihisa Ota, Motoko Nishida
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Publication number: 20150209197Abstract: [Object] To provide an absorbent article and an absorbent body having excellent absorption performance. [Solution] An absorbent body of the present invention is an absorbent body including a water absorbent resin powder, and the absorbent body includes a layer having formed at least partially thereon a diffusion region where a diffusibility improvement material having an under-load liquid passing rate of 15 seconds or less is disposed.Type: ApplicationFiled: August 30, 2013Publication date: July 30, 2015Applicant: LIVEDO CORPORATIONInventors: Yoshihisa Ota, Motoko Nishida
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Patent number: 8945080Abstract: Each of first fastening tapes and second fastening tapes provided on both left and right sides of a disposable diaper has a first fastening part and a second fastening part which are away from each other. When putting the disposable diaper on a slender wearer, the second fastening tape is fastened on an attachment part of main body part so as to be laid over the first fastening tape. In the second fastening tape, since an intermediate area is provided between the first fastening part and the second fastening part, a total area of fastening parts can be reduced. Since a distance between an outer edge of the first fastening part and an inner edge of the second fastening part is made larger than a width of a tape base at the intermediate area in the first fastening tape, the second fastening tape can be easily fastened.Type: GrantFiled: January 13, 2011Date of Patent: February 3, 2015Assignee: Livedo CorporationInventors: Motoko Nishida, Yuki Hasebe
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Publication number: 20150024192Abstract: To provide an absorbent body and an absorbent article having excellent deodorization effect. The present invention provides an absorber comprising, a crosslinked polymer mainly composed of acrylic acid and having carboxyl groups thereof being at least partially neutralized as a water-absorbent resin powder, and an antibacterial cationic surfactant, wherein the antibacterial cationic surfactant is a compound neutralized with an acid having an acid dissociation constant pKa in water at 25 degrees centigrade in a range from 3.0 to 5.5.Type: ApplicationFiled: February 20, 2013Publication date: January 22, 2015Applicant: LIVEDO CORPORATIONInventors: Yoshihisa Ota, Motoko Nishida, Masatoshi Ikeuchi
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Publication number: 20140378926Abstract: To provide an absorber 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, and a water-absorbent resin powder that can be suitably used in the absorber. A water-absorbent resin powder of the present invention is characterized by meeting the following requirements (a) to (d): (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. An absorber of the present invention uses the water-absorbent resin powder of the present invention. An absorbent article of the present invention includes the absorber of the present invention.Type: ApplicationFiled: December 20, 2012Publication date: December 25, 2014Applicant: LIVEDO CORPORATIONInventors: Yoshihisa Ota, Motoko Nishida, Masatoshi Ikeuchi
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Publication number: 20140364824Abstract: 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: ApplicationFiled: December 20, 2012Publication date: December 11, 2014Applicant: LIVEDO CORPORATIONInventors: Yoshihisa Ota, Motoko Nishida, Masatoshi Ikeuchi
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Publication number: 20120289924Abstract: Each of first fastening tapes and second fastening tapes provided on both left and right sides of a disposable diaper has a first fastening part and a second fastening part which are away from each other. When putting the disposable diaper on a slender wearer, the second fastening tape is fastened on an attachment part of main body part so as to be laid over the first fastening tape. In the second fastening tape, since an intermediate area is provided between the first fastening part and the second fastening part, a total area of fastening parts can be reduced. Since a distance between an outer edge of the first fastening part and an inner edge of the second fastening part is made larger than a width of a tape base at the intermediate area in the first fastening tape, the second fastening tape can be easily fastened.Type: ApplicationFiled: January 13, 2011Publication date: November 15, 2012Inventors: Motoko Nishida, Yuki Hasebe