Patents by Inventor Robertha Caroline Howell

Robertha Caroline Howell 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).

  • Publication number: 20140292930
    Abstract: A method for forming an ink jet printhead comprises processing an epoxy adhesive such that negative effects from physical contact with particular inks are reduced or eliminated. Conventional adhesives processed using conventional techniques are known to gain weight, swell, and/or oxidize when exposed to certain inks such as ultraviolet inks and pigmented inks. An embodiment of the present teachings can include processing of an adhesive including a processes a particular adhesive comprising a cresol novolac resin and a dicydiandiamide curing agent using a particular process, such that the resulting epoxy adhesive is suitable for printhead applications.
    Type: Application
    Filed: April 1, 2013
    Publication date: October 2, 2014
    Applicant: XEROX CORPORATION
    Inventors: Yanjia Zuo, Pratima Gattu Naga Rao, Mandakini Kanungo, Hong Zhao, Mark A. Cellura, Robertha Caroline Howell, Santokh S. Badesha, John R. Andrews