Patents by Inventor Risa Ikoshi

Risa Ikoshi 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).

  • Softener composition
    Patent number: 8778865
    Abstract: The present invention provides the softener composition containing the specific quaternary ammonium salts (I) and (II) each having a bis(polyalkoxyalkanol) structure, represented by the formulae (I) and (II) respectively, at a weight ratio of (I):(II) of 50.1:49.9 to 99.99:0.01.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: July 15, 2014
    Assignee: Kao Corporation
    Inventors: Risa Ikoshi, Makoto Kubo, Takaya Sakai
  • Softener composition comprising ethoxylated esterquats
    Patent number: 8497235
    Abstract: The present invention provides a softener composition containing a specific bis(polyalkoxyalkanol) type quaternary ammonium salt represented by formula (I): [wherein R1 and R2 may be the same as or different from each other and represent a hydrocarbon group having 11 to 23 carbon atoms, R3 and R4 may be the same as or different from each other and represent a hydrocarbon group having 1 to 4 carbon atoms which may have a hydroxyl group, k and l may be the same as or different from each other and represent an integer of 5 to 10 and X? represents an anion.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: July 30, 2013
    Assignee: Kao Corporation
    Inventors: Risa Ikoshi, Takaya Sakai, Makoto Kubo
  • SOFTENER COMPOSITION
    Publication number: 20120329702
    Abstract: The present invention provides the softener composition containing the specific quaternary ammonium salts (I) and (II) each having a bis(polyalkoxyalkanol) structure, represented by the formulae (I) and (II) respectively, at a weight ratio of (I):(II) of 50.1:49.9 to 99.99:0.01.
    Type: Application
    Filed: March 8, 2011
    Publication date: December 27, 2012
    Applicant: KAO CORPORATION
    Inventors: Risa Ikoshi, Makoto Kubo, Takaya Sakai
  • SOFTENER COMPOSITION
    Publication number: 20110263476
    Abstract: The present invention provides a softener composition containing a specific bis(polyalkoxyalkanol) type quaternary ammonium salt represented by formula (I): [wherein R1 and R2 may be the same as or different from each other and represent a hydrocarbon group having 11 to 23 carbon atoms, R3 and R4 may be the same as or different from each other and represent a hydrocarbon group having 1 to 4 carbon atoms which may have a hydroxyl group, k and l may be the same as or different from each other and represent an integer of 5 to 10 and X? represents an anion.
    Type: Application
    Filed: December 9, 2009
    Publication date: October 27, 2011
    Applicant: KAO CORPORATION
    Inventors: Risa Ikoshi, Takaya Sakai, Makoto Kubo