Patents by Inventor Kevin A. Arthur

Kevin A. Arthur 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).

  • Electrostatic charge developing toner
    Patent number: 7429441
    Abstract: The present invention provides an electrostatic charge developing toner which uses a ?-type copper phthalocyanine pigment that has a BET specific surface area of 90 m2/g or greater as determined by the nitrogen adsorption method.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: September 30, 2008
    Assignee: Sun Chemical Corporation
    Inventors: Kevin A. Arthur, George H. Robertson, Seiji Funakura
  • Treatment of high performance pigments
    Patent number: 6926768
    Abstract: A pigment's etheramine sulfonic acid salt is described. Also described is a method for enhancing the performance of a pigment composition containing an organic pigment, comprising enhancing the dispersion of said pigment by adding to 100 parts of said pigment about 1 to 40 parts of a pigment's etheramine sulfonic acid salt.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: August 9, 2005
    Assignee: Sun Chemical Corporation
    Inventors: Kevin A. Arthur, George H. Robertson, George McLaren, Stanislav G. Vilner, Ronald R. Forbes
  • Treatment of high performance pigments
    Publication number: 20040200387
    Abstract: A pigment's etheramine sulfonic acid salt is described. Also described is a method for enhancing the performance of a pigment composition containing an organic pigment, comprising enhancing the dispersion of said pigment by adding to 100 parts of said pigment about 1 to 40 parts of a pigment's etheramine sulfonic acid salt.
    Type: Application
    Filed: April 14, 2003
    Publication date: October 14, 2004
    Inventors: Kevin A. Arthur, George H. Robertson, George McLaren, Stanislav G. Vilner, Ronald R. Forbes
  • Electrostatic charge developing toner
    Publication number: 20040185362
    Abstract: The present invention provides an electrostatic charge developing toner which uses a &bgr;-type copper phthalocyanine pigment that has a BET specific surface area of 90 m2/g or greater as determined by the nitrogen adsorption method.
    Type: Application
    Filed: May 17, 2004
    Publication date: September 23, 2004
    Inventors: Kevin A. Arthur, George H. Robertson, Seiji Funakura
  • Treatment of high performance pigments with etheramine dispersing salts
    Patent number: 6471764
    Abstract: An etheramine pigment dispersing salt for enhancing the dispersion performance of an organic pigment composition adding to 100 parts by weight of pigment about 1 to 40 parts by weight of an etheramine pigment dispersing salt.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: October 29, 2002
    Assignee: Sun Chemical Corporation
    Inventors: George H. Robertson, Kevin A. Arthur, Russell J. Schwartz, Stanislav Vilner, George McLaren