Abstract: A method of measuring an absorbed dose of ionizing radiation using a measuring device that bears an integral identification mark, comprising the steps of: providing a support; disposing on the support a first region capable of measuring an absorbed dose of ionizing radiation; disposing on the support a second region that bears integral identification mark; exposing at least the first region to a dose of ionizing radiation; and reading the signal from the first region.
Type:
Grant
Filed:
November 27, 2001
Date of Patent:
May 17, 2005
Assignee:
Eastman Kodak Company
Inventors:
David J. Steklenski, Michael T. Wolf, Wayne K. Shaffer, James H. Griggs
Abstract: A method and apparatus which forms a desired toner image on a receiver are disclosed. The method comprises transferring marking toner particles from an intermediate transfer member to a receiver in the presence of an electric field which urges the marking toner particles toward said receiver. When transferring the marking toner particles to the intermediate transfer member, the surface of the intermediate transfer member contacts non-marking toner particles in some areas which receive marking toner. The marking toner comprises toner particles having transfer assisting particles adhering to the surfaces of the toner particles, said transfer assisting particles having a number average diameter of less than 0.4 .mu.m.
Type:
Grant
Filed:
December 14, 1995
Date of Patent:
August 11, 1998
Assignee:
Eastman Kodak Company
Inventors:
Thomas Nataniel Tombs, John Walter May, Earl Gregory Gomes
Abstract: There is provided a toner composition which comprises a binder and a colorant, wherein said binder comprisesa copolymer of a vinyl aromatic monomer; a second monomer selected from the group consisting of conjugated diene monomers or acrylate monomers selected from the group consisting of alkyl acrylate monomers and alkyl methacrylate monomers; a third monomer which is a crosslinking agent; a fourth monomer which is an adhesion promoting vinyl monomer containing a hydroxyl group; and a fifth monomer which is a charge control vinyl monomer containing an amine group. In a preferred embodiment, the binder further comprises the acid form of an amino acid soap which is the salt of an alkyl sarcosine having an alkyl group which contains from about 10 to about 20 carbon atoms. In additional preferred embodiments, the toner compositions of the invention further include a charge control agent. In other preferred embodiments, the toner compositions of the invention are used with a carrier.
Type:
Grant
Filed:
January 6, 1997
Date of Patent:
July 21, 1998
Assignees:
Eastman Kodak Company, Goodyear Tire & Rubber Company
Inventors:
Thomas A. Jadwin, Dinesh Tyagi, Gary Lee Burroway