Patents by Inventor Peter J. Finn

Peter J. Finn 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).

  • Patent number: 4943517
    Abstract: An imaging process which comprises the steps of:(i) providing a first radiation sensitive element comprising a transparent base having coated thereon at least three imaging media each capable of forming a color image upon imagewise exposure and processing, each of said imaging media capable of forming a color image having a maximum sensitivity at a wavelength different from the wavelengths of the maximum sensitivity of the other imaging media capable of forming a color image and the wavelength of the maximum absorption of the color image formed by each imaging medium differing from the wavelength of the maximum absorption of the color image formed by the other imaging media by at least 40 nm;(ii) obtaining color separation information representative of the cyan, magneta and yellow and optionally black content of a color original, or electronically generated image,(iii) exposing said first radiation sensitive element of step (i) to at least three independently modulated sources of radiation, each source being
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: July 24, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Stephen R. Powers, Peter J. Finn, Michael G. Fisher
  • Patent number: 4824770
    Abstract: A process for producing a continuous tone color image comprising providing a light sensitive photographic element comprising a substrate bearing three imaging media coated thereon, said imaging media comprising:(1) an imaging medium capable of forming a yellow image upon imagewise exposure and processing,(2) an imaging medium capable of forming a magenta image upon imagewise exposure and processing,(3) an imaging medium capable of forming a cyan image upon imagewise exposure and processing,each imaging medium having a maximum spectral sensitivity at a wavelength different from that of the maximum spectral sensitivity of the other imaging media within the range 550 to 900 nm, the sensitivities at the wavelength of maximum spectral sensitivity of the media decreasing in order from the medium of shortest wavelength maximum spectral sensitivity to the medium of longest wavelength maximum spectral sensitivity, the difference in said sensitivities between the media of shortest and longest wavelength maximum spectra
    Type: Grant
    Filed: April 9, 1987
    Date of Patent: April 25, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Jonathan P. Kitchin, Stephen R. Powers, Keith A. Penfound, Peter J. Finn
  • Patent number: 4816378
    Abstract: An imaging process which comprises the steps of:(i) providing a first radiation sensitive element comprising a transparent base having coated thereon at least three imaging media each capable of forming a color image upon imagewise exposure and processing, each media having a maximum sensitivity at a wavelength different from of the other imaging media and the wavelength of the maximum absorption of the color image formed by each imaging medium differing from the other imaging media by at least 40 nm;(ii) obtaining color separation information representative of the cyan, magenta and yellow and optionally black content of a color original, or electronically generated image,(iii) exposing said first radiation sensitive element of step (i) to at least three independently modulated sources of radiation, such that a latent image representative of at least the cyan, magenta and yellow information of step (ii) is formed in individual color forming media;(iv) processing said exposed radiation sensitive element to pro
    Type: Grant
    Filed: April 13, 1987
    Date of Patent: March 28, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Stephen R. Powers, Peter J. Finn, Michael G. Fisher
  • Patent number: 4814827
    Abstract: A radiation-sensitive element for half tone color proofing adapted to be exposed by scanning with four independently modulated sources of radiation emitting at different wavelengths within the range 550 to 900 nm, the element comprising a substrate bearing at least four separate imaging media coated thereon, said imaging media including:(1) an imaging medium capable of forming a yellow image upon imagewise exposure and processing,(2) an imaging medium capable of forming a magenta image upon imagewise exposure and processing,(3) an imaging medium capable of forming a cyan image upon imagewise exposure and processing, and(4) an imaging medium capable of forming a black or a balancing black image upon imagewise exposure and processing,each imaging medium having a maximum spectral sensitivity at a wavelength different from that of the maximum sensitivity of the other imaging media such that after exposure and processing super-imposed yellow, magenta, cyan and black or balancing black images are formed, each image
    Type: Grant
    Filed: August 13, 1987
    Date of Patent: March 21, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Jonathan P. Kitchin, Stephen R. Powers, Keith A. Penfound, Peter J. Finn, Michael G. Fisher
  • Patent number: 4705745
    Abstract: A radiation-sensitive element for half tone color proofing adapted to be exposed by scanning with four independently modulated sources of radiation emitting at different wavelengths within the range 550 to 900 nm, the element comprising a substrate bearing at least four separate imaging media coated thereon, said imaging media including:(1) an imaging medium capable of forming a yellow image upon imagewise exposure and processing,(2) an imaging medium capable of forming a magenta image upon imagewise exposure and processing,(3) an imaging medium capable of forming a cyan image upon imagewise exposure and processing, and(4) an imaging medium capable of forming a black or a balancing black image upon imagewise exposure and processing,each imaging medium having a maximum spectral sensitivity at a wavelength different from that of the maximum sensitivity of the other imaging media such that after exposure and processing super-imposed yellow, magenta, cyan and black or balancing black images are formed, each image
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: November 10, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Jonathan P. Kitchin, Stephen R. Powers, Keith A. Penfound, Peter J. Finn, Michael G. Fisher