Patents by Inventor Rupasree RaginiDas

Rupasree RaginiDas 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).

  • Electrochromic materials and electrochromic devices using the same
    Patent number: 7944597
    Abstract: Disclosed herein are novel electrochromic materials. The electrochromic materials are viologens into which an imidazole derivative is asymmetrically introduced. The electrochromic materials can be used in a variety of electrochromic displays, including electrochromic windows and smart windows. Also disclosed herein are electrochromic devices that use the electrochromic materials.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: May 17, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Rupasree RaginiDas, Chang-Ho Noh, Jin-Min Lee