Patents by Inventor Jehuda Greener

Jehuda Greener 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).

  • Publication number: 20060068128
    Abstract: A method of film fabrication is taught that uses a coating and drying apparatus to fabricate resin films suitable for optical applications. In particular, resin films are prepared by simultaneous application of multiple liquid layers to a moving carrier substrate having low surface energy. After solvent removal, the resin films are peeled from the sacrificial carrier substrate. Films prepared by the current invention exhibit good dimensional stability and low out-of-plane retardation.
    Type: Application
    Filed: September 30, 2004
    Publication date: March 30, 2006
    Inventors: Jehuda Greener, Charles Anderson, Marcus Bermel
  • Patent number: 6958365
    Abstract: The present invention relates to a method for making an open celled microcellular foam comprising providing at least one foamable polymer and a crosslinking agent in an extruder, injecting at least one blowing agent into said at least one foamable polymer and said crosslinking agent in said extruder, blending said blowing agent injected into said at least one foamable polymer and said crosslinking agent in said extruder, feeding said blended blowing agent, at least one foamable polymer and said crosslinking agent in said extruder to a die, and depressurizing said blended blowing agent, said at least one foamable polymer and said crosslinking agent.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: October 25, 2005
    Assignee: Eastman Kodak Company
    Inventors: Narasimharao Dontula, Jehuda Greener, Cathy A. Fleischer, Chul B. Park, Patrick C. Lee, Jin Wang, Hani E. Naguib
  • Patent number: 6942831
    Abstract: A high-CHDM PET-based support for an imaging element can be annealed relatively rapidly to achieve acceptable core-set and post-process curl properties. The fast annealing response of this material allows effective in-line annealing of the film support, yielding a more efficient manufacturing process with less annealing-induced defects in the imaging support.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: September 13, 2005
    Assignee: Eastman Kodak Company
    Inventors: Jehuda Greener, Beverly A. Contestable, Jeffrey R. Gillmor, YuanQiao Rao
  • Patent number: 6931206
    Abstract: This invention contemplates a prepackaged photographic unit containing a photographic element comprising a transparent polyester film support with improved tongue retrieval performance and acceptable cutting performance in photofinishing equipment.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: August 16, 2005
    Assignee: Eastman Kodak Company
    Inventors: Alfred B. Fant, Yuangiao Rao, Anthony L. Kaye, Jehuda Greener
  • Publication number: 20050176836
    Abstract: The present invention relates to a method for making an open celled microcellular foam comprising providing at least one foamable polymer and a crosslinking agent in an extruder, injecting at least one blowing agent into said at least one foamable polymer and said crosslinking agent in said extruder, blending said blowing agent injected into said at least one foamable polymer and said crosslinking agent in said extruder, feeding said blended blowing agent, at least one foamable polymer and said crosslinking agent in said extruder to a die, and depressurizing said blended blowing agent, said at least one foamable polymer and said crosslinking agent.
    Type: Application
    Filed: March 4, 2005
    Publication date: August 11, 2005
    Inventors: Narasimharao Dontula, Jehuda Greener, Cathy Fleischer, Chul Park, Patrick Lee, Jin Wang, Hani Naguib
  • Patent number: 6872501
    Abstract: The invention relates to a material comprising a sheet wherein said sheet comprises at least one layer comprising polyether polymeric antistat and thermally processable onium salt.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: March 29, 2005
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Thomas M. Laney, Jehuda Greener, Peter T. Aylward, Dinesh Tyagi
  • Publication number: 20050063690
    Abstract: This invention contemplates a prepackaged photographic unit containing a photographic element comprising a transparent polyester film support with improved tongue retrieval performance and acceptable cutting performance in photofinishing equipment.
    Type: Application
    Filed: September 22, 2003
    Publication date: March 24, 2005
    Inventors: Alfred Fant, Yuangiao Rao, Anthony Kaye, Jehuda Greener
  • Patent number: 6867927
    Abstract: Disclosed is a transparent polymeric film having a top and bottom surface comprising a plurality of complex lenses on at least one surface thereof and containing as its primary ingredient a polymer sufficient to impart to the film a light transmission of at least 92% based on a film thickness of 125 micrometers.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: March 15, 2005
    Assignee: Eastman Kodak Company
    Inventors: Robert P. Bourdelais, Cheryl J. Kaminsky, Jehuda Greener
  • Publication number: 20050026088
    Abstract: A high-CHDM PET-based support for an imaging element can be annealed relatively rapidly to achieve acceptable core-set and post-process curl properties. The fast annealing response of this material allows effective in-line annealing of the film support, yielding a more efficient manufacturing process with less annealing-induced defects in the imaging support.
    Type: Application
    Filed: August 1, 2003
    Publication date: February 3, 2005
    Inventors: Jehuda Greener, Beverly Contestable, Jeffrey Gillmor, YuanQiao Rao
  • Patent number: 6838165
    Abstract: The invention relates to a material comprising a web wherein said web comprises at least one surface layer comprising polyether polymeric antistat, extrudable polymer, and compatibilizer wherein said surface layer has a roughness of greater than 0.3 Ra.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: January 4, 2005
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Thomas M. Laney, Jehuda Greener, Jose L. Garcia, Peter T. Aylward
  • Publication number: 20040229968
    Abstract: The present invention relates to a method for making an open celled microcellular foam comprising providing at least one foamable polymer and a crosslinking agent in an extruder, injecting at least one blowing agent into said at least one foamable polymer and said crosslinking agent in said extruder, blending said blowing agent injected into said at least one foamable polymer and said crosslinking agent in said extruder, feeding said blended blowing agent, at least one foamable polymer and said crosslinking agent in said extruder to a die, and depressurizing said blended blowing agent, said at least one foamable polymer and said crosslinking agent.
    Type: Application
    Filed: May 13, 2003
    Publication date: November 18, 2004
    Inventors: Narasimharao Dontula, Jehuda Greener, Cathy A. Fleischer, Chul B. Park, Patrick C. Lee, Jin Wang, Hani E. Naguib
  • Publication number: 20040229966
    Abstract: The present invention relates to an imaging element comprising at least one image receiving layer and a support, wherein said image receiving layer comprises an open celled microcellular foam. The present invention also relates to an imaging element comprising at least one image receiving layer, an absorbing layer and a support, wherein the absorbing layer comprises an open celled microcellular foam.
    Type: Application
    Filed: May 13, 2003
    Publication date: November 18, 2004
    Applicant: Eastman Kodak Company
    Inventors: Narasimharao Dontula, Jehuda Greener, Cathy A. Fleischer
  • Patent number: 6797458
    Abstract: This invention relates to a poly(ethylene terephthalate)-based photographic multilayer film base having improved properties with regard to cutting and finishing operations compared to conventional PET film base. A specified amount of monomeric units derived from 1,4-cyclohexanedimethanol (CHDM) is used in at least two layers of the multilayer structure, such that the multilayer film base has a specified cutting related property.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: September 28, 2004
    Assignee: Eastman Kodak Company
    Inventors: YuanQiao Rao, Jehuda Greener, Yeh-Hung Lai, Dennis J. Massa
  • Publication number: 20040170934
    Abstract: The invention relates to a material comprising a web wherein said web comprises at least one surface layer comprising polyether polymeric antistat, extrudable polymer, and compatibilizer wherein said surface layer has a roughness of greater than 0.3 Ra.
    Type: Application
    Filed: March 11, 2004
    Publication date: September 2, 2004
    Inventors: Debasis Majumdar, Thomas M. Laney, Jehuda Greener, Jose L. Garcia, Peter T. Aylward
  • Publication number: 20040121272
    Abstract: This invention relates to a poly(ethylene terephthalate)-based photographic multilayer film base having improved properties with regard to cutting and finishing operations compared to conventional PET film base. A specified amount of monomeric units derived from 1,4-cyclohexanedimethanol (CHDM) is used in at least two layers of the multilayer structure, such that the multilayer film base has a specified cutting-related property.
    Type: Application
    Filed: December 20, 2002
    Publication date: June 24, 2004
    Applicant: Eastman Kodak Company
    Inventors: YuanQiao Rao, Jehuda Greener, Yeh-Hung Lai, Dennis J. Massa
  • Patent number: 6737226
    Abstract: A process for making polyester film base material comprising more than 65 mol % of 1,4-cyclohexanedimethanol (CHDM) of the total glycol component in the polyester material. The film base is prepared by sequentially carrying out the following steps: (a) casting a molten polyester resin in a machine direction onto a casting surface to form a continuous sheet, (b) drafting the sheet by stretching in the machine direction at a stretch ratio of from 2 to 4, and at a temperature ranging from 70° C. to 130° C., (c) tentering the sheet in the transverse direction by stretching at a stretch ratio of from 2 to 4, and at a temperature ranging from 70° C. to 130° C. to obtain a biaxially oriented film, (d) heat-setting the oriented film at an actual temperature of from 160° C. to 200° C., and (e) cooling the heat-set film without substantial detentering to obtain a biaxially oriented, heat-set polyester-based film having a cutting index of 1 to 1.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: May 18, 2004
    Assignee: Eastman Kodak Company
    Inventors: Yuanqiao Rao, Jehuda Greener, Michael R. Brickey
  • Publication number: 20040081928
    Abstract: A process for making polyester film base material comprising more than 65 mol % of 1,4-cyclohexanedimethanol (CHDM) of the total glycol component in the polyester material. The film base is prepared by sequentially carrying out the following steps: (a) casting a molten polyester resin in a machine direction onto a casting surface to form a continuous sheet, (b) drafting the sheet by stretching in the machine direction at a stretch ratio of from 2 to 4, and at a temperature ranging from 70° C. to 130° C., (c) tentering the sheet in the transverse direction by stretching at a stretch ratio of from 2 to 4, and at a temperature ranging from 70° C. to 130° C. to obtain a biaxially oriented film, (d) heat-setting the oriented film at an actual temperature of from 160° C. to 200° C., and (e) cooling the heat-set film without substantial detentering to obtain a biaxially oriented, heat-set polyester-based film having a cutting index of 1 to 1.
    Type: Application
    Filed: October 24, 2002
    Publication date: April 29, 2004
    Applicant: Eastman Kodak Company
    Inventors: Yuanqiao Rao, Jehuda Greener, Michael R. Brickey
  • Patent number: 6727052
    Abstract: This invention relates to a PET-based photographic multilayer film base having improved properties with regard to cutting, stiffness and post-process curl. In particular, the polyester film base comprises a biaxially-stretched multilayer film structure, in which layers a specified amount of monomeric units derived from 1,4-cyclohexanedimethanol (CHDM), sulfonic-acid-substituted aromatic dicarboxylic acid and poly(alkylene glycol) is present.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: April 27, 2004
    Assignee: Eastman Kodak Company
    Inventors: YuanQiao Rao, Jehuda Greener, Robert H. Fehnel, Michael R. Brickey
  • Patent number: 6703184
    Abstract: A low moisture donor element for use in transferring moisture sensitive organic material to an OLED device including a low moisture transparent support; an optional absorber antireflecting layer which increases the absorption efficiency of the element; a metallic heat absorbing layer provided over the low moisture transparent support; and an organic transfer layer consisting of one or more heat transferable organic layers provided over the support.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: March 9, 2004
    Assignee: Eastman Kodak Company
    Inventors: Donald R. Preuss, Jehuda Greener
  • Publication number: 20040026816
    Abstract: A dyed polyester film comprising a B/A/B′ type laminate structure wherein B and B′ are clear polyester layers not containing a dye additive or a sublimate forming material and having a thickness LB and LB′ and a glass transition TgB and TgB′; A is a dyed polyester layer containing a dye additive and having a thickness LA and a glass transition temperature TgA; wherein the polyester in B, B′ and A is poly(ethylene terephthalate), poly(ethylene naphthalate), polyesters containing sulfonate groups, copolymers of poly(ethylene terephthalate), poly(ethylene naphthalate), or copolymers of poly(ethylene terephthalate) and poly(cyclohexane dimethylene terephthalate). A method of producing the dyed polyester film is also disclosed.
    Type: Application
    Filed: May 1, 2003
    Publication date: February 12, 2004
    Inventors: Jehuda Greener, Thomas M. Laney, Fred D. Kelley