Patents by Inventor Sriram Rangarajan
Sriram Rangarajan 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: 10000424Abstract: A method for firing a green honeycomb ceramic body in a kiln may include heating the green honeycomb ceramic body in four stages. The first stage may include heating the green honeycomb ceramic body from room temperature to a first temperature that at a first heating rate that is greater than or equal to about 75° C./hr. The second stage may include heating the green honeycomb ceramic body from the first temperature to a second temperature at a second heating rate that is less than or equal to the first heating rate. The third stage may include heating the green honeycomb ceramic body from the second temperature to a hold temperature at a third heating rate that is less than or equal to the first heating rate. The fourth stage may include holding the green honeycomb ceramic body at the hold temperature to remove residual carbon.Type: GrantFiled: March 4, 2014Date of Patent: June 19, 2018Assignee: Corning IncorporatedInventors: Douglas Munroe Beall, David Jack Bronfenbrenner, Margaret Kathleen Faber, Sriram Rangarajan Iyer, Patrick David Tepesch, Douglas Richard Wing
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Patent number: 9673483Abstract: Disclosed herein are methods for making a solid lithium ion electrolyte membrane, the methods comprising combining a first reactant chosen from amorphous, glassy, or low melting temperature solid reactants with a second reactant chosen from refractory oxides to form a mixture; heating the mixture to a first temperature to form a homogenized composite, wherein the first temperature is between a glass transition temperature of the first reactant and a crystallization onset temperature of the mixture; milling the homogenized composite to form homogenized particles; casting the homogenized particles to form a green body; and sintering the green body at a second temperature to form a solid membrane. Solid lithium ion electrolyte membranes manufactured according to these methods are also disclosed herein.Type: GrantFiled: January 19, 2015Date of Patent: June 6, 2017Assignee: Corning IncorporatedInventors: Michael Edward Badding, Indrajit Dutta, Sriram Rangarajan Iyer, Brian Alan Kent, Nadja Teresia Lonnroth
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Patent number: 9446560Abstract: A method for firing a green honeycomb ceramic body including heating the green honeycomb ceramic body from room temperature to a first temperature of about 300° C. The green honeycomb ceramic body is then heated from the first temperature to a second temperature of greater than or equal to about 800° C. at a heating rate of greater than or equal to about 90° C./hr. The green honeycomb ceramic body may have a diameter of from greater than or equal to about 4.0 inches to less than or equal to about 9.0 inches, and it may include a carbon-based pore former in a concentration of from greater than or equal to about 10% to less than or equal to about 45% by weight.Type: GrantFiled: July 26, 2013Date of Patent: September 20, 2016Assignee: Corning IncorporatedInventors: David Jack Bronfenbrenner, Sriram Rangarajan Iyer
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Publication number: 20160211546Abstract: Disclosed herein are methods for making a solid lithium ion electrolyte membrane, the methods comprising combining a first reactant chosen from amorphous, glassy, or low melting temperature solid reactants with a second reactant chosen from refractory oxides to form a mixture; heating the mixture to a first temperature to form a homogenized composite, wherein the first temperature is between a glass transition temperature of the first reactant and a crystallization onset temperature of the mixture; milling the homogenized composite to form homogenized particles; casting the homogenized particles to form a green body; and sintering the green body at a second temperature to form a solid membrane. Solid lithium ion electrolyte membranes manufactured according to these methods are also disclosed herein.Type: ApplicationFiled: January 19, 2015Publication date: July 21, 2016Inventors: MICHAEL EDWARD BADDING, Indrajit Dutta, Sriram Rangarajan Iyer, Brian Alan Kent, Nadja Teresia Lonnroth
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Patent number: 9133062Abstract: Methods of firing a cordierite green body to form a fired cordierite body. The green body comprises cordierite-forming raw materials and organic material, the body having a core portion and a skin portion. The green body is pre-heated to a pre-heat temperature that is less than a thermal decomposition temperature of the organic material. The green body is maintained at the pre-heat temperature for a period of time sufficient to minimize a temperature differential between the core portion and the skin portion. The green body is heated to a low firing temperature in a firing atmosphere sufficient to reduce a content of the organic material and to substantially remove chemically bound water from hydrous alumina. The green body is heated to a high firing temperature in a firing atmosphere sufficient to reduce the content of the organic material prior to a substantial removal of chemically bound water from clay.Type: GrantFiled: November 21, 2012Date of Patent: September 15, 2015Assignee: Corning IncorporatedInventors: Robert Joseph Castilone, Sriram Rangarajan Iyer, Mark Allen Spetseris, Jonathan Mark Stalker
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Publication number: 20150142713Abstract: An apparatus, system and method for automatically evaluating a transaction request are provided. An adaptive modeling platform builds models and deploys them in a very systematic manner, without requiring much or any human intervention. This system ensures an end to end data management; encompassing variable generation, model building and evaluation of the built models, decision logic and strategy design. It guarantees deployment of these predictive models in real time, monitors performance of the portfolio and generates reports & alerts for the same. The system periodically examines the models in production and rebuilds them when their performance falls below a predefined threshold. When the human discretion so permits, the system can be interrupted at any point in time and changes can be made wherever desired in the process.Type: ApplicationFiled: November 3, 2014Publication date: May 21, 2015Inventors: Krishna Gopinathan, Sriram Rangarajan
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Publication number: 20150142446Abstract: A credit risk decision management system and method using voice analytics are disclosed. The voice analysis may be applied to speaker authentication and emotion detection. The system introduces use of voice analysis as a tool for credit assessment, fraud detection and a measure of customer satisfaction and return rate probability when lending to an individual or a group. Emotions in voice interactions during a credit granting process are shown to have high correlation with specific loan outcomes. This system may predicts lending outcomes that determine if a customer might face financial difficulty in near future and ascertains affordable credit limit for such a customer. Information carrying features are extracted from the customer's voice files, and mathematical and logical transformations are performed on these features to get derived features. The data is then fed to a predictive model which captures the probability of default, intent to pay and fraudulent activity involved in a credit transaction.Type: ApplicationFiled: November 20, 2014Publication date: May 21, 2015Inventors: Krishna Raj Gopinathan, Jagat Chaitanya, Sudalai Raj Kumar, Sriram Rangarajan
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Patent number: 9005517Abstract: A method for making a cordierite filter article, including: firing an extruded green body batch composition according to: a first temperature ramping from ambient temperature up to a first soaking temperature; a first soaking at a temperature of at least 1255° C. for at least 2 hours; a second temperature ramping from the first soak temperature down to a second soak temperature; and a second soaking at a temperature of at least 1250° C. and at least 5° C. below the first soaking temperature, as defined herein.Type: GrantFiled: May 16, 2012Date of Patent: April 14, 2015Assignee: Corning IncorporatedInventors: David J Bronfenbrenner, Lisa Larae Hepburn, Sriram Rangarajan Iyer, Lev Lvovitch Kuandykov, Dell Joseph St Julien, Elizabeth Ann White
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Publication number: 20150028527Abstract: A method for firing a green honeycomb ceramic body including heating the green honeycomb ceramic body from room temperature to a first temperature of about 300° C. The green honeycomb ceramic body is then heated from the first temperature to a second temperature of greater than or equal to about 800° C. at a heating rate of greater than or equal to about 90° C./hr. The green honeycomb ceramic body may have a diameter of from greater than or equal to about 4.0 inches to less than or equal to about 9.0 inches, and it may include a carbon-based pore former in a concentration of from greater than or equal to about 10% to less than or equal to about 45% by weight.Type: ApplicationFiled: July 26, 2013Publication date: January 29, 2015Applicant: CORNING INCORPORATEDInventors: David Jack Bronfenbrenner, Sriram Rangarajan Iyer
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Publication number: 20140252695Abstract: A method for firing a green honeycomb ceramic body in a kiln may include heating the green honeycomb ceramic body in four stages. The first stage may include heating the green honeycomb ceramic body from room temperature to a first temperature that at a first heating rate that is greater than or equal to about 75° C./hr. The second stage may include heating the green honeycomb ceramic body from the first temperature to a second temperature at a second heating rate that is less than or equal to the first heating rate. The third stage may include heating the green honeycomb ceramic body from the second temperature to a hold temperature at a third heating rate that is less than or equal to the first heating rate. The fourth stage may include holding the green honeycomb ceramic body at the hold temperature to remove residual carbon.Type: ApplicationFiled: March 4, 2014Publication date: September 11, 2014Applicant: CORNING INCORPORATEDInventors: Douglas Munroe Beall, David Jack Bronfenbrenner, Margaret Kathleen Faber, Sriram Rangarajan Iyer, Patrick David Tepesch, Douglas Richard Wing
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Publication number: 20140138882Abstract: Methods of firing a cordierite green body to form a fired cordierite body. The green body comprises cordierite-forming raw materials and organic material, the body having a core portion and a skin portion. The green body is pre-heated to a pre-heat temperature that is less than a thermal decomposition temperature of the organic material. The green body is maintained at the pre-heat temperature for a period of time sufficient to minimize a temperature differential between the core portion and the skin portion. The green body is heated to a low firing temperature in a firing atmosphere sufficient to reduce a content of the organic material and to substantially remove chemically bound water from hydrous alumina. The green body is heated to a high firing temperature in a firing atmosphere sufficient to reduce the content of the organic material prior to a substantial removal of chemically bound water from clay.Type: ApplicationFiled: November 21, 2012Publication date: May 22, 2014Applicant: CORNING INCORPORATEDInventors: Robert Joseph Castilone, Sriram Rangarajan Iyer, Mark Allen Spetseris, Jonathan Mark Stalker
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Publication number: 20130307176Abstract: A method for making a cordierite filter article, including: firing an extruded green body batch composition according to: a first temperature ramping from ambient temperature up to a first soaking temperature; a first soaking at a temperature of at least 1255° C. for at least 2 hours; a second temperature ramping from the first soak temperature down to a second soak temperature; and a second soaking at a temperature of at least 1250° C. and at least 5° C. below the first soaking temperature, as defined herein.Type: ApplicationFiled: May 16, 2012Publication date: November 21, 2013Inventors: David J. Bronfenbrenner, Lisa Larae Hepburn, Sriram Rangarajan Iyer, Lev Lvovitch Kuandykov, Dell Joseph St Julien, Elizabeth Ann White
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Patent number: 8444737Abstract: A method of firing a green structure to produce a ceramic structure may comprise heating a firing environment during a first stage of firing of a green structure over a first timed temperature cycle having an average ramp rate sufficient to substantially complete burnout of organic material prior to initiation of clay dehydration proximate a core of the ceramic structure. The method may further comprise heating the firing environment during a second stage of the firing over a second timed temperature cycle having an average ramp rate that is faster than the average ramp rate of the first timed temperature cycle.Type: GrantFiled: February 27, 2009Date of Patent: May 21, 2013Assignee: Corning IncorporatedInventor: Sriram Rangarajan Iyer
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Publication number: 20130103569Abstract: A structured reference credit decision device includes a database configured to store information related to applicants, potential customers, referencers, potential referencers, lenders, and other third parties, a fetch data component coupled with the database, the fetch data component configured to receive input application information, fetch relevant information from the database, based on the application information, related to a subject applicant of the input application information and at least one referencer, and generate a plurality of linked data packages based on the fetched information, and an evaluation device coupled with the fetch data component, the evaluation engine configure to apply credit outcome models to the plurality of linked data packages and generate a recommendation relative to the subject applicant or application.Type: ApplicationFiled: October 20, 2011Publication date: April 25, 2013Inventors: Krisha Gopinathan, Sriram Rangarajan
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Publication number: 20110129640Abstract: A method for making porous articles, including: depositing a powder mixture layer comprising a binder powder, and at least one structural powder; contacting the powder mixture layer and an aqueous liquid to selectively activate the binder powder and form a green layer; repeating the depositing and the contacting sequence at least one time; and de-powdering and drying of the resulting green body. The binder powder can include, for example, a protein that is soluble in water at or below about 25° C. The disclosure also provides articles, having high porosity and optionally intricate 3D structures, as defined herein.Type: ApplicationFiled: November 30, 2009Publication date: June 2, 2011Inventors: George Halsey Beall, Michael Thomas Gallagher, Keith Leonard House, Sriram Rangarajan Iyer, Paul John Shustack
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Publication number: 20100218472Abstract: A method of firing a green structure to produce a ceramic structure may comprise heating a firing environment during a first stage of firing of a green structure over a first timed temperature cycle having an average ramp rate sufficient to substantially complete burnout of organic material prior to initiation of clay dehydration proximate a core of the ceramic structure. The method may further comprise heating the firing environment during a second stage of the firing over a second timed temperature cycle having an average ramp rate that is faster than the average ramp rate of the first timed temperature cycle.Type: ApplicationFiled: February 27, 2009Publication date: September 2, 2010Inventor: Sriram Rangarajan Iyer
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Patent number: 7700017Abstract: A method of producing material from recycled glass comprising: preparing a mixture of glass in a cementitious matrix, and an alkali-silica reaction suppressant; providing a mold of the material and coating said mold with a release agent; casting said mixture into said mold; curing said mold; and removing the material from said mold. The recycled glass and concrete compositions are: 25-79% by weight glass; 8-35% by weight cement and up to 22% by weight of an alkali-silica reaction suppressant.Type: GrantFiled: August 24, 2004Date of Patent: April 20, 2010Assignee: Icestone LLCInventors: Timothy McCarthy, Carol A. McCarthy, legal representative, Sriram Rangarajan
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Publication number: 20050045069Abstract: A method of producing material from recycled glass comprising: preparing a mixture of glass in a cementitious matrix, and an alkali-silica reaction suppressant; providing a mold of the material and coating said mold with a release agent; casting said mixture into said mold; curing said mold; and removing the material from said mold. The recycled glass and concrete compositions are: 25-79% by weight glass; 8-35% by weight cement and up to 22% by weight of an alkali-silica reaction suppressant.Type: ApplicationFiled: August 24, 2004Publication date: March 3, 2005Inventors: Timothy McCarthy, Carol McCarthy, Sriram Rangarajan