Patents by Inventor Rashmi Ranjan Mohanty

Rashmi Ranjan Mohanty 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).

  • Publication number: 20230413125
    Abstract: Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may communicate with a first network device in a first communications system (e.g., a non-standalone (NSA) system) prior to initiating a handover to a second communications system (e.g., a standalone (SA) system). In some examples, the UE may receive a first tracking reference signal (TRS) from the first network device using a first transmission configuration indicator (TCI) state. The first network device may include an indication of the first TCI state in a control message. The UE may initiate a handover from the first network device to the second network device. Subsequent to the handover, the UE may receive a second TRS from the second network device. The UE may receive the second TRS using the first TCI state based on determining that one or more antenna port configuration conditions are satisfied.
    Type: Application
    Filed: December 14, 2020
    Publication date: December 21, 2023
    Inventors: Chinmay Shankar VAZE, Chun-Hao HSU, Priyanka YENIGALLA, Vishnu Namboodiri KARAKKAD KESAVAN NAMBOODIRI, Zhanyi LIU, Jing LI, Rashmi Ranjan MOHANTY
  • Patent number: 11814713
    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: Grant
    Filed: November 11, 2019
    Date of Patent: November 14, 2023
    Assignee: 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: 11788178
    Abstract: Provided herein are highly-formable aluminum alloys and methods of making such alloys. The method of preparing aluminum alloys described herein can include a low final cold reduction step and/or an optional inter-annealing step to produce randomly distributed crystallographic texture components that produce an isotropic aluminum alloy product exhibiting improved formability and deep drawability. The methods described herein result in aluminum alloy microstructures having a balance of alpha fibers and beta fibers that promote improved formability of aluminum alloy sheets. The resulting improvements in quality allow for shaping processes with reduced rates of spoilage.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: October 17, 2023
    Assignee: Novelis Inc.
    Inventors: Sazol Kumar Das, Matthew Josef Heyen, ChangOok Son, Rashmi Ranjan Mohanty, Guillaume Florey
  • Patent number: 11618931
    Abstract: A method for producing a high strength steel sheet having a yield strength YS of at least 850 MPa, a tensile strength TS of at least 1180 MPa, a total elongation of at least 14% and a hole expansion ratio HER of at least 30%. The chemical composition of the steel contains: 0.15%?C?0.25%, 1.2%?Si?1.8%, 2%?Mn?2.4%, 0.1%?Cr?0.25%, Nb?0.05%, Ti?0.05%, Al?0.50%, the remainder being Fe and unavoidable impurities. The sheet is annealed at an annealing temperature TA higher than Ac3 but less than 1000° C. for more than 30 s, by cooling it to a quenching temperature QT between 275° C. and 325° C., at a cooling speed sufficient to have, just after quenching, a structure consisting of austenite and at least 50% of martensite, the austenite content en.) being such that the final structure can contain between 3% and 15% of residual austenite and between 85 and 97% of the sum of martensite and bainite, without ferrite, heated to a partitioning temperature PT between 420° C. and 470° C.
    Type: Grant
    Filed: July 3, 2015
    Date of Patent: April 4, 2023
    Assignee: ARCELORMITTAL
    Inventors: Rashmi Ranjan Mohanty, Hyun Jo Jun, Dongwei Fan
  • Publication number: 20230082861
    Abstract: Aluminum alloy products having a bulk and a micro-grained subsurface structure are described. The aluminum alloy products may exhibit superior bonding character and may comprise or have a silicon-containing layer thereon. The bulk may include a matrix including grains of an aluminum alloy and may comprise aluminum and one or more alloying elements such as zinc, magnesium, copper, chromium, silicon, iron, or manganese. The micro-grained subsurface structure may be substantially devoid of one or more defects (e.g., voids, transfer cracks, or fissures) or organics, oils, hydrocarbons, soils, inorganic residues, rolled-in oxides, or anodic oxides, which may commonly be present in rolled near-surface microstructures. The micro-grained subsurface structure may include or have thereon a first oxide layer having a thickness of from 1 nm to 20 nm. Methods of making aluminum alloy products are also described.
    Type: Application
    Filed: February 18, 2021
    Publication date: March 16, 2023
    Applicant: Novelis Inc.
    Inventors: THERESA ELIZABETH MACFARLANE, SAZOL KUMAR DAS, RASHMI RANJAN MOHANTY, ALP MANAVBASI, YUDIE YUAN, THOMAS J. BECK
  • Publication number: 20230074427
    Abstract: Described are aluminum alloy products and methods of making aluminum alloy products in which the aluminum alloy products have carefully controlled intermetallic particle density and particle size. Such aluminum alloy products may exhibit favorable formability. Control over intermetallic particle size and density may allow for use of high amounts of recycled source content in aluminum alloy products.
    Type: Application
    Filed: January 20, 2021
    Publication date: March 9, 2023
    Applicant: Novelis Inc.
    Inventors: Daehoon Kang, Kyle David Dasch, Mitchell Glenn Roux, John Min Ho, Sazol Kumar Das, Rashmi Ranjan Mohanty, Dewei Zhu, Stephen Buckingham, Amanda Owens
  • Patent number: 11555226
    Abstract: A method for producing a high strength uncoated steel sheet having an improved strength and an improved formability, including the steps of: providing an uncoated steel sheet; annealing the sheet at an annealing temperature TA higher than 865° C. but less than 1000° C. for a time of more than 30 s; cooling the sheet down to a quenching temperature QT between 310° C. and 375° C., at a cooling speed of at least 30° C./s; heating the sheet up to a partitioning temperature PT between 370° C. and 470° C. and maintaining the sheet at the partitioning temperature for a partitioning time Pt between 50 s and 150 s; and cooling the sheet down to the room temperature.
    Type: Grant
    Filed: July 3, 2015
    Date of Patent: January 17, 2023
    Assignee: ARCELORMITTAL
    Inventors: Rashmi Ranjan Mohanty, Hyun Jo Jun, Dongwei Fan, Pavan K. C. Venkatasurya
  • Publication number: 20220394714
    Abstract: A method of wireless communication performed at a user equipment (UE), includes transmitting, to a network node, a first indication of a first UE radio capability, the first UE radio capability indicating support for a group of evolved universal terrestrial radio access network (E-UTRAN) new radio (NR) dual connectivity (EN-DC) band combinations. The method also includes receiving, from the network node, an indication of an active EN-DC band combination based on transmitting the first indication. The method further includes transmitting, to the network node, a second indication of a second UE radio capability based on an actual data throughput metric associated with the active EN-DC band combination satisfying a failure condition. The second UE radio capability may indicate support for one or more non-active EN-DC combinations. Each non-active EN-DC combination may be associated with a potential data throughput metric that is greater than a data throughput threshold value.
    Type: Application
    Filed: May 24, 2022
    Publication date: December 8, 2022
    Inventors: Mona AGRAWAL, Arvind Vardarajan SANTHANAM, Girish KHANDELWAL, Rashmi Ranjan MOHANTY, Vijay MARWAH, Daniel AMERGA, Sanjeev ATHALYE, Marc AZAR, Joe THOMAS, Brian Clarke BANISTER
  • Patent number: 11492676
    Abstract: A method is for producing a high strength coated steel sheet having a yield stress YS>800 MPa, a tensile strength TS>1180 MPa, and improved formability and ductility. The steel contains: 15%?C?0.25%, 1.2%?Si?1.8%, 2%?Mn?2.4%, 0.1%?Cr?0.25%, Al?0.5%, the remainder being Fe and unavoidable impurities. The sheet is annealed at a temperature higher than Ac3 and lower than 1000° C. for a time of more than 30 s, then quenched by cooling it to a quenching temperature QT between 250° C. and 350° C., to obtain a structure consisting of at least 60% of martensite and a sufficient austenite content such that the final structure contains 3% to 15% of residual austenite and 85% to 97% of martensite and bainite without ferrite, then heated to a partitioning temperature PT between 430° C. and 480° C. and maintained at this temperature for a partitioning time Pt between 10 s and 90 s, then hot dip coated and cooled to the room temperature.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: November 8, 2022
    Assignee: ARCELORMITTAL
    Inventors: Rashmi Ranjan Mohanty, Hyun Jo Jun, Dongwei Fan
  • Publication number: 20220298598
    Abstract: A steel sheet made of a steel having a chemical composition containing in weight %: 0.13%?C?0.22%, 1.2%?Si?1.8%, 1.8%?Mn?2.2%, 0.10%?Mo?0.20%, Nb?0.05%, Ti?0.05%, Al?0.5%, a remainder being Fe and unavoidable impurities. The steel sheet has a yield strength of at least 850 MPa, a tensile strength of at least 1180 MPa, a total elongation of at least 13% and a hole expansion ratio HER of at least 30%.
    Type: Application
    Filed: June 8, 2022
    Publication date: September 22, 2022
    Inventors: Rashmi Ranjan MOHANTY, Hyun Jo JUN, Dongwei FAN, Pavan K. C. VENKATASURYA
  • Patent number: 11421309
    Abstract: Described herein are novel 7xxx series aluminum alloys. The alloys exhibit high strength. The alloys can be used in a variety of applications, including automotive, transportation, electronics, aerospace, and industrial applications. Also described herein are methods of making and processing the alloys. Further described herein are methods of producing a metal sheet, which include casting an aluminum alloy as described herein to form an ingot, homogenizing the ingot, hot rolling the ingot to produce a hot band, and cold rolling the hot band to a metal sheet of final gauge.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: August 23, 2022
    Assignee: Novelis Inc.
    Inventors: Rajeev G. Kamat, Dhruba J. Chakrabarti, Rashmi Ranjan Mohanty, Rahul Vilas Kulkarni, Duane E. Bendzinski, Juergen Timm
  • Patent number: 10995383
    Abstract: A method for producing a high strength coated steel sheet having a yield strength YS of at least 800 MPa, a tensile strength TS of >1180 MPa, a total elongation >14% and a hole expansion ratio HER >30%. The steel contains in weight %: 0.13%?C?0.22%, 1.2%?Si?1.8%, 1.8%?Mn?2.2%, 0.10%?Mo?0.20%, Nb?0.05%, Al?0.5%, the remainder being Fe and unavoidable impurities. The sheet is annealed at a temperature TA higher than Ac3 but less than 1000° C. for more than 30 s, then quenched by cooling temperature QT between 325° C. and 375° C., at a cooling speed sufficient to obtain a structure consisting of austenite and at least 60% of martensite, the austenite content being such that the final structure can contain between 3% and 15% of residual austenite and between 85 and 97% of the sum of martensite and bainite, without ferrite, then heated to a partitioning temperature PT between 430° C. and 480° C.
    Type: Grant
    Filed: July 3, 2015
    Date of Patent: May 4, 2021
    Assignee: ARCELORMITTAL
    Inventors: Dongwei Fan, Hyun Jo Jun, Rashmi Ranjan Mohanty
  • Publication number: 20210095357
    Abstract: A coated steel sheet includes a chemical composition including in weight %: 0.13%?C ?0.22%; 1.2%?Si?1.8%; 1.8%?Mn?2.2%; 0.10%?Mo?0.20%; Nb?0.05%; Al?0.5%; Ti?0.05%; and a remainder being Fe and unavoidable impurities. A structure of the steel sheet consists of, by volume fraction, 3% to 15% of residual austenite and 85% to 97% of martensite and bainite. The structure includes at least 65% of martensite and does not including ferrite. At least one face of the coated steel sheet includes a metallic coating. The steel sheet has a yield strength of at least 800 MPa, a tensile strength of at least 1180 MPa, a total elongation of at least 14% and a hole expansion ratio HER of at least 30%.
    Type: Application
    Filed: December 8, 2020
    Publication date: April 1, 2021
    Inventors: Dongwei Fan, Hyun Jo Jun, Rashmi Ranjan Mohanty
  • Patent number: 10907232
    Abstract: A method for producing a high strength coated steel sheet having an improved ductility and an improved formability, the chemical composition of the steel containing: 0.13%?C?0.22%, 1.9%?Si?2.3%, 2.4%?Mn?3%, Al?0.5%, Ti<0.05%, Nb<0.05%, the remainder being Fe and unavoidable impurities. The sheet is annealed at temperature TA higher than Ac3 but less than 1000° C. for a time of more than 30 s, quenched by cooling to a quenching temperature QT between 200° C. and 280° C. in order to obtain a structure consisting of austenite and at least 50% of martensite, the austenite content being such that the final structure can contain between 3% and 15% of residual austenite and between 85% and 97% of the sum of martensite and bainite, without ferrite, heated up to a partitioning temperature PT between 430° C. and 490° C. and maintained at this temperature for a time Pt between 10 s and 100 s, hot dip coated and cooled to the room temperature.
    Type: Grant
    Filed: July 3, 2015
    Date of Patent: February 2, 2021
    Assignee: ARCELORMITTAL
    Inventors: Dongwei Fan, Hyun Jo Jun, Rashmi Ranjan Mohanty, Pavan K. C. Venkatasurya
  • Publication number: 20200347477
    Abstract: A method is for producing a high strength coated steel sheet having a yield stress YS>800 MPa, a tensile strength TS>1180 MPa, and improved formability and ductility. The steel contains: 15%?C?0.25%, 1.2%?Si?1.8%, 2%?Mn?2.4%, 0.1%?Cr?0.25%, Al?0.5%, the remainder being Fe and unavoidable impurities. The sheet is annealed at a temperature higher than Ac3 and lower than 1000° C. for a time of more than 30 s, then quenched by cooling it to a quenching temperature QT between 250° C. and 350° C., to obtain a structure consisting of at least 60% of martensite and a sufficient austenite content such that the final structure contains 3% to 15% of residual austenite and 85% to 97% of martensite and bainite without ferrite, then heated to a partitioning temperature PT between 430° C. and 480° C. and maintained at this temperature for a partitioning time Pt between 10 s and 90 s, then hot dip coated and cooled to the room temperature.
    Type: Application
    Filed: July 16, 2020
    Publication date: November 5, 2020
    Inventors: Rashmi Ranjan Mohanty, Hyun Jo Jun, Dongwei Fan
  • 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
  • Publication number: 20200023417
    Abstract: Provided herein are highly-formable aluminum alloys and methods of making such alloys. The method of preparing aluminum alloys described herein can include a low final cold reduction step and/or an optional inter-annealing step to produce randomly distributed crystallographic texture components that produce an isotropic aluminum alloy product exhibiting improved formability and deep drawability. The methods described herein result in aluminum alloy microstructures having a balance of alpha fibers and beta fibers that promote improved formability of aluminum alloy sheets. The resulting improvements in quality allow for shaping processes with reduced rates of spoilage.
    Type: Application
    Filed: July 22, 2019
    Publication date: January 23, 2020
    Applicant: Novelis Inc.
    Inventors: Sazol Kumar Das, Matthew Josef Heyen, ChangOok Son, Rashmi Ranjan Mohanty, Guillaume Florey
  • Patent number: 10472708
    Abstract: A method of hot forming an aluminum alloy component may include heating the aluminum alloy component in a heating furnace to a solutionizing temperature, cooling the aluminum alloy component to a desired forming temperature, deforming the aluminum alloy component into a desired shape in a forming device while the aluminum alloy component is at the desired forming temperature, maintaining a constant temperature during the deformation of the aluminum alloy component, and quenching the aluminum alloy component to a low temperature below a solvus temperature.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: November 12, 2019
    Assignee: NOVELIS INC.
    Inventors: Rashmi Ranjan Mohanty, Duane E. Bendzinski, Rahul Vilas Kulkarni
  • Publication number: 20190169726
    Abstract: A method of hot forming an aluminum alloy component may include heating the aluminum alloy component in a heating furnace to a solutionizing temperature, cooling the aluminum alloy component to a desired forming temperature, deforming the aluminum alloy component into a desired shape in a forming device while the aluminum alloy component is at the desired forming temperature, maintaining a constant temperature during the deformation of the aluminum alloy component, and quenching the aluminum alloy component to a low temperature below a solvus temperature.
    Type: Application
    Filed: February 4, 2019
    Publication date: June 6, 2019
    Applicant: Novelis Inc.
    Inventors: Rashmi Ranjan Mohanty, Duane E. Bendzinski, Rahul Vilas Kulkarni
  • 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