Patents by Inventor Nozomi Kiga

Nozomi Kiga 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).

  • Stably dispersed magnetic viscous fluid
    Patent number: 6780343
    Abstract: The present invention is directed to a stabilized dispersion magnetorheological fluid comprising a magnetic particle, a dispersive medium and a dispersing agent wherein said dispersing agent is a polyether containing a polymer unit represented by the following general formula (1): in the formula, R1 represents a hydrogen atom or a hydrocarbon group of 1 to 22 carbon atoms; R2 represents a hydrogen atom, a hydrocarbon group of 1 to 22 carbon atoms which may optionally have a substituent, or —(AO)m-R3; R3 represents a hydrocarbon group of 1 to 22 carbon atoms which may optionally have a substituent; A represents an alkylene group of 1 to 3 carbon atoms; m represents an integer of 1 to 50; and A groups which number m may be the same or different.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: August 24, 2004
    Assignees: Bando Chemical Industries Ltd., Kao Corporation
    Inventors: Katsuhiko Hata, Nozomi Kiga, Seiichi Miyanaga
  • Stably dispersed magnetic viscous fluid
    Publication number: 20030006395
    Abstract: The present invention is directed to a stabilized dispersion magnetorheological fluid comprising a magnetic particle, a dispersive medium and a dispersing agent
    Type: Application
    Filed: May 1, 2002
    Publication date: January 9, 2003
    Inventors: Katsuhiko Hata, Nozomi Kiga, Seiichi Miyanaga