Patents by Inventor Rajeev G. Kamat

Rajeev G. Kamat 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: 11193192
    Abstract: The present invention relates to aluminum alloy products that can be riveted and possess excellent ductility and toughness properties. The present invention also relates to a method of producing the aluminum alloy products. In particular, these products have application in the automotive industry.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: December 7, 2021
    Assignee: NOVELIS INC.
    Inventors: Michael Bull, Rajeev G. Kamat
  • Patent number: 10975461
    Abstract: Techniques are disclosed for casting high-strength and highly formable metal products from recycled metal scrap without the addition of substantial or any amounts of primary aluminum. Additional alloying elements, such as magnesium, can be added to metal scrap, which can be cast and processed to produce a desirable metal coil at final gauge having desirable metallurgical and mechanical properties, such as high strength and formability. Thus, inexpensive and recycled metal scrap can be efficiently repurposed for new applications, such as automotive applications and beverage can stock.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: April 13, 2021
    Assignee: Novelis Inc.
    Inventors: Sazol Kumar Das, Simon William Barker, Milan Felberbaum, Rajeev G. Kamat, Duane E. Bendzinski, Robert Bruce Wagstaff, Samuel R. Wagstaff
  • Publication number: 20210046540
    Abstract: A continuous casting and rolling line for casting, rolling, and otherwise preparing metal strip can produce distributable metal strip without requiring cold rolling or the use of a solution heat treatment line. A metal strip can be continuously cast from a continuous casting device and coiled into a metal coil, optionally after being subjected to post-casting quenching. This intermediate coil can be stored until ready for hot rolling. The as-cast metal strip can undergo reheating prior to hot rolling, either during coil storage or immediately prior to hot rolling. The heated metal strip can be cooled to a rolling temperature and hot rolled through one or more roll stands. The rolled metal strip can optionally be reheated and quenched prior to coiling for delivery. This final coiled metal strip can be of the desired gauge and have the desired physical characteristics for distribution to a manufacturing facility.
    Type: Application
    Filed: October 30, 2020
    Publication date: February 18, 2021
    Applicant: NOVELIS INC.
    Inventors: MILAN FELBERBAUM, SAZOL KUMAR DAS, AURELE MARIAUX, DUANE E. BENDZINSKI, CYRILLE BEZENCON, SIMON WILLIAM BARKER, CORRADO BASSI, RAJEEV G. KAMAT, TUDOR PIROTEALA, RAJASEKHAR TALLA, ROBERT BRUCE WAGSTAFF
  • Patent number: 10913107
    Abstract: A continuous casting and rolling line for casting, rolling, and otherwise preparing metal strip can produce distributable metal strip without requiring cold rolling or the use of a solution heat treatment line. A metal strip can be continuously cast from a continuous casting device and coiled into a metal coil, optionally after being subjected to post-casting quenching. This intermediate coil can be stored until ready for hot rolling. The as-cast metal strip can undergo reheating prior to hot rolling, either during coil storage or immediately prior to hot rolling. The heated metal strip can be cooled to a rolling temperature and hot rolled through one or more roll stands. The rolled metal strip can optionally be reheated and quenched prior to coiling for delivery. This final coiled metal strip can be of the desired gauge and have the desired physical characteristics for distribution to a manufacturing facility.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: February 9, 2021
    Assignee: Novelis Inc.
    Inventors: Milan Felberbaum, Sazol Kumar Das, Aurele Mariaux, Duane E. Bendzinski, Cyrille Bezencon, Simon William Barker, Corrado Bassi, Rajeev G. Kamat, Tudor Piroteala, Rajasekhar Talla, Robert Bruce Wagstaff
  • Publication number: 20200377976
    Abstract: Provided herein are ultra-high strength aluminum alloys and products prepared therefrom, along with methods of processing the ultra-high strength aluminum alloys. The aluminum alloys described herein are high solute alloys, including significant amounts of zinc (Zn), magnesium (Mg), copper (Cu), and other elements in addition to aluminum. The aluminum alloys described herein are amenable to post-aging processing without cracking.
    Type: Application
    Filed: May 8, 2020
    Publication date: December 3, 2020
    Applicant: Novelis Inc.
    Inventors: Sazol Kumar Das, Rajeev G. Kamat, Samuel Robert Wagstaff, Simon William Barker, Rajasekhar Talla, Tudor Piroteala
  • Patent number: 10837086
    Abstract: The present disclosure generally provides 6xxx series aluminum alloys and methods of making the same, such as through casting and rolling. The disclosure also provides products made from such alloys. The disclosure also provides various end uses of such products, such as in automotive, transportation, electronics, aerospace, and industrial applications, among others.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: November 17, 2020
    Assignee: NOVELIS INC.
    Inventors: Sazol Kumar Das, Rajeev G. Kamat, Milan Felberbaum
  • Publication number: 20200307160
    Abstract: Provided herein are new clad aluminum alloy products and methods of making these alloys. These alloy products possess a combination of strength and other key attributes, such as corrosion resistance, formability, and joining capabilities. The alloy products can be used in a variety of applications, including automotive, transportation, and electronics applications.
    Type: Application
    Filed: June 15, 2020
    Publication date: October 1, 2020
    Applicant: Novelis Inc.
    Inventors: Rajeev G. Kamat, Hashem Mousavi-Anijdan, Rahul Vilas Kulkarni, Juergen Timm, Corrado Bassi, Robert Bruce Wagstaff, Guillaume Florey, Cyrille Bezencon, Samuel R. Wagstaff, David Leyvraz
  • Patent number: 10730266
    Abstract: Provided herein are new clad aluminum alloy products and methods of making these alloys. These alloy products possess a combination of strength and other key attributes, such as corrosion resistance, formability, and joining capabilities. The alloy products can be used in a variety of applications, including automotive, transportation, and electronics applications.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: August 4, 2020
    Assignee: NOVELIS INC.
    Inventors: Rajeev G. Kamat, Hashem Mousavi-Anijdan, Rahul Vilas Kulkarni, Juergen Timm, Corrado Bassi, Robert Bruce Wagstaff, Guillaume Florey, Cyrille Bezencon, Samuel R. Wagstaff, David Leyvraz
  • Patent number: 10662514
    Abstract: Provided herein are anodized quality AA6xxx series aluminum alloy sheets and methods for making anodized quality AA6xxx series aluminum alloy sheets. Also described herein are products prepared from the anodized quality AA6xxx series aluminum alloy sheets. Such products include consumer electronic products, consumer electronic product parts, architectural sheet products, architectural sheet product parts, and automobile body parts.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: May 26, 2020
    Assignee: NOVELIS INC.
    Inventors: Alok Gupta, Daehoon Kang, Rajeev G. Kamat, Devesh Mathur
  • Publication number: 20200149141
    Abstract: Described herein are methods of processing heat treatable aluminum alloys using an accelerated aging step, along with aluminum alloy products prepared according to the methods. The methods of processing the heat treatable alloys described herein provide a more efficient method for producing aluminum alloy products having the desired strength and formability properties. For example, conventional methods of processing alloys can require 24 hours of aging. The methods described herein, however, substantially reduce the aging time, often requiring eight hours or less of aging time.
    Type: Application
    Filed: November 11, 2019
    Publication date: May 14, 2020
    Applicant: Novelis Inc.
    Inventors: Cedric Wu, Rajeev G. Kamat, Yudie Yuan, David Leyvraz, Julie Richard, Rahul Vilas Kulkarni, Peter Lloyd Redmond, Yi Wang, Rajasekhar Talla, Rashmi Ranjan Mohanty, Tudor Piroteala
  • Patent number: 10648066
    Abstract: The present invention relates to the reduction of artificial aging time of 7xxx series alloys. Currently, the artificial aging times for typical 7xxx series alloy can be as long as 24 hrs. The current invention allows for a significant reduction of aging times, thereby saving time, energy, money and storage space hence increasing the productivity.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: May 12, 2020
    Assignee: NOVELIS INC.
    Inventors: Rajeev G. Kamat, Hashem Mousavi-Anijdan, Rahul Kulkarni, Mario A. Salgado-Ordorica
  • Publication number: 20200123641
    Abstract: Described herein are formable, high strength aluminum alloy products and methods of preparing and processing the same. The methods of preparing and processing the aluminum alloy products include casting an aluminum alloy and performing tailored rolling and downstream thermal processing steps. The resulting aluminum alloy products possess high strength and formability properties.
    Type: Application
    Filed: October 23, 2019
    Publication date: April 23, 2020
    Applicant: Novelis Inc.
    Inventors: Sazol Kumar Das, Rajeev G. Kamat, Rajasekhar Talla, Tudor Piroteala
  • Publication number: 20200095664
    Abstract: Disclosed are high-strength aluminum alloys and methods of making and processing such alloys. More particularly, disclosed is a 6XXX series aluminum alloy exhibiting improved mechanical strength, formability, corrosion resistance, and anodized qualities. An exemplary method includes homogenizing, hot rolling, solutionizing, and quenching. In some cases, the processing steps can further include annealing and/or cold rolling.
    Type: Application
    Filed: November 27, 2019
    Publication date: March 26, 2020
    Applicant: Novelis Inc.
    Inventors: Wei Wen, Hany Ahmed, Rajeev G. Kamat, Corrado Bassi, Guillaume Florey, Cyrille Bezencon, Juergen Timm, David Leyvraz, Aude Despois, Sazol Kumar Das
  • Publication number: 20200024713
    Abstract: Provided herein are highly formable aluminum alloys and methods of making the same. The highly formable aluminum alloys described herein can be prepared from recycled materials without significant addition of primary aluminum alloy material. The aluminum alloys are prepared by casting an aluminum alloy that can include such recycled materials and processing the resulting cast aluminum alloy article. Also described herein are methods of using the aluminum alloys and alloy products.
    Type: Application
    Filed: July 22, 2019
    Publication date: January 23, 2020
    Applicant: Novelis Inc.
    Inventors: Sazol Kumar Das, Matthew Heyen, Peter Evans, Martin Beech, ChangOok Son, Mark Marsh, Rajeev G. Kamat, Rainer Kossak, David Fryatt, David Scott Fisher, Guillaume Florey, Cyrille Bezencon, Juergen Timm
  • Publication number: 20200010941
    Abstract: Described are metal products having spatially non-uniform strength and formability profiles. The spatial non-uniformity of these properties may be achieved by heat-treating the metal product in a spatially non-uniform fashion, such that different portions of the metal product exhibit different strength and formability characteristics. The metal products may be formed into stamped products, with strength and formability characteristics customized to allow for suitable drawing during the stamping process.
    Type: Application
    Filed: July 5, 2019
    Publication date: January 9, 2020
    Applicant: Novelis Inc.
    Inventors: Peter Lloyd Redmond, Rajeev G. Kamat, Aude Celine Despois, Sazol Kumar Das, Richard Burrows
  • Publication number: 20190352759
    Abstract: Provided are new high strength 6xxx and 7xxx series aluminum alloys and methods of making aluminum products thereof. These aluminum products may be used to fabricate components which may replace steel in a variety of applications including the automotive industry. In some examples, the disclosed high strength 6xxx and 7xxx series aluminum alloys can replace high strength steels with aluminum. In one example, steels having a yield strength below 450 MPa may be replaced with the disclosed 6xxx or 7xxx series aluminum alloys without the need for major design modifications.
    Type: Application
    Filed: May 14, 2019
    Publication date: November 21, 2019
    Applicant: Novelis Inc.
    Inventors: Aude Despois, Guillaume Florey, Rajeev G. Kamat, Cyrille Bezencon, David Leyvraz, Samuel R. Wagstaff
  • Publication number: 20190119799
    Abstract: Described herein are high-strength, highly formable aluminum alloys and methods of making and processing such alloys. The aluminum alloys described herein contain transition metal alloying elements to provide high strength and high formability. The processing method includes multi-stage homogenization, hot and cold rolling, and solutionization steps. Also described are methods of using the aluminum alloys.
    Type: Application
    Filed: October 23, 2018
    Publication date: April 25, 2019
    Applicant: Novelis Inc.
    Inventors: Sazol Kumar Das, Aude Celine Despois, Rajeev G. Kamat
  • Publication number: 20190062886
    Abstract: The present disclosure generally provides 7xxx series aluminum alloy products in a stable T4 temper. The disclosure also provides methods of making such products, for example, using processes that include a combination of casting, rolling, solutionizing, quenching, reheating, and slow cooling. The disclosure also provides various end uses of such products, such as in automotive, transportation, electronics, and industrial applications.
    Type: Application
    Filed: August 28, 2018
    Publication date: February 28, 2019
    Applicant: Novelis Inc.
    Inventors: David Leyvraz, Samuel R. Wagstaff, Steve Clerc, Rajasekhar Talla, Rajeev G. Kamat
  • Publication number: 20190055637
    Abstract: The present disclosure generally provides aluminum alloy products having selectively recrystallized microstructure at one or more surfaces of the product. The disclosure also provides articles of manufacture made from such products, and methods of making such products, such as through casting and rolling. The disclosure also provides various end uses of such products, such as in automotive, transportation, electronics, and industrial applications.
    Type: Application
    Filed: August 20, 2018
    Publication date: February 21, 2019
    Applicant: Novelis Inc.
    Inventors: Cedric Wu, Rajeev G. Kamat, Yi Wang, Samuel Robert Wagstaff, Rashmi Ranjan Mohanty, Rahul Vilas Kulkarni, Duane E. Bendzinski, Yudie Yuan
  • Publication number: 20180340244
    Abstract: The present disclosure generally provides 6xxx series aluminum alloys and methods of making the same, such as through casting and rolling. The disclosure also provides products made from such alloys. The disclosure also provides various end uses of such products, such as in automotive, transportation, electronics, aerospace, and industrial applications, among others.
    Type: Application
    Filed: May 25, 2018
    Publication date: November 29, 2018
    Applicant: Novelis Inc.
    Inventors: Sazol Kumar Das, Rajeev G. Kamat, Milan Felberbaum