Patents by Inventor Eiko Kosugi

Eiko Kosugi 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: 10130610
    Abstract: In a pharmaceutical composition for external use containing a compound such as luliconazole and/or a salt thereof in an amount of 5% by mass or more, comprised is/are acetone, a polyoxyethylene alkyl (having 8 to 30 carbon atoms) ether, and/or a polyoxyethylene alkenyl (having 8 to 30 carbon atoms) ether. Provided is a preparation using a solvent other than crotamiton, propylene carbonate, and N-methyl-2-pyrrolidone as a solvent for solubilization and steric stabilization and having the following properties: 1) when a compound represented by the general formula (1) and/or a salt thereof has a stereoisomer, the amount of the stereoisomer of the compound and/or a salt thereof produced under a preservation condition of 60° C. for 3 weeks is 1% by mass or less with respect to the total mass of the compound and/or a salt thereof at the beginning of preservation; 2) the preparation is in a clear liquid state when preserved at a constant temperature of 20° C.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: November 20, 2018
    Assignees: Pola Pharma Inc., Nihon Nohyaku Co., Ltd.
    Inventors: Hirokazu Kobayashi, Eiko Kosugi, Nobuo Kubota
  • Patent number: 9050271
    Abstract: In a pharmaceutical composition for external use containing a compound such as luliconazole and/or a salt thereof, comprised are a higher alcohol which is in a liquid state at 1 atm and 25° C. and/or a diester of a dibasic acid, provided that a diester carbonate is excluded, and a polyoxyethylene alkyl ether and/or a polyoxyethylene alkenyl ether. Provided is a preparation using a solvent other than crotamiton, propylene carbonate, and N-methyl-2-pyrroridone as a solvent for solubilization and steric stabilization and having the following properties: 1) when a compound represented by the general formula (1) and/or a salt thereof has a stereoisomer, the amount of the stereoisomer of the compound and/or a salt thereof produced under a preservation condition of 60 degrees C. for 3 weeks is 1% by mass or less with respect to the total mass of the compound and/or a salt thereof at the beginning of preservation; 2) the preparation is in a clear liquid state when preserved at a constant temperature of 20° C.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: June 9, 2015
    Assignees: POLA PHARMA INC., NIHON NOHYAKU CO., LTD.
    Inventors: Hirokazu Kobayashi, Eiko Kosugi, Nobuo Kubota
  • Publication number: 20130011351
    Abstract: In a pharmaceutical composition for external use containing a compound such as luliconazole and/or a salt thereof in an amount of 5% by mass or more, comprised is/are acetone, a polyoxyethylene alkyl (having 8 to 30 carbon atoms) ether, and/or a polyoxyethylene alkenyl (having 8 to 30 carbon atoms) ether. Provided is a preparation using a solvent other than crotamiton, propylene carbonate, and N-methyl-2-pyrrolidone as a solvent for solubilization and steric stabilization and having the following properties: 1) when a compound represented by the general formula (1) and/or a salt thereof has a stereoisomer, the amount of the stereoisomer of the compound and/or a salt thereof produced under a preservation condition of 60° C. for 3 weeks is 1% by mass or less with respect to the total mass of the compound and/or a salt thereof at the beginning of preservation; 2) the preparation is in a clear liquid state when preserved at a constant temperature of 20° C.
    Type: Application
    Filed: April 9, 2010
    Publication date: January 10, 2013
    Applicants: Pola Pharma Inc., Nihon Nohyaku Co., Ltd.
    Inventors: Hirokazu Kobayashi, Eiko Kosugi, Nobuo Kubota
  • Publication number: 20120022120
    Abstract: In a pharmaceutical composition for external use containing a compound such as luliconazole and/or a salt thereof, comprised are a higher alcohol which is in a liquid state at 1 atm and 25° C. and/or a diester of a dibasic acid, provided that a diester carbonate is excluded, and a polyoxyethylene alkyl ether and/or a polyoxyethylene alkenyl ether. Provided is a preparation using a solvent other than crotamiton, propylene carbonate, and N-methyl-2-pyrroridone as a solvent for solubilization and steric stabilization and having the following properties: 1) when a compound represented by the general formula (1) and/or a salt thereof has a stereoisomer, the amount of the stereoisomer of the compound and/or a salt thereof produced under a preservation condition of 60 degrees C. for 3 weeks is 1% by mass or less with respect to the total mass of the compound and/or a salt thereof at the beginning of preservation; 2) the preparation is in a clear liquid state when preserved at a constant temperature of 20° C.
    Type: Application
    Filed: April 9, 2010
    Publication date: January 26, 2012
    Applicants: Nihon Nohyaku Co., Ltd., Pola Pharma Inc.
    Inventors: Hirokazu Kobayashi, Eiko Kosugi, Nobuo Kubota
  • Publication number: 20120014893
    Abstract: In a pharmaceutical composition for external use containing a compound such as luliconazole and/or a salt thereof in an amount of 5% by mass or more, comprised is/are acetone, a polyoxyethylene alkyl (having 8 to 30 carbon atoms) ether, and/or a polyoxyethylene alkenyl (having 8 to 30 carbon atoms) ether. Provided is a preparation using a solvent other than crotamiton, propylene carbonate, and N-methyl-2-pyrrolidone as a solvent for solubilization and steric stabilization and having the following properties: 1) when a compound represented by the general formula (1) and/or a salt thereof has a stereoisomer, the amount of the stereoisomer of the compound and/or a salt thereof produced under a preservation condition of 60° C. for 3 weeks is 1% by mass or less with respect to the total mass of the compound and/or a salt thereof at the beginning of preservation; 2) the preparation is in a clear liquid state when preserved at a constant temperature of 20° C.
    Type: Application
    Filed: April 9, 2010
    Publication date: January 19, 2012
    Applicant: Pola Pharma Inc.
    Inventors: Hirokazu Kobayashi, Eiko Kosugi, Nobuo Kubota