Patents by Inventor Didier J. Martin
Didier J. Martin 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).
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Patent number: 8075963Abstract: The present invention relates to a material intended for forming images by inkjet printing having good stability to ozone and to light as well as a uniform surface, to obtain a high-quality printed image. The material comprises a support and at least one ink-receiving layer, wherein the ink-receiving layer comprises at least one polysaccharide, such as carrageenan, and at least one hydriphillic polymer having hydroxyl groups, such as polyvinyl alcohol and guar gum, and inorganic particles having a neutral or positive surface charge.Type: GrantFiled: February 7, 2006Date of Patent: December 13, 2011Assignee: Eastman Kodak CompanyInventor: Didier J. Martin
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Publication number: 20040248050Abstract: The present invention relates to a concentrated solution for photographic reversal baths, and to a ready-to-use reversal solution, for limiting the growth of microorganisms and biofilm formation.Type: ApplicationFiled: April 22, 2004Publication date: December 9, 2004Inventors: Didier J Martin, Olivier J Poncelet
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Patent number: 6723247Abstract: The invention relates to a low-water-consumption method for processing an exposed color reversal photographic film. This method comprises the circulation of this exposed film in: i) a black and white development bath, ii) a first washing bath, iii) a reversal bath comprising at least a buffer agent liable to pass through a nanofiltration membrane and, in addition, the collection of waters leaving the said reversal bath, the circulation of these waters through a nanofiltration device to produce a permeate that is recycled in the said first washing bath, a water volume at least equivalent to that supplied by the said permeate being rejected via the overflow and the said buffer agent being chosen so as to keep the pH in the first washing bath between 5 and 7.Type: GrantFiled: April 16, 2002Date of Patent: April 20, 2004Assignee: Eastman Kodak CompanyInventor: Didier J. Martin
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Patent number: 6702486Abstract: The invention relates to a method and device for processing an exposed color reversal photographic film. This method enables the water consumption of the washing baths to be limited, the water levels being maintained by a counter-current coming from the bath placed downstream, an equivalent volume of water being discharged through an overflow. The wash waters are recovered and treated by a nanofiltration unit capable of giving a permeate which can be recycled to the washing baths. This method makes it possible to overcome the problem of the presence of tin (II) in the first washing bath supplied with water by a counter-current coming from the reversal bath. This process also makes it possible to overcome the problems of discharges of chemical substances to the drains while maintaining a good sensitometry of the developed films.Type: GrantFiled: July 29, 2002Date of Patent: March 9, 2004Assignee: Eastman Kodak CompanyInventors: Didier J. Martin, Cécile A. Maudhuit
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Patent number: 6699451Abstract: An inorganic polymeric aluminosilicate material and a method for preparing the same, are disclosed. Instead of having a fibrous structure, the material has a structure consisting of spindles with a length in the range of from 10 to 100 &mgr;m and a width in the range of from 2 to 20 &mgr;m. This polymeric alumino-silicate can be used for the production of antistatic layers.Type: GrantFiled: June 21, 2001Date of Patent: March 2, 2004Assignee: Eastman Kodak CompanyInventors: Jeannine Rigola, Olivier J. Poncelet, Didier J. Martin
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Patent number: 6652761Abstract: The invention relates to a method of recycling wash-water resulting from the treatment of a film provided with a carbon particles based backing layer, and especially from a washing treatment to remove the said carbon particles based backing layer. The method comprises the step of passing the wash-water through an microfiltration unit equipped with a microfiltration membrane made from a polytetrafluorethylene-based membrane. The method enables the regeneration of the wash-water and its recycling with a high efficiency and considerable lowering of the water consumption used in this step of the processing.Type: GrantFiled: January 18, 2002Date of Patent: November 25, 2003Assignee: Eastman Kodak CompanyInventor: Didier J. Martin
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Patent number: 6638699Abstract: The invention relates to a method for processing an exposed color reversal photographic film. This method comprises the step of circulating the exposed film in a fixing bath, in and then a final washing zone comprises at least one washing bath. Each washing bath of this zone comprising a buffer prepared from a weak acid and its conjugated base, with a conjugated base concentration more than 1 g/l, said buffer being chosen to maintain the pH between 4.5 and 6. The method comprises then the step of collecting the contents of the washing baths of this zone and the passage of said contents through a nanofiltration device comprising a membrane, whose cut-off threshold is more than the molar mass of the weak acid and the conjugated base making up the buffer, to give a permeate that is recycled in the final washing zone.Type: GrantFiled: July 18, 2002Date of Patent: October 28, 2003Assignee: Eastman Kodak CompanyInventor: Didier J. Martin
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Publication number: 20030173298Abstract: The present invention relates to a method for processing an exposed color silver halide photographic paper in processing units having a color paper throughput greater than 200 m2/h comprising the circulation of negative color paper in:Type: ApplicationFiled: February 25, 2003Publication date: September 18, 2003Applicant: Eastman Kodak CompanyInventors: Didier J. Martin, Tanneguy De Poulpiquet
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Publication number: 20030096201Abstract: The invention relates to a method for processing an exposed color reversal photographic film. This method comprises the step of circulating the exposed film in a fixing bath, in and then a final washing zone comprises at least one washing bath. Each washing bath of this zone comprising a buffer prepared from a weak acid and its conjugated base, with a conjugated base concentration more than 1 g/l, said buffer being chosen to maintain the pH between 4.5 and 6. The method comprises then the step of collecting the contents of the washing baths of this zone and the passage of said contents through a nanofiltration device comprising a membrane, whose cut-off threshold is more than the molar mass of the weak acid and the conjugated base making up the buffer, to give a permeate that is recycled in the final washing zone.Type: ApplicationFiled: July 18, 2002Publication date: May 22, 2003Applicant: Eastman Kodak CompanyInventor: Didier J. Martin
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Publication number: 20030070987Abstract: The invention relates to a low-water-consumption method for processing an exposed color reversal photographic film.Type: ApplicationFiled: April 16, 2002Publication date: April 17, 2003Applicant: Eastman Kodak CompanyInventor: Didier J. Martin
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Publication number: 20030044735Abstract: The invention relates to a method and device for processing an exposed colour reversal photographic film. This method enables the water consumption of the washing baths to be limited, the water levels being maintained by a counter-current coming from the bath placed downstream, an equivalent volume of water being discharged through an overflow. The wash waters are recovered and treated by a nanofiltration unit capable of giving a permeate which can be recycled to the washing baths. This method makes it possible to overcome the problem of the presence of tin (II) in the first washing bath supplied with water by a counter-current coming from the reversal bath. This process also makes it possible to overcome the problems of discharges of chemical substances to the drains while maintaining a good sensitometry of the developed films.Type: ApplicationFiled: July 29, 2002Publication date: March 6, 2003Inventors: Didier J. Martin, Cecile A. Maudhuit
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Publication number: 20020185440Abstract: The invention relates to a method of recycling wash-water resulting from the treatment of a film provided with a carbon particles based backing layer, and especially from a washing treatment to remove the said carbon particles based backing layer. The method comprises the step of passing the wash-water through an ultrafiltration unit equipped with an electrically charged hydrophilic ultrafiltration membrane, e.g. an acrylonitrile copolymers based membrane. The method enables the recycling of the wash-water made uncolored with a high efficiency and considerable lowering of the water consumption used in this step of the processing.Type: ApplicationFiled: January 10, 2002Publication date: December 12, 2002Applicant: Eastman Kodak CompanyInventor: Didier J. Martin
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Patent number: 6492098Abstract: A method to improve the functioning of a membrane of a nanofiltration device provided to filter a solution optimizes the retention rate of the membrane. In the method, the permeate and the retentate are circulated through the nanofiltration membrane for a time before starting to use the membrane. The method is applicable to the treatment of photographic baths.Type: GrantFiled: July 18, 2001Date of Patent: December 10, 2002Assignee: Eastman Kodak CompanyInventor: Didier J. Martin
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Publication number: 20020175125Abstract: The present invention relates to a method for removing pollutants from aqueous photographic effluent containing silver in completed form and (or) thiosulfates.Type: ApplicationFiled: January 10, 2002Publication date: November 28, 2002Applicant: Eastman Kodak CompanyInventor: Didier J. Martin
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Publication number: 20020153293Abstract: The invention relates to a method of recycling wash-water resulting from the treatment of a film provided with a carbon particles based backing layer, and especially from a washing treatment to remove the said carbon particles based backing layer. The method comprises the step of passing the wash-water through an microfiltration unit equipped with a microfiltration membrane made from a polytetrafluorethylene-based membrane. The method enables the regeneration of the wash-water and its recycling with a high efficiency and considerable lowering of the water consumption used in this step of the processing.Type: ApplicationFiled: January 18, 2002Publication date: October 24, 2002Applicant: Eastman Kodak CompanyInventor: Didier J. Martin
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Patent number: 6451518Abstract: The invention relates to a method and device for processing an exposed color reversal photographic film. This method enables the water consumption of the washing baths to be limited, the water levels being maintained by a counter-current coming from the bath placed downstream, an equivalent volume of water being discharged through an overflow. The wash waters are recovered and treated by a nanofiltration unit capable of giving a permeate which can be recycled to the washing baths. This method makes it possible to overcome the problem of the presence of tin (II) in the first washing bath supplied with water by a counter-current coming from the reversal bath. This process also makes it possible to overcome the problems of discharges of chemical substances to the drains while maintaining a good sensitometry of the developed films.Type: GrantFiled: February 20, 2001Date of Patent: September 17, 2002Assignee: Eastman Kodak CompanyInventors: Didier J. Martin, Cécile A. Maudhuit
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Publication number: 20020031733Abstract: A method to improve the functioning of a membrane of a nanofiltration device provided to filter a solution optimizes the retention rate of the membrane. In the method, the permeate and the retentate are circulated through the nanofiltration membrane for a time before starting to use the membrane. The method is applicable to the treatment of photographic baths.Type: ApplicationFiled: July 18, 2001Publication date: March 14, 2002Applicant: Eastman Kodak CompanyInventor: Didier J. Martin
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Publication number: 20010046467Abstract: An inorganic polymeric aluminosilicate material and a method for preparing the same, are disclosed. Instead of having a fibrous structure, the material has a structure consisting of spindles with a length in the range of from 10 to 100 &mgr;m and a width in the range of from 2 to 20 &mgr;m. This polymeric alumino-silicate can be used for the production of antistatic layers.Type: ApplicationFiled: June 21, 2001Publication date: November 29, 2001Inventors: Jeannine Rigola, Olivier J. Poncelet, Didier J. Martin
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Patent number: 6312118Abstract: The invention relates to an ink reservoir for ink jet printing. This reservoir includes a solid electrolyte pellet inserted in the wall of the reservoir, which conducts O2− ions when subjected to an electric current. The reservoir allows to control the internal atmosphere of the reservoir above the free surface of the ink that it contains.Type: GrantFiled: June 16, 2000Date of Patent: November 6, 2001Assignee: Eastman Kodak CompanyInventors: Yannick J. Lerat, Didier J. Martin, Olivier J. Poncelet, Thierry Vachette
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Patent number: 6309043Abstract: The invention relates to a device for moving fluids. The invention device includes an enclosure, a solid electrolyte which can produce oxygen in the enclosure so as to distort a membrane that acts to move a fluid in an enclosure. This device is useful to produce a head for ink jet printing.Type: GrantFiled: October 7, 1999Date of Patent: October 30, 2001Assignee: Eastman Kodak CompanyInventors: Yannick J. Lerat, Didier J. Martin, Olivier J. Poncelet, Thierry Vachette