Patents by Inventor Takaaki Yoshinaga
Takaaki Yoshinaga 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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Publication number: 20230093050Abstract: A method for producing an adhesive layer composition for producing a cooling sheet including a backing layer, an adhesive layer, and a liner layer, the method comprising the step of: mixing a composition to be mixed containing water, an alum, sodium edetate, a polyacrylic acid, and a neutralized polyacrylic acid such that a mixing temperature becomes 5 to 23° C., to obtain an adhesive layer composition, wherein in the composition to be mixed, a content of the water is 69 to 938.24% by mass relative to a total mass of the composition to be mixed, a content of the alum is 0.18 to 0.42% by mass relative to the total mass of the composition to be mixed, a content of the sodium edetate is 0.08 to 0.18% by mass relative to the total mass of the composition to be mixed, and a mass ratio between the content of the alum and the content of the sodium edetate (the content of the alum:the content of the sodium edetate) is 1:1 to 5.25:1.Type: ApplicationFiled: February 4, 2021Publication date: March 23, 2023Applicant: HISAMITSU PHARMACEUTICAL CO., INC.Inventors: Kentaro NAKASHIMA, Kento ICHINOHE, Keiichiro TSURUSHIMA, Takaaki YOSHINAGA
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Patent number: 11400053Abstract: The present invention provides a patch comprising a backing layer and an adhesive agent layer, wherein the adhesive agent layer is non-aqueous, the adhesive agent layer contains nonylic acid vanillylamide and aluminum hydroxide, a content of nonylic acid vanillylamide in the adhesive agent layer is 0.01 to 0.025% by mass based on a total mass of the adhesive agent layer, a content of aluminum hydroxide in the adhesive agent layer is 0.55 to 1.5% by mass based on the total mass of the adhesive agent layer, and a mass ratio of the content of nonylic acid vanillylamide to the content of aluminum hydroxide ((content of nonylic acid vanillylamide):(content of aluminum hydroxide)) in the adhesive agent layer is 1:27 to 1:150.Type: GrantFiled: January 23, 2019Date of Patent: August 2, 2022Assignee: HISAMITSU PHARMACEUTICAL CO., INC.Inventors: Yusuke Tanaka, Masahiro Sato, Takaaki Yoshinaga
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Publication number: 20220125626Abstract: A cooling sheet comprising: a backing layer; an adhesive agent layer; and a liner layer for protecting the adhesive agent layer, wherein the adhesive agent layer contains water at 65 to 85% by mass based on a total mass of the adhesive agent layer, polyalkylene glycol monooleate at 0.12 to 0.7% by mass based on the total mass of the adhesive agent layer, polyvinyl alcohol at 3 to 10% by mass based on the total mass of the adhesive agent layer, polyacrylic acid at 0.5 to 5% by mass based on the total mass of the adhesive agent layer, and a parahydroxybenzoate at 0.01 to 1% by mass based on the total mass of the adhesive agent layer, and a mass ratio of a content of the polyvinyl alcohol to a content of the polyacrylic acid is in a range of 1.2:1 to 5:1.Type: ApplicationFiled: February 14, 2020Publication date: April 28, 2022Applicant: HISAMITSU PHARMACEUTICAL CO.,INC.Inventors: Kentaro NAKASHIMA, Keiichiro TSURUSHIMA, Takaaki YOSHINAGA
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Patent number: 11166921Abstract: The present invention provides a patch comprising a backing layer and an adhesive agent layer, wherein the adhesive agent layer is non-aqueous, the adhesive agent layer contains nonylic acid vanillylamide, terpene-based resin, rosin-based resin, styrene-isoprene-styrene block copolymer, and liquid paraffin, a mass ratio of a content of the terpene-based resin to a content of the rosin-based resin ((content of the terpene-based resin)/(content of the rosin-based resin)) in the adhesive agent layer is 0.45 to 1.3, and a mass ratio of a content of the styrene-isoprene-styrene block copolymer to a content of the liquid paraffin ((content of the styrene-isoprene-styrene block copolymer)/(content of the liquid paraffin)) in the adhesive agent layer is 0.45 to 1.2.Type: GrantFiled: January 23, 2019Date of Patent: November 9, 2021Assignee: HISAMITSU PHARMACEUTICAL CO., INC.Inventors: Yusuke Tanaka, Masahiro Sato, Kentaro Nakashima, Takaaki Yoshinaga
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Publication number: 20200352873Abstract: The present invention provides a patch comprising a backing layer and an adhesive agent layer, wherein the adhesive agent layer is non-aqueous, the adhesive agent layer contains nonylic acid vanillylamide and aluminum hydroxide, a content of nonylic acid vanillylamide in the adhesive agent layer is 0.01 to 0.025% by mass based on a total mass of the adhesive agent layer, a content of aluminum hydroxide in the adhesive agent layer is 0.55 to 1.5% by mass based on the total mass of the adhesive agent layer, and a mass ratio of the content of nonylic acid vanillylamide to the content of aluminum hydroxide ((content of nonylic acid vanillylamide):(content of aluminum hydroxide)) in the adhesive agent layer is 1:27 to 1:150.Type: ApplicationFiled: January 23, 2019Publication date: November 12, 2020Applicant: HISAMITSU PHARMACEUTICAL CO., INC.Inventors: Yusuke TANAKA, Masahiro SATO, Takaaki YOSHINAGA
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Publication number: 20200352872Abstract: The present invention provides a patch comprising a backing layer and an adhesive agent layer, wherein the adhesive agent layer is non-aqueous, the adhesive agent layer contains nonylic acid vanillylamide, terpene-based resin, rosin-based resin, styrene-isoprene-styrene block copolymer, and liquid paraffin, a mass ratio of a content of the terpene-based resin to a content of the rosin-based resin ((content of the terpene-based resin)/(content of the rosin-based resin)) in the adhesive agent layer is 0.45 to 1.3, and a mass ratio of a content of the styrene-isoprene-styrene block copolymer to a content of the liquid paraffin ((content of the styrene-isoprene-styrene block copolymer)/(content of the liquid paraffin)) in the adhesive agent layer is 0.45 to 1.2.Type: ApplicationFiled: January 23, 2019Publication date: November 12, 2020Applicant: HISAMITSU PHARMACEUTICAL CO., INC.Inventors: Yusuke TANAKA, Masahiro SATO, Kentaro NAKASHIMA, Takaaki YOSHINAGA
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Publication number: 20200009075Abstract: A patch base comprises gelatin, polyvinyl alcohol, a methyl acrylate/2-ethylhexyl acrylate copolymer, and L-menthyl glyceryl ether, wherein relative to the total mass of the base, the content of the gelatin is 1.5 to 6% by mass, the content of the polyvinyl alcohol is 0.5 to 8% by mass, and the content of the methyl acrylate/2-ethylhexyl acrylate copolymer is 0.5 to 13% by mass.Type: ApplicationFiled: February 15, 2018Publication date: January 9, 2020Applicant: HISAMITSU PHARMACEUTICAL CO., INC.Inventors: Keiichiro TSURUSHIMA, Masakazu SAEKI, Takaaki YOSHINAGA
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Patent number: 10369115Abstract: A gel patch comprising a plaster layer on a support, the plaster layer comprising a mixture of at least a neutralized polyacrylic acid, a poly(methyl acrylate/2-ethylhexyl acrylate) emulsion, and water, wherein the poly(methyl acrylate/2-ethylhexyl acrylate) emulsion is an emulsion having an evaporation residue of 57 to 61% by heating at or above the boiling point of the medium and is present in an amount of at least 2.5 times and preferably at least 3 times the mass of the neutralized polyacrylic acid.Type: GrantFiled: August 21, 2014Date of Patent: August 6, 2019Assignee: HISAMITSU PHARMACEUTICAL CO., LTD.Inventors: Keiichiro Tsurushima, Yasuhisa Kose, Shinji Yamasoto, Seiichiro Tsuru, Takaaki Yoshinaga
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Patent number: 10292941Abstract: Disclosed is an adhesive patch having a support and an adhesive agent layer laminated on the support, wherein the support consists of spunlace nonwoven fabric, the adhesive agent layer comprises an SIS block copolymer and liquid paraffin, the adhesive patch has a first direction, which is a predetermined reference axis direction, and a second direction, which is orthogonal to the first direction, and a bending resistance in the first direction of the adhesive patch is 18 to 30 mm.Type: GrantFiled: February 5, 2016Date of Patent: May 21, 2019Assignee: HITSAMITSU PHARMACEUTICAL CO., INC.Inventors: Kentaro Nakashima, Masahiro Sato, Yasuhisa Kose, Takaaki Yoshinaga
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Patent number: 10123977Abstract: A gel patch includes a base fabric, an adhesive layer, and a release liner in this order, wherein the adhesive layer contains a physiologically active substance, a water-soluble (meth)acrylic polymer, water, a surfactant, and poly(methyl acrylate/2-ethylhexyl acrylate), and the surfactant comprises a polyethylene glycol fatty acid ester or a polyoxyethylene sorbitan fatty acid ester.Type: GrantFiled: December 18, 2015Date of Patent: November 13, 2018Assignee: HISAMITSU PHARMACEUTICAL CO., INC.Inventors: Keiichiro Tsurushima, Yasuhisa Kose, Takaaki Yoshinaga
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Publication number: 20180015049Abstract: Disclosed is an adhesive patch having a support and an adhesive agent layer laminated on the support, wherein the support consists of spunlace nonwoven fabric, the adhesive agent layer comprises an SIS block copolymer and liquid paraffin, the adhesive patch has a first direction, which is a predetermined reference axis direction, and a second direction, which is orthogonal to the first direction, and a bending resistance in the first direction of the adhesive patch is 18 to 30 mm.Type: ApplicationFiled: February 5, 2016Publication date: January 18, 2018Inventors: Kentaro NAKASHIMA, Masahiro SATO, Yasuhisa KOSE, Takaaki YOSHINAGA
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Publication number: 20170348248Abstract: The present invention provides a gel patch comprising a base fabric, an adhesive layer, and a release liner in this order, wherein the adhesive layer contains a physiologically active substance, a water-soluble (meth)acrylic polymer, water, a surfactant, and poly(methyl acrylate/2-ethylhexyl acrylate), and the surfactant comprises a polyethylene glycol fatty acid ester or a polyoxyethylene sorbitan fatty acid ester.Type: ApplicationFiled: December 14, 2015Publication date: December 7, 2017Inventors: Keiichiro TSURUSHIMA, Yasuhisa KOSE, Takaaki YOSHINAGA
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Publication number: 20170348247Abstract: The present invention provides a gel patch comprising an adhesive mass layer on a backing fabric, wherein the adhesive mass layer contains glycol salicylate, a water-soluble polymer, water and glycerin, and the content of glycerin is 8 to 15 times the content of glycol salicylate on the basis of mass.Type: ApplicationFiled: December 14, 2015Publication date: December 7, 2017Inventors: Keiichiro TSURUSHIMA, Yasuhisa KOSE, Takaaki YOSHINAGA
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Publication number: 20160206569Abstract: A gel patch comprising a plaster layer on a support, the plaster layer comprising a mixture of at least a neutralized polyacrylic acid, a poly(methyl acrylate/2-ethylhexyl acrylate) emulsion, and water, wherein the poly(methyl acrylate/2-ethylhexyl acrylate) emulsion is an emulsion having an evaporation residue of 57 to 61% by heating at or above the boiling point of the medium and is present in an amount of at least 2.5 times and preferably at least 3 times the mass of the neutralized polyacrylic acid.Type: ApplicationFiled: August 21, 2014Publication date: July 21, 2016Inventors: Keiichiro TSURUSHIMA, Yasuhisa KOSE, Seiichiro TSURU, Shinji YAMASOTO, Takaaki YOSHINAGA
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Publication number: 20160175262Abstract: A gel patch includes a base fabric, an adhesive layer, and a release liner in this order, wherein the adhesive layer contains a physiologically active substance, a water-soluble (meth)acrylic polymer, water, a surfactant, and poly(methyl acrylate/2-ethylhexyl acrylate), and the surfactant comprises a polyethylene glycol fatty acid ester or a polyoxyethylene sorbitan fatty acid ester.Type: ApplicationFiled: December 18, 2015Publication date: June 23, 2016Inventors: Keiichiro TSURUSHIMA, Yasuhisa KOSE, Takaaki YOSHINAGA
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Publication number: 20160113877Abstract: An oral cavity patch comprising: a drug layer and an adhesive layer, wherein the drug layer comprises a drug-release-controlling agent consisting of at least one selected from the group consisting of a hydroxyalkyl alkyl cellulose, hydroxypropyl cellulose, a sodium carboxyalkyl cellulose, ethyl cellulose, hydrogenated castor oil, and a sucrose fatty acid ester.Type: ApplicationFiled: May 30, 2014Publication date: April 28, 2016Inventors: Takaaki YOSHINAGA, Yuko NAGASE, Toshihiro NAKANISHI
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Publication number: 20150231255Abstract: A transdermal absorption promoting agent for promoting percutaneous absorption of diclofenac sodium, comprising 1-menthyl glyceryl ether, a petroleum-based resin and/or a terpene-based resin, as well as a patch comprising it.Type: ApplicationFiled: June 18, 2013Publication date: August 20, 2015Applicant: HISAMITSU PHARMACEUTICAL CO., INC.Inventors: Takaaki Yoshinaga, Masahiro Sato, Akira Oishi, Yasuhisa Kose
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Publication number: 20140322300Abstract: A patch comprising a support layer and an adhesive agent layer, wherein the adhesive agent layer contains diclofenac or a pharmaceutically acceptable salt thereof, glycerin, butylene glycol, and poly(ethylene glycol)monooleate, and a mass ratio between the butylene glycol and the poly(ethylene glycol)monooleate (mass of butylene glycol:mass of poly(ethylene glycol)monooleate) is 1:1 to 4:1.Type: ApplicationFiled: December 6, 2012Publication date: October 30, 2014Applicant: Hisamitsu Pharmaceutical Co., Inc.Inventors: Masaru Kijima, Yasuhisa Kose, Takaaki Yoshinaga
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Patent number: 8734838Abstract: A pressure-sensitive adhesive composition which comprises three ingredients, i.e., polyisoprene, a styrene/isoprene/styrene copolymer, and solid polyisobutylene, in a proportion of (10-60)/(10-50)/(20-60) by weight and further contains a non-solid isobutylene polymer and a tackifier, characterized in that the amount of the non-solid isobutylene polymer is 1 to 30 pts. wt., excluding 30 pts. wt., per 100 pts. wt. of the sum of the three ingredients, i.e., the polyisoprene, styrene/isoprene/styrene copolymer, and solid polyisobutylene. When used in an adhesive patch for external use on the skin, the composition has satisfactory tackiness regardless of whether the temperature of the surrounding air is high or low, has excellent long-term storage stability, retains the necessary cohesive force, and does not unnecessarily irritate the skin.Type: GrantFiled: October 20, 2004Date of Patent: May 27, 2014Assignee: Hisamitsu Pharmaceutical Co., Inc.Inventors: Masato Shirai, Takaaki Yoshinaga, Masato Wakamatsu
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Publication number: 20090238860Abstract: Disclosed is an adhesive patch composed of an adhesive base agent and a supporting body wherein the adhesive base agent contains 3-30% by mass of a low-molecular-weight polyisobutylene and aluminum hydroxide and/or titanium oxide but not substantially containing water. Also disclosed is a skin irritation reducing agent used therefore. Further disclosed is an adhesive patch composed of a supporting body and an adhesive base agent which contains a thermoplastic rubber and a low-molecule-weight polyisobutylene but not substantially containing water. This adhesive patch is characterized in that the adhesive base agent further contains aluminum hydroxide and/or titanium oxide. Also disclosed is a skin irritation reducing agent used for such an adhesive patch.Type: ApplicationFiled: August 8, 2006Publication date: September 24, 2009Applicant: Hisamitsu Pharmaceutical Co., Inc.Inventors: Masakazu Saeki, Masato Wakamatsu, Takaaki Yoshinaga