Patents by Inventor Yuko Murao

Yuko Murao 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).

  • N-Sulfoalkylaniline derivatives
    Patent number: 4396714
    Abstract: N-sulfoalkylaniline derivatives in which at least one sulfoalkyl of 2 to 4 carbon atoms is attached to the nitrogen atom which are useful as dyestuff forming substances, a composition for determining the presence of peroxides using such compounds and the process for determination of peroxides using such compounds.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: August 2, 1983
    Assignee: Dojindo Laboratories
    Inventors: Masanobu Maeda, Yuko Murao