Patents by Inventor James F. Sobieski

James F. Sobieski 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).

  • Imaged electrostatic sheet delivery system
    Publication number: 20020088535
    Abstract: A method for adhering a graphic sheet having both electrostatic cling properties and adhesive to a display substrate. An image is printed an electrostatic printer, and the image transfer medium is then used as a carrier for applying the graphic sheet to the display substrate.
    Type: Application
    Filed: January 9, 2001
    Publication date: July 11, 2002
    Applicant: 3M Innovative Properties Company
    Inventors: Chih-Chung Hsu, Charles C. Lee, James F. Sobieski
  • Dielectric image release surface containing a high percent silicone composition and uses therefor
    Patent number: 6218021
    Abstract: The present invention discloses a high weight percent of silicone within the silicone-urea block polymer for use with or as a dielectric layer material for electrostatic printing. The high weight percent comprises between about 66 and about 94 weight percent.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: April 17, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: James F. Sobieski, Patricia J. A. Brandt, Thomas A. Speckhard
  • Electrophotographic copying apparatus and process
    Patent number: 4657371
    Abstract: An electrophotographic copying apparatus includes a copying cycle which always alternates development between two image areas to equalize wear along the length of its photosensitive belt and which eliminates a cleaning cycle after the final copy of a copying cycle to reduce belt revolutions. Also included is a combined charger/precleaner to reduce size and a light image mask to prevent unnecessary toning of the belt.
    Type: Grant
    Filed: June 19, 1986
    Date of Patent: April 14, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James F. Sobieski, Robert A. Muehlhausen
  • Electrophotographic copying apparatus and process
    Patent number: 4652114
    Abstract: An electrophotographic copying apparatus includes a copying cycle which always alternates development between two image areas to equalize wear along the length of its photosensitive belt and which eliminates a cleaning cycle after the final copy of a copying cycle to reduce belt revolutions. Also included is a combined charger/precleaner to reduce size and a light image mask to prevent unnecessary toning of the belt.
    Type: Grant
    Filed: June 2, 1986
    Date of Patent: March 24, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James F. Sobieski, Robert A. Muehlhausen
  • Electrophotographic copying apparatus and process
    Patent number: 4616922
    Abstract: An electrophotographic copying apparatus includes a copying cycle which always alternates development between two image areas to equalize wear along the length of its photosensitive belt and which eliminates a cleaning cycle after the final copy of a copying cycle to reduce belt revolutions. Also included is a combined charger/precleaner to reduce size and a light image mask to prevent unnecessary toning of the belt.
    Type: Grant
    Filed: April 5, 1985
    Date of Patent: October 14, 1986
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James F. Sobieski, Robert A. Muehlhausen