Donald L Korn Deceased3635 Palmyra Rd UNIT 20, Marion, NY 14505

4762998, Aug 9, 1988

May 12, 1987

7/048709

Anthony R. Lubinsky - Webster NY
James F. Owen - Rochester NY
Donald M. Korn - Penfield NY

Eastman Kodak Company - Rochester NY

G03C 516

2503272

An image recorded by a photostimulable phosphor image recording medium that is transparent (i. e. substantially non-scattering) to stimulating radiation is read out by scanning the stimulable phosphor with a beam of stimulating radiation of such power and at such a speed effective to completely discharge the photostimulable phosphor in a fraction of the beam spot diameter in the scanning direction, whereby the effective size of the scanning spot is smaller than the beam spot diameter, thereby increasing the resolution of the image signal in the scanning direction.

5400147, Mar 21, 1995

Apr 10, 1992

7/866389

Donald M. Korn - Penfield NY
Richard N. Blazey - Penfield NY

Eastman Kodak Company - Rochester NY

H04N 123
G01D 900
G01D 1510

358297

A multilevel halftone reproduction transparency medium and a method and system for reproducing images thereon. The transparency medium includes a substantially transparent carrier having first and second planar surfaces with ablative dye coatings thereon which are selected to render the medium substantially opaque in non-ablated areas, transparent in fully ablated areas, and semi-opaque in areas where one or the other of the coatings is ablated. A method and apparatus employ the medium to provide binary, trinary and quarternary gray levels in a hybrid halftone printing technique especially useful for printing radiographic images.

5839369, Nov 24, 1998

Apr 18, 1997

8/843522

Dilip K. Chatterjee - Rochester NY
Syamal K. Ghosh - Rochester NY
Donald M. Korn - Penfield NY

Eastman Kodak Company - Rochester NY

B41C 110

101467

Reusable lithographic printing members are prepared from a zirconia ceramic that is an alloy of ZrO. sub. 2 and a second oxide chosen from MgO, CaO, Y. sub. 2 O. sub. 3, Sc. sub. 2 O. sub. 3, a rare earth oxide or a combination of any of these. In use, a printing surface of the zirconia alloy ceramic is imagewise exposed to electromagnetic radiation such as from a laser under controlled conditions to provide localized "melting" of the zirconia in the exposed areas. Those areas are transformed from a hydrophilic to an oleophilic state or from an oleophilic to a hydrophilic state, thereby creating a lithographic printing surface which is hydrophilic in non-image areas and is oleophilic and thus capable of accepting printing ink in image areas. Such inked areas can then be used to transfer an image to a suitable substrate in lithographic printing. The printing members are directly laser-imageable as well as image erasable, and can include printing plates, printing cylinders, printing tapes and printing sleeves.

5870956, Feb 16, 1999

Jul 23, 1997

8/898944

Syamal Kumar Ghosh - Rochester NY
Dilip Kumar Chatterjee - Rochester NY
Donald Michael Korn - Penfield NY
Nicoletta Assaro Zongrone - Rochester NY
Mark Anthony Harris - Rochester NY

Eastman Kodak Company - Rochester NY

B41N 114

101453

Lithographic printing is carried out by a novel process utilizing a zirconia ceramic as a printing plate. In this process, the surface of the zirconia ceramic printing plate is imagewise exposed to radiation which transforms it from a hydrophilic to an oleophilic state or from an oleophilic to a hydrophilic state, thereby creating a lithographic printing surface which is hydrophilic in non-image areas and is oleophilic and thus capable of accepting printing ink in image areas. The zirconia ceramic printing plate utilized in this process is capable of extremely long printing runs, is especially well adapted for direct digital laser imaging using images that are electronically captured and digitally stored, and can be reused by erasing the image from the ceramic surface by thermally-activated oxidation or laser-assisted oxidation.

5743188, Apr 28, 1998

Dec 21, 1995

8/576178

Syamal Kumar Ghosh - Rochester NY
Dilip Kumar Chatterjee - Rochester NY
Donald Michael Korn - Penfield NY
Nicoletta Assaro Zongrone - Rochester NY
Mark Anthony Harris - Rochester NY

Eastman Kodak Company - Rochester NY

B41C 110

101467

Lithographic printing is carried out by a novel process utilizing a zirconia ceramic as a printing plate. In this process, the surface of the zirconia ceramic printing plate is imagewise exposed to radiation which transforms it from a hydrophilic to an oleophilic state or from an oleophilic to a hydrophilic state, thereby creating a lithographic printing surface which is hydrophilic in non-image areas and is oleophilic and thus capable of accepting printing ink in image areas. The zirconia ceramic printing plate utilized in this process is capable of extremely long printing runs, is especially well adapted for direct digital laser imaging using images that are electronically captured and digitally stored, and can be reused by erasing the image from the ceramic surface by thermally-activated oxidation or laser-assisted oxidation.