Patents by Inventor William N. Nakajima

William N. Nakajima 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).

  • Imidazolidinones in a durable press process
    Patent number: 4306872
    Abstract: This invention relates to imidazolidinones and the use of the same to impart durable press properties to cellulosic textile materials. More particularly, it relates to novel imidazolidinones which release environmentally acceptable amounts of formaldehyde during the application and curing on said cellulosic textile materials.
    Type: Grant
    Filed: January 17, 1980
    Date of Patent: December 22, 1981
    Assignee: American Cyanamid Company
    Inventors: William F. Herbes, Chi-Fei Ling, William N. Nakajima