Patents by Inventor Seiichiro Tsuru
Seiichiro Tsuru 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: 11903915Abstract: The present invention provides a gel patch having a paste layer on a support, wherein the paste layer comprising ketoprofen or a pharmaceutically acceptable salt thereof, propylene glycol, 1-menthol, and water, wherein the mass of propylene glycol in the paste layer is 3-fold the mass of ketoprofen or less, and wherein the content of 1-menthol based on a total mass of the paste layer is 0.1 to 0.5 mass %.Type: GrantFiled: February 13, 2020Date of Patent: February 20, 2024Assignee: HISAMITSU PHARMACEUTICAL CO., INC.Inventors: Tatsuya Sakakura, Satoshi Kimura, Seiichiro Tsuru
-
Publication number: 20220105060Abstract: The present invention provides a gel patch having a paste layer on a support, wherein the paste layer comprising ketoprofen or a pharmaceutically acceptable salt thereof, propylene glycol, 1-menthol, and water, wherein the mass of propylene glycol in the paste layer is 3-fold the mass of ketoprofen or less, and wherein the content of 1-menthol based on a total mass of the paste layer is 0.1 to 0.5 mass %.Type: ApplicationFiled: February 13, 2020Publication date: April 7, 2022Inventors: Tatsuya SAKAKURA, Satoshi KIMURA, Seiichiro TSURU
-
Publication number: 20210154152Abstract: A method for producing a gel patch comprising an adhesive mass layer on a backing fabric, comprising a step of applying a composition comprising a physiologically active substance, a water-soluble polymer, glycerin, and water to the backing fabric to form the adhesive mass layer, wherein a loss tangent of the composition in dynamic viscoelasticity measurement at 1 Hz at a time of application to the backing fabric is 0.75 to 1.Type: ApplicationFiled: February 4, 2021Publication date: May 27, 2021Inventors: Seiichiro TSURU, Masayoshi MAKI
-
Patent number: 10940121Abstract: A method for producing a gel patch comprising an adhesive mass layer on a backing fabric, comprising a step of applying a composition comprising a physiologically active substance, a water-soluble polymer, glycerin, and water to the backing fabric to form the adhesive mass layer, wherein a loss tangent of the composition in dynamic viscoelasticity measurement at 1 Hz at a time of application to the backing fabric is 0.75 to 1.Type: GrantFiled: February 17, 2016Date of Patent: March 9, 2021Assignee: HISAMITSU PHARMACEUTICAL CO., INC.Inventors: Seiichiro Tsuru, Masayoshi Maki
-
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
-
Publication number: 20180036255Abstract: A method for producing a gel patch comprising an adhesive mass layer on a backing fabric, comprising a step of applying a composition comprising a physiologically active substance, a water-soluble polymer, glycerin, and water to the backing fabric to form the adhesive mass layer, wherein a loss tangent of the composition in dynamic viscoelasticity measurement at 1 Hz at a time of application to the backing fabric is 0.75 to 1.Type: ApplicationFiled: February 17, 2016Publication date: February 8, 2018Inventors: Seiichiro TSURU, Masayoshi MAKI
-
Patent number: 9707194Abstract: The invention provides a gel patch comprising a support and an adhesive layer on the support, wherein the adhesive layer comprises 1.5 to 2.5 mass % of ketoprofen, 1.5 to 2.5 mass % of 4-tert-butyl-4?-methoxydibenzoylmethane and 12 to 18 mass % of propylene glycol, based on the total mass of the adhesive layer.Type: GrantFiled: February 26, 2015Date of Patent: July 18, 2017Assignee: HISAMITSU PHARMACEUTICAL CO., INC.Inventors: Seiichiro Tsuru, Masayoshi Maki, Shinji Yamasoto, Takaaki Terahara
-
Publication number: 20160361281Abstract: The invention provides a gel patch comprising a support and an adhesive layer on the support, wherein the adhesive layer comprises 1.5 to 2.5 mass % of ketoprofen, 1.5 to 2.5 mass % of 4-tert-butyl-4?-methoxydibenzoylmethane and 12 to 18 mass % of propylene glycol, based on the total mass of the adhesive layer.Type: ApplicationFiled: February 26, 2015Publication date: December 15, 2016Inventors: Seiichiro TSURU, Masayoshi MAKI, Shinji YAMASOTO, Takaaki TERAHARA
-
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
-
Patent number: 8920831Abstract: A lidocaine-containing hydrogel patch comprising: a support layer; and a adhesive layer stacked on a surface of the support layer, wherein the adhesive layer comprises at least one selected from the group consisting of lidocaine and pharmaceutically acceptable salts thereof, a total content of the lidocaine and the pharmaceutically acceptable salts thereof is 3 to 8% by mass relative to an entire mass of the adhesive layer, the adhesive layer further comprises oleic acid in an amount of 0.3 to 1% by mass relative to the entire mass of the adhesive layer, and a pH of the adhesive layer is 6.8 to 7.4.Type: GrantFiled: June 13, 2012Date of Patent: December 30, 2014Assignee: Hisamitsu Pharmaceutical Co., Inc.Inventors: Junichi Kubo, Seiichiro Tsuru, Keiichiro Tsurushima, Shinji Yamasoto
-
Publication number: 20140141056Abstract: A lidocaine-containing hydrogel patch comprising: a support layer; and a adhesive layer stacked on a surface of the support layer, wherein the adhesive layer comprises at least one selected from the group consisting of lidocaine and pharmaceutically acceptable salts thereof, a total content of the lidocaine and the pharmaceutically acceptable salts thereof is 3 to 8% by mass relative to an entire mass of the adhesive layer, the adhesive layer further comprises oleic acid in an amount of 0.3 to 1% by mass relative to the entire mass of the adhesive layer, and a pH of the adhesive layer is 6.8 to 7.4.Type: ApplicationFiled: June 13, 2012Publication date: May 22, 2014Applicant: Hisamitsu Pharmaceutical Co., Inc.Inventors: Junichi Kubo, Seiichiro Tsuru, Keiichiro Tsurushima, Shinji Yamasoto
-
Patent number: 7998590Abstract: An adhesive article comprising a backing and an adhesive layer disposed on at least one side of the backing, wherein the adhesive layer is formed from an adhesive base that contains substantially no gelatin and does contain readily soluble agar.Type: GrantFiled: April 27, 2005Date of Patent: August 16, 2011Assignee: Hisamitsu Pharmaceutical Co., Inc.Inventors: Seiichiro Tsuru, Tomoyuki Hinotani, Tetsurou Hinotani, legal representative, Akiko Hinotani, legal representative, Masatoshi Kita
-
Publication number: 20100217170Abstract: A plaster including a pressure-sensitive adhesive layer containing a readily dissolvable agar and at least one additive selected from the group consisting of polyacrylamides, polyvinyl alcohols, polyvinyl pyrrolidones, sodium alginate, ammonium alginate, carboxymethylcelluloses, sodium carboxymethylcelluloses, methylcelluloses, gum arabics, tragacanth gums, and xanthene rubbers, is provided.Type: ApplicationFiled: September 14, 2006Publication date: August 26, 2010Inventors: Seiichiro Tsuru, Tomoyuki Hinotani
-
Publication number: 20070231591Abstract: An adhesive article comprising a backing and an adhesive layer disposed on at least one side of the backing, wherein the adhesive layer is formed from an adhesive base that contains substantially no gelatin and does contain readily soluble agar.Type: ApplicationFiled: April 27, 2005Publication date: October 4, 2007Inventors: Seiichiro Tsuru, Tomoyuki Hinotani, Tetsurou Hinotani, Masatoshi Kita
-
Patent number: 6432431Abstract: A steroid-containing gel patch containing a steroid as an effective ingredient at 0.005 to 0.05% by weight, crotamiton as a stabilizer at 15% by weight or less and a surfactant in a base, where the amount of the crotamiton blended being 200 to 3000-fold the weight of the steroid blended and the amount of the surfactant blended being {fraction (1/20)} to ⅕-fold the weight of the crotamiton blended.Type: GrantFiled: January 10, 2001Date of Patent: August 13, 2002Assignee: Hisamitsu Pharmaceutical Co., Inc.Inventors: Kazunori Muta, Seiichiro Tsuru, Taro Yamahata