Patents by Inventor Harry R. Zwicker
Harry R. Zwicker 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: 7847940Abstract: A multi-channel imaging head is calibrated in accordance with a pre-determined regular pattern to minimize swath-to-swath and inter-swath variations during the imaging of the regular pattern. The imaging parameters of the imaging head are optimized in accordance with the pre-determined regular pattern.Type: GrantFiled: April 6, 2006Date of Patent: December 7, 2010Assignee: Eastman Kodak CompanyInventors: Valentin Karasyuk, Harry R. Zwicker, Wilson D. Cheung, Jonathan V. Caspar, Sina Afrooze
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Publication number: 20090066796Abstract: A multi-channel imaging head is calibrated in accordance with a pre-determined regular pattern to minimize swath-to-swath and inter-swath variations during the imaging of the regular pattern. The imaging parameters of the imaging head are optimized in accordance with the pre-determined regular pattern.Type: ApplicationFiled: April 6, 2006Publication date: March 12, 2009Applicant: KODAK GRAPHIC COMMUNICATIONS CANADA COMPANYInventors: Valentin Karasyuk, Harry R. Zwicker, Wilson D. Cheung, Jonathan V. Caspar, Sina Afrooze
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Patent number: 6365305Abstract: A combination digital/analog color proofing method having the steps of: digitally forming a color thermal image on a receiver element comprising a receiver support and an image receiving layer; laminating the digitally formed image with a film comprising a support having a release surface and a thermoplastic polymer layer; removing the support thereby revealing the thermoplastic polymer layer, and leaving the digitally formed image encased between the image receiving layer and the thermoplastic polymer layer; and laminating an analog color image to the revealed thermoplastic polymer layer to create a color proof having at least two color images.Type: GrantFiled: June 20, 2000Date of Patent: April 2, 2002Assignee: E. I. du Pont de Nemours and CompanyInventors: Harvey Walter Taylor, Jr., Daphne Pinto Fickes, Harry R. Zwicker
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Patent number: 5420085Abstract: A method of making self-supporting ceramic composite structures having filler embedded therein includes infiltrating a permeable mass of filler with polycrystalline material comprising an oxidation reaction product obtained by oxidation of a parent metal such as aluminum and optionally, containing therein non-oxidized constituents of the parent metal. The structure is formed by placing a parent metal adjacent to a permeable filler and heating the assembly to melt the parent metal and provide a molten body of parent metal which is contacted with a suitable vapor-phase oxidant. Within a certain temperature region and optionally, aided by one or more dopants in or on the parent metal, molten parent metal will migrate through previously formed oxidation reaction product into contact with the oxidant, causing the oxidation reaction product to grow so as to embed the adjacent filler and provide the composite structure.Type: GrantFiled: January 21, 1993Date of Patent: May 30, 1995Assignee: Lanxide Technology Company, LPInventors: Marc S. Newkirk, Harry R. Zwicker, Andrew W. Urquhart, Harold D. Lesher, Terry D. Claar, Michael K. Aghajanian, John P. Biel, Jr.
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Patent number: 5407874Abstract: The invention concerns self-supporting ceramic structures, including ceramic composite structures embedding a filler, and methods of making them. The ceramic structures comprise a polycrystalline material made by oxidation of a body of molten parent metal with an oxidant. The polycrystalline material has a first region substrate surmounted by a terminal region stratum which is integral with the first region. The terminal region stratum which is harder and of denser, finer crystalline structure than the first region substrate and is formed in a reaction stage subsequent to the reaction stage in which the first region of polycrystalline material is formed. Growth of the first stage is attained by by attenuating or interrupting the transport of molten parent metal to the first region under conditions which nonetheless leave or maintain therein enough oxidizable molten parent metal to form the polycrystalline material of the terminal region.Type: GrantFiled: February 8, 1993Date of Patent: April 18, 1995Assignee: Lanxide Technology Company, LPInventors: Stanley J. Luszcz, Harry R. Zwicker
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Patent number: 5334562Abstract: Self-supporting ceramic composite structures having filler embedded therein are taught as being produced by a method which includes infiltrating a permeable mass of filler with polycrystalline material comprising an oxidation reaction product obtained by oxidation of a parent metal such as aluminum and optionally containing therein non-oxidized constituents of the parent metal. The structure is formed by placing a parent metal adjacent to a permeable filler and heating the assembly to melt the parent metal and provide a molten body of parent metal which is contacted with a suitable vapor-phase oxidant. Within a certain temperature region and optionally aided by one or more dopants in or on the parent metal, molten parent metal will migrate through previously formed oxidation reaction product into contact with the oxidant, causing the oxidation reaction product to grow so as to embed the adjacent filler and provide the composite structure.Type: GrantFiled: February 16, 1993Date of Patent: August 2, 1994Assignee: Lanxide Technology Company, LPInventors: Marc S. Newkirk, Andrew W. Urquhart, Harry R. Zwicker, H. Daniel Lesher
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Patent number: 5266415Abstract: A method of producing self-supporting ceramic bodies having a modified metal-containing component includes first providing a a self-supporting ceramic body comprising (i) a polycrystalline oxidation reaction product formed upon oxidation of a molten parent metal precursor with an oxidant, and (ii) an interconnected metal-containing component at least partially accessible from one or more surfaces of said ceramic body. The surface or surfaces of the ceramic body is contacted with a quantity of foreign metal different from said interconnected metal-containing component at a temperature and for a time sufficient to allow for interdiffusion, whereby at least a portion of said metal-containing component is displaced by said foreign metal. The resulting ceramic body, having an altered metal-containing component, exhibits modified or improved properties.Type: GrantFiled: June 15, 1992Date of Patent: November 30, 1993Assignee: Lanxide Technology Company, LPInventors: Marc S. Newkirk, Andrew W. Urquhart, Harry R. Zwicker
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Patent number: 5196271Abstract: A method is provided for producing a self-supporting ceramic body comprising a polycrystalline material comprised of the oxidation reaction product of a parent metal and having therein one or more channels which inversely replicate the geometry of a configured fugative metal. The method includes providing an assembly of the configured fugitive metal and the parent metal, optionally including a bed of permeable filler, and heating the assembly to form a body of molten parent metal. The molten parent metal is oxidized under selected conditions to grow the polycrystalline material to engulf the configured fugitive metal (and to infiltrate the filler, if the filler is present) and to cause the fugitive metal to disperse into the engulfing polycrystalline material thereby leaving behind as the one or more channels the space formerly occupied by the configured fugitive metal.Type: GrantFiled: February 20, 1992Date of Patent: March 23, 1993Assignee: Lanxide Technology Company, LPInventors: Danny R. White, Michael K. Aghajanian, Harry R. Zwicker
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Patent number: 5187130Abstract: Self supporting ceramic composite structures having filler embedded therein produced by a method which includes infiltrating a permeable mass of filler with polycrystalline material comprising an oxidation reaction product obtained by oxidation of a parent metal such as aluminum and optionally containing therein non-oxidized constituents of the parent metal. The structure is formed by placing a parent metal adjacent to a permeable filler and heating the assembly to melt the parent metal and provide a molten body of parent metal which is contacted with a suitable vapor-phase oxidant. Within a certain temperature region and optionally aided by one or more dopants in or on the parent metal, molten parent metal will migrate through previously formed oxidation reaction product into contact with the oxidant, causing the oxidation reaction product to grow so as to embed the adjacent filler and provide the composite structure.Type: GrantFiled: February 25, 1991Date of Patent: February 16, 1993Assignee: Lanxide Technology Company, LPInventors: Marc S. Newkirk, Andrew W. Urquhart, Harry R. Zwicker, H. Daniel Lesher
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Patent number: 5185302Abstract: The invention concerns self-supporting ceramic structures, including ceramic composite structures embedding a filler, and methods of making them. The ceramic structures comprise a polycrystalline material made by oxidation of a body of molten parent metal with an oxidant. The polycrystalline material has a first region substrate surmounted by a terminal region stratum which is integral with the first region. The terminal region stratum, may be harder and of denser, finer crystalline structure than the first region substrate, is formed in a reaction stage subsequent to the reaction stage in which the first region of polycrystalline material is formed. Growth of the first stage is attained by attenuating or interrupting the transport of molten parent metal to the first region under conditions which nonetheless leave or maintain therein enough oxidizable molten parent metal to form the polycrystalline material of the terminal region.Type: GrantFiled: October 17, 1991Date of Patent: February 9, 1993Assignee: Lanxide Technology Company, LPInventors: Stanley J. Luszcz, Harry R. Zwicker
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Patent number: 5122488Abstract: A method of producing self-supporting ceramic bodies having a modified metal-containing component includes first providing a self-supporting ceramic body comprising (i) a polycrystalline oxidation reaction product formed upon oxidation of a molten parent metal precursor with an oxidant, and (ii) an interconnected metal-containing component at least partially accessible from one or more surfaces of said ceramic body. The surface or surfaces of the ceramic body is contacted with a quantity of foreign metal different from said interconnected metal-containing component at a temperature and for a time sufficient to allow for interdiffusion, whereby at least a portion of said metal-containing component is displaced by said foreign metal. The resulting ceramic body, having an altered metal-containing component, exhibits modified or improved properties.Type: GrantFiled: February 20, 1990Date of Patent: June 16, 1992Assignee: Lanxide Technology Company, LPInventors: Marc S. Newkirk, Andrew W. Urquhart, Harry R. Zwicker
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Patent number: 5106698Abstract: Self-supporting ceramic bodies having a modified metal-containing component are formed by first providing a self-supporting ceramic body comprising (1) a polycrystalline oxidation reaction product formed upon oxidation of a molten parent metal precursor with an oxidant, and (ii) an interconnected metal-containing component at least partially accessible from one or more surfaces of said ceramic body. The surface or surfaces of the ceramic body are contacted with a quantity of foreign metal different from said interconnected metal-containing component at a temperature and for a time sufficient to allow for interdiffusion, whereby at least a portion of said metal-containing component is displaced by said foreign metal. The resulting ceramic body, having an altered metal-containing component, exhibits modified or improved properties.Type: GrantFiled: March 17, 1989Date of Patent: April 21, 1992Assignee: Lanxide Technology Company, LPInventors: Marc S. Newkirk, Andrew W. Urquhart, Harry R. Zwicker
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Patent number: 5073527Abstract: A method to produce an article of commerce comprising a self-supporting ceramic body by oxidation of a molten parent metal with a vapor-phase oxidant, includes applying to a surface of the parent metal a layer having at least one dopant material therein. The layer is thin relative to the thickness of the ceramic body. Upon heating the parent metal to a molten state in the presence of the oxidant, e.g., air, an oxidation reaction product is formed on the molten metal which, because of the effect of the dopant material, migrates through the growing oxidation reaction product so as to be exposed to the oxidant to form additional oxidation reaction product to and beyond the depth of the applied dopant material layer. Suitable temperature and oxidizing conditions are maintained for a time sufficient to produce a self-supporting ceramic body.Type: GrantFiled: March 28, 1990Date of Patent: December 17, 1991Assignee: Lanxide Technology Company, LPInventors: Marc S. Newkirk, Harry R. Zwicker
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Patent number: 4916113Abstract: A method of making self-supporting ceramic composite structures having filler embedded therein includes infiltrating a permeable mass of filler with polycrystalline material comprising an oxidation reaction product obtained by oxidation of a parent metal such as aluminum and optionally containing therein non-oxidized constituents of the parent metal. The structure is formed by placing a parent metal adjacent to a permeable filler and heating the assembly to melt the parent metal and provide a molten body of parent metal which is contacted with a suitable vapor-phase oxidant. Within a certain temperature region and optionally aided by one or more dopants in or on the parent metal, molten parent metal will migrate through previously formed oxidation reaction product into contact with the oxidant, causing the oxidation reaction product to grow so as to embed the adjacent filler and provide the composite structure.Type: GrantFiled: November 1, 1988Date of Patent: April 10, 1990Assignee: Lanxide Technology Company, LPInventors: Marc S. Newkirk, Andrew W. Urquhart, Harry R. Zwicker, H. Daniel Lesher
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Patent number: 4868143Abstract: A method of producing self-supporting ceramic bodies having a modified metal-containing component includes first providing a self-supporting ceramic body comprising (i) a polycrystalline oxidation reaction product formed upon oxidation of a molten parent metal precursor with an oxidant, and (ii) an interconnected metal-containing component at least partially accessible from one or more surfaces of said ceramic body. The surface or surfaces of the ceramic body is contacted with a quantity of foreign metal different from said interconnected metal-containing component at a temperature and for a time sufficient to allow for interdiffusion, whereby at least a portion of said metal-containing component is displaced by said foreign metal. The resulting ceramic body, having an altered metal-containing component, exhibits modified or improved properties.Type: GrantFiled: August 13, 1986Date of Patent: September 19, 1989Assignee: Lanxide Technology Company, LPInventors: Marc S. Newkirk, Andrew W. Urquhart, Harry R. Zwicker
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Patent number: 4853352Abstract: A method to produce an article of commerce comprising a self-supporting ceramic body by oxidation of a molten parent metal with a vapor-phase oxidant, includes applying to a surface of the parent metal a layer at least one dopant material therein. The layer is thin relative to the thickness of the ceramic body. Upon heating the parent metal to a molten state in the presence of the oxidant, e.g., air, an oxidation reaction product is formed on the molten metal which, because of the effect of the dopant material, migrates through the growing oxidation reaction product so as to be exposed to the oxidant to form additional oxidation reaction product to and beyond the depth of the applied dopant material layer. Suitable temperature and oxidizing conditions are maintained for a time sufficient to produce a self-supporting ceramic body.Type: GrantFiled: June 23, 1988Date of Patent: August 1, 1989Assignee: Lanxide Technology Company, LPInventors: Marc S. Newkirk, Harry R. Zwicker
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Patent number: 4851375Abstract: A method of making self-supporting ceramic composite structures having filler embedded therein includes infiltrating a permeable mass of filler with polycrystalline material comprising an oxidation reaction product obtained by oxidation of a parent metal such as aluminum and optionally containing therein non-oxidized constituents of the parent metal. The structure is formed by placing a parent metal adjacent to a permeable filler and heating the assembly to melt the parent metal and provide a molten body of parent metal which is contacted with a suitable vapor-phase oxidant. Within a certain temperature region and optionally aided by one or more dopants in or on the parent metal, molten parent metal will migrate through previously formed oxidation reaction product into contact with the oxidant, causing the oxidation reaction product to grow so as to embed the adjacent filler and provide the composite structure.Type: GrantFiled: January 17, 1986Date of Patent: July 25, 1989Assignee: Lanxide Technology Company, LPInventors: Marc S. Newkirk, Andrew W. Urquhart, Harry R. Zwicker, H. Daniel Lesher
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Patent number: 4837232Abstract: The invention concerns self-supporting ceramic structures, including ceramic composite structures embedding a filler, and methods of making them. The ceramic structures comprise a polycrystalline material made by oxidation of a body of molten parent metal with an oxidant. The polycrystalline material has a first region substrate surmounted by a terminal region stratum which is integral with the first region. The terminal region stratum is harder and of denser, finer crystalline structure than the first region substrate and is formed in a reaction stage subsequent to the reaction stage in which the first region of polycrystalline material is formed. Growth of the first stage is attained by attenuating or interrupting the transport of molten parent metal to the first region under conditions which nonetheless leave or maintain therein enough oxidizable molten parent metal to form the polycrystalline material of the terminal region.Type: GrantFiled: September 16, 1986Date of Patent: June 6, 1989Assignee: Lanxide Technology Company, LPInventors: Stanley J. Luszcz, Harry R. Zwicker