Patents by Inventor Seijiro Yama
Seijiro Yama 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: 11491116Abstract: An adhesive patch comprising: a support; at least a pressure-sensitive adhesive layer provided on the support; and a release liner attached on the pressure-sensitive adhesive layer so as to cover the surface of the pressure-sensitive adhesive layer, in which the support is a 3D patterned sheet characterized in that a plurality of protruded lines and recessed lines parallelly and linearly extending are formed inside and outside lines in a plurality of figures partitioned by the lines, walls of the protruded lines and recessed lines in some of the figures are formed to be inclined by different inclination angles with respect to a base part, and the protruded lines have different heights from the base part, serving as physical parameters of the protruded lines and recessed lines, toward a predetermined direction in the sheet.Type: GrantFiled: March 16, 2016Date of Patent: November 8, 2022Assignee: LEAD CHEMICAL CO., LTD.Inventors: Takayasu Matsuzawa, Seijiro Yama, Naoki Murai
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Publication number: 20190046464Abstract: An adhesive patch comprising: a support; at least a pressure-sensitive adhesive layer provided on the support; and a release liner attached on the pressure-sensitive adhesive layer so as to cover the surface of the pressure-sensitive adhesive layer, in which the support is a 3D patterned sheet characterized in that a plurality of protruded lines and recessed lines parallelly and linearly extending are formed inside and outside lines in a plurality of figures partitioned by the lines, walls of the protruded lines and recessed lines in some of the figures are formed to be inclined by different inclination angles with respect to a base part, and the protruded lines have different heights from the base part, serving as physical parameters of the protruded lines and recessed lines, toward a predetermined direction in the sheet.Type: ApplicationFiled: March 16, 2016Publication date: February 14, 2019Applicant: LEAD CHEMICAL CO., LTD.Inventors: Takayasu MATSUZAWA, Seijiro YAMA, Naoki MURAI
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Patent number: 9132100Abstract: The present invention is directed to a patch containing a non-steroidal anti-inflammatory drug including an adhesive layer composed of a transdermal preparation on a support, the transdermal preparation including a) 10 to 40% by weight of a nonaqueous base material based on the total weight of the transdermal preparation, b) 1 to 10% by weight of a non-steroidal anti-inflammatory drug based on the total weight of the transdermal preparation, and c) a polyethylene glycol component composed of 0.3 to 5% by weight of a low molecular weight polyethylene glycol based on the total weight of the transdermal preparation, and 1 to 10% by weight of a high molecular weight polyethylene glycol based on the total weight of the transdermal preparation.Type: GrantFiled: December 4, 2012Date of Patent: September 15, 2015Assignee: Reckitt Benckiser Healthcare International LimitedInventors: Naoki Murai, Seijiro Yama
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Publication number: 20140335151Abstract: The present invention is directed to a patch containing a non-steroidal anti-inflammatory drug including an adhesive layer composed of a transdermal preparation on a support, the transdermal preparation including a) 10 to 40% by weight of a non-aqueous base material based on the total weight of the transdermal preparation, b) 1 to 10% by weight of a non-steroidal anti-inflammatory drug based on the total weight of the transdermal preparation, and c) a polyethylene glycol component composed of 0.3 to 5% by weight of a low molecular weight polyethylene glycol based on the total weight of the transdermal preparation, and 1 to 10% by weight of a high molecular weight polyethylene glycol based on the total weight of the transdermal preparation.Type: ApplicationFiled: December 4, 2012Publication date: November 13, 2014Inventors: Naoki Murai, Seijiro Yama
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Patent number: 8568770Abstract: There is provided an adhesive preparation containing 5-methyl-1-phenyl-2-(1H)-pyridone. The adhesive preparation is a 5-methyl-1-phenyl-2-(1H)-pyridone-containing adhesive preparation including an active medicinal ingredient-containing layer, characterized in that the active medicinal ingredient-containing layer contains an lipophilic base, a dissolving agent (except glycerin and a medium-chain aliphatic acid triglyceride), and 5-methyl-1-phenyl-2-(1H)-pyridone or medically acceptable salts thereof.Type: GrantFiled: November 20, 2009Date of Patent: October 29, 2013Assignee: Lead Chemical Co., Ltd.Inventors: Takayasu Matsuzawa, Tamaki Horiuchi, Seijiro Yama, Sunao Takeuchi, Makoto Takeuchi
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Patent number: 8287900Abstract: There is provided a medicated patch including 5-methyl-1-phenyl-2-(1H)-pyridone. A medicated patch comprising a percutaneously absorbable preparation layer, wherein the percutaneously absorbable preparation layer includes 5-methyl-1-phenyl-2-(1H)-pyridone or a pharmaceutically acceptable salt thereof as an active component, a dissolving agent and an aqueous base material (or a rubber-type base material), and the active component is contained in an amount of 0.1 to 30 mass % relative to the total amount of the percutaneously absorbable preparation layer.Type: GrantFiled: May 26, 2008Date of Patent: October 16, 2012Assignees: Lead Chemical Co., Ltd., Shionogi & Co., Ltd.Inventors: Takayasu Matsuzawa, Tamaki Horiuchi, Seijiro Yama, Tetsukazu Hamamoto, Sunao Takeuchi, Daisuke Ichimatsu
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Patent number: 8076368Abstract: A percutaneous absorption type cerebral protective agent containing as an active ingredient, 0.1 to 30 percent by mass of 3-methyl-1-phenyl-2-pyrazolin-5-one represented by the following formula: or a medically acceptable salt thereof in a base; a use of the compound as an active ingredient for the manufacture of a percutaneous absorption type pharmaceutical composition for protecting brain; and a method of protecting brain comprising administering to a patient the pharmaceutical composition as an active ingredient.Type: GrantFiled: November 12, 2003Date of Patent: December 13, 2011Assignee: Lead Chemical Co., Ltd,Inventors: Jun Mori, Tamaki Horiuchi, Seijiro Yama, Hitomi Waki, Shingo Shimada, Hitomi Hashitani
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Publication number: 20110293670Abstract: There is provided an adhesive preparation containing 5-methyl-1-phenyl-2-(1H)-pyridone. The adhesive preparation is a 5-methyl-1-phenyl-2-(1H)-pyridone-containing adhesive preparation including an active medicinal ingredient-containing layer, characterized in that the active medicinal ingredient-containing layer contains an lipophilic base, a dissolving agent (except glycerin and a medium-chain aliphatic acid triglyceride), and 5-methyl-1-phenyl-2-(1H)-pyridone or medically acceptable salts thereof.Type: ApplicationFiled: November 20, 2009Publication date: December 1, 2011Applicants: SHIONOGI & CO., LTD., LEAD CHEMICAL CO., LTD.Inventors: Takayasu Matsuzawa, Tamaki Horiuchi, Seijiro Yama, Sunao Takeuchi, Makoto Takeuchi
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Publication number: 20100119584Abstract: There is provided a medicated patch including 5-methyl-1-phenyl-2-(1H)-pyridone. A medicated patch comprising a percutaneously absorbable preparation layer, wherein the percutaneously absorbable preparation layer includes 5-methyl-1-phenyl-2-(1H)-pyridone or a pharmaceutically acceptable salt thereof as an active component, a dissolving agent and an aqueous base material (or a rubber-type base material), and the active component is contained in an amount of 0.1 to 30 mass % relative to the total amount of the percutaneously absorbable preparation layer.Type: ApplicationFiled: May 26, 2008Publication date: May 13, 2010Applicants: Lead Chemical Co., Ltd., Shionogi & Co., Ltd.Inventors: Takayasu Matsuzawa, Tamaki Horiuchi, Seijiro Yama, Tetsukazu Hamamoto, Sunao Takeuchi, Daisuke Ichimatsu
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Publication number: 20070148217Abstract: A percutaneous absorption type cow protective agent containing as an active ingredient, 0.Type: ApplicationFiled: November 12, 2003Publication date: June 28, 2007Applicant: LEAD CHEMICAL CO. LTD.Inventors: Jun Mori, Tamaki Horiuchi, Seijiro Yama, Hitomi Waki, Shingo Shimada, Hitomi Hashitani
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Publication number: 20050266062Abstract: The present invention relates to a percutaneous absorption preparation (which may also be in the form of an adhesive preparation) containing, as an active ingredient, 0.1 to 30 percent by mass of 3-methyl-1-phenyl-2-pyrazolin-5-one represented by the following formula: or a medically acceptable salt thereof in an appropriate base such as an aqueous base or a rubber base. This preparation (or adhesive preparation) is an excellent percutaneous absorption preparation (or percutaneous absorption adhesive preparation) which has good percutaneous absorbability of the active ingredient and causes little skin irritation.Type: ApplicationFiled: November 5, 2002Publication date: December 1, 2005Applicant: LEAD CH EMICAL CO., LTD.Inventors: Jun Mori, Tamaki Horiuchi, Seijiro Yama, Hitomi Waki, Shingo Shimada, Hitomi Hashitani