Patents by Inventor Piero Ramello

Piero Ramello 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: 5984543
    Abstract: An apparatus for processing and digitizing an exposed silver halide photographic film comprises processing means in which said exposed photographic film is processed to form an analog image on said film, and digitizing means in which said analog image is photoelectrically read-out to form a digital image representing said analog image. Means for processing the exposed photographic film comprises means for developing, stabilizing and drying of said film. Digitization is effected on a photographic film which has been developed but not fixed and which retains both image-wise developed metallic silver and undeveloped silver halide grains.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: November 16, 1999
    Assignee: Minnesota Mining and Manufacturing
    Inventors: Piero Ramello, Alfredo Viglienzoni
  • Patent number: 5529972
    Abstract: The present invention relates to a thermal dye transfer material, more specifically to a thermal dye transfer receiving material comprising a support having thereon at least one dye receiving layer which can accept a dye which migrates from a thermal dye transfer donating material as a result of heating, wherein said dye receiving material is obtained by coating an aqueous microdispersion (latex) of a dye accepting polymeric compound.
    Type: Grant
    Filed: October 7, 1992
    Date of Patent: June 25, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Piero Ramello, Adriano Gribaudo
  • Patent number: 4737441
    Abstract: A photographic material for tanning development which comprises a photographic support base, at least one tannable binder material, at least one silver halide emulsion and at least one pigment, said material including a 3-pyrazolidone compound and at least two different 1,4-dihydroxybenzene compounds, the first of which is chosen within the group of those having a standard tanning development time (STDT) of one fourth to twice the hydroquinone STDT (STDTHy) and the second of which is chosen within the group of those having a STDT of one fourth to fifteen times the STDTHy.Most preferably, the above photographic material includes hydroquinone in addition to the 3-pyrazolidone compound and the two 1,4-dihydroxybenzene compounds, wherein the first 1,4-dihydroxybenzene compound, other than hydroquinone, is chosen within the group of those having a STDT of one fourth to twice the STDTHy and the second 1,4-dihydroxybenzene compound is chosen within the group of those having a STDT of two to fifteen times the STDTHy.
    Type: Grant
    Filed: May 23, 1986
    Date of Patent: April 12, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Marco Beruto, Antonio Luzzi, Piero Ramello
  • Patent number: 4504572
    Abstract: Silver halide photographic elements for tanning development including tanning developers, which can diffuse into the gelatin layer containing them, can be improved if they are associated with non-diffusing hydroquinones. In the case where such tanning developer is hydroquinone or a derivative thereof, said elements include such diffusing hydroquinone associated with a hydroquinone derivative non-diffusing in the gelatin layer containing it. Such non-diffusing hydroquinones preferably are hydroquinones substituted with aliphatic chains containing a total of at least twelve carbon atoms and, more preferably, are dispersed in the layer dissolved in a high-boiling organic solvent.
    Type: Grant
    Filed: August 4, 1983
    Date of Patent: March 12, 1985
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Marco Beruto, Antonio Luzzi, Piero Ramello
  • Patent number: 4369245
    Abstract: A photographic element for tanning development which comprises a support, a layer of silver halide emulsion in non-hardened gelatin including a tanning developer dispersed therein, and over said emulsion layer, a layer of non-hardened gelatin comprising at least one colored pigment dispersed therein, characterized by the silver in said silver halide emulsion layer being present in a quantity of less than 0.6 g/m.sup.2 with a silver/gelatin ratio of less than 0.4. A method for obtaining a colored relief image in such an element is shown.
    Type: Grant
    Filed: September 8, 1981
    Date of Patent: January 18, 1983
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Marco Beruto, Piero Ramello