Patents by Inventor Mituru Sugiyama

Mituru Sugiyama 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).

  • Composition for external application
    Patent number: 7550135
    Abstract: The present invention relates to a composition for external application, a humectant and a skin barrier function reinforcing agent, each containing a diamide derivative represented by the following formula (1): (wherein, R1a and R1b are the same or different and each represents a C1-23 hydrocarbon group, R2a and R2b are the same or different and each represents a divalent C1-6 hydrocarbon group, R3s are the same or different and each represents a divalent C2-6 hydrocarbon group and n stands for 1 to 100). The composition for external application, humectant and skin barrier function reinforcing agent basically improve the water retaining ability and barrier functions of the horny layer, are excellent in miscibility and mixing stability and can be prepared efficiently at a low cost.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: June 23, 2009
    Assignee: Kao Corporation
    Inventors: Masahide Hoshino, Hiroaki Saito, Yoshiya Sugai, Mituru Sugiyama, Yoshinori Nishizawa, Yasushi Katayama
  • Composition for external application
    Patent number: 7528171
    Abstract: The present invention relates to a composition for external application, a humectant and a skin barrier function reinforcing agent, each containing a diamide derivative represented by the following formula (1): (wherein, R1a and R1b are the same or different and each represents a C1-23 hydrocarbon group, R2a and R2b are the same or different and each represents a divalent C1-6 hydrocarbon group, R3s are the same or different and each represents a divalent C2-6 hydrocarbon group and n stands for 1 to 100). The composition for external application, humectant and skin barrier function reinforcing agent basically improve the water retaining ability and barrier functions of the horny layer, are excellent in miscibility and mixing stability and can be prepared efficiently at a low cost.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: May 5, 2009
    Assignee: Kao Corporation
    Inventors: Masahide Hoshino, Hiroaki Saito, Yoshiya Sugai, Mituru Sugiyama, Yoshinori Nishizawa, Yasushi Katayama
  • Composition for external application
    Patent number: 7087646
    Abstract: The present invention relates to a composition for external application, a humectant and a skin barrier function reinforcing agent, each containing a diamide derivative represented by the following formula (1): (wherein, R1a and R1b are the same or different and each represents a C1-23 hydrocarbon group, R2a and R2b are the same or different and each represents a divalent C1-6 hydrocarbon group, R3s are the same or different and each represents a divalent C2-6 hydrocarbon group and n stands for 1 to 100). The composition for external application, humectant and skin barrier function reinforcing agent basically improve the water retaining ability and barrier functions of the horny layer, are excellent in miscibility and mixing stability and can be prepared efficiently at a low cost.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: August 8, 2006
    Assignee: Kao Corporation
    Inventors: Masahide Hoshino, Hiroaki Saito, Yoshiya Sugai, Mituru Sugiyama, Yoshinori Nishizawa, Yasushi Katayama
  • Composition for external application
    Publication number: 20050112082
    Abstract: The present invention relates to a composition for external application, a humectant and a skin barrier function reinforcing agent, each containing a diamide derivative represented by the following formula (1): (wherein, R1a and R1b are the same or different and each represents a C1-23 hydrocarbon group, R2a and R2b are the same or different and each represents a divalent C1-6 hydrocarbon group, R3s are the same or different and each represents a divalent C2-6 hydrocarbon group and n stands for 1 to 100). The composition for external application, humectant and skin barrier function reinforcing agent basically improve the water retaining ability and barrier functions of the horny layer, are excellent in miscibility and mixing stability and can be prepared efficiently at a low cost.
    Type: Application
    Filed: October 19, 2004
    Publication date: May 26, 2005
    Applicant: Kao Corporation
    Inventors: Masahide Hoshino, Hiroaki Saito, Yoshiya Sugai, Mituru Sugiyama, Yoshinori Nishizawa, Yasushi Katayama
  • Composition for external application
    Publication number: 20040122103
    Abstract: The present invention relates to a composition for external application, a humectant and a skin barrier function reinforcing agent, each containing a diamide derivative represented by the following formula (1): 1
    Type: Application
    Filed: December 9, 2003
    Publication date: June 24, 2004
    Applicant: Kao Corporation
    Inventors: Masahide Hoshino, Hiroaki Saito, Yoshiya Sugai, Mituru Sugiyama, Yoshinori Nishizawa, Yasushi Katayama
  • Composition for external application
    Publication number: 20030026818
    Abstract: The present invention relates to a composition for external application, a humectant and a skin barrier function reinforcing agent, each containing a diamide derivative represented by the following formula (1): 1
    Type: Application
    Filed: February 26, 2002
    Publication date: February 6, 2003
    Applicant: Kao Corporation
    Inventors: Masahide Hoshino, Hiroaki Saito, Yoshiya Sugai, Mituru Sugiyama, Yoshinori Nishizawa, Yasushi Katayama