Patents by Inventor Andrew J. McClaren

Andrew J. McClaren 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).

  • System and method for measuring charge/mass and liquid toner conductivty contemporaneously
    Patent number: 7088932
    Abstract: A method measures the conductivity (?) of a liquid or paste electrophotographic toner by providing two parallel plane conductive plates with a uniform separation (d) between the plates to form a space between the plates; filling the space between the plates with liquid or paste electrophotographic toner; applying an alternating current voltage of at least 100V between the plates across the liquid or paste toner; measuring as data the current passing through an external component into the plates; adjusting the data to remove current contributions attributable to impurity ions; sending adjusted data to a processor; and determining the conductivity from the adjusted data.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: August 8, 2006
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Hsin Hsin Chou, William D. Edwards, Robert E. Brenner, Andrew J. McClaren