Patents by Inventor Chins Chinnasamy

Chins Chinnasamy 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: 20210350961
    Abstract: A soft magnetic alloy having a good combination of formability and magnetic properties is disclosed. The alloy has the formula Fe100-a-b-c-d-e-fSiaMbLcM?dM?eRf wherein M is Cr and/or Mo; L is Co and/or Ni; M? is one or more of Al, Mn, Cu, Ge, Ga; M? is one or more of Ti, V, Hf, Nb, W; and R is one or more of B, Zr, Mg, P, Ce. The elements Si, M, L, M?, M?, and R have the following ranges in weight percent: Si ??4-7 M 0.1-7 L 0.1-10 M? up to 7 M? up to 7 R up to 1 The balance of the alloy is iron and usual impurities. A thin-gauge article made from the alloy and a method of making the thin-gauge article are also disclosed.
    Type: Application
    Filed: July 26, 2021
    Publication date: November 11, 2021
    Inventors: Chins Chinnasamy, Samuel J. Kernion, Eric Fitterling, Alberto Polar-Rosas, Tao Wang
  • Patent number: 11114226
    Abstract: A magnetic iron alloy and process of making the same. The alloy includes iron, approximately 2 wt. % to approximately 8 wt. % cobalt, approximately 0.05 wt. % to approximately 5 wt. % manganese, and approximately 0.05 wt. % to approximately 5 wt. % silicon. The alloy may also include up to approximately 0.3 wt. % chromium, up to approximately 2 wt. % vanadium, up to approximately 1 wt. % nickel, up to approximately 0.05 wt. % niobium, and up to approximately 0.02 wt. % carbon.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: September 7, 2021
    Assignee: CARPENTER TECHNOLOGY CORPORATION
    Inventors: Tanjore V. Jayaraman, Chins Chinnasamy, Samuel Kernion, Eric Fitterling
  • Publication number: 20210166848
    Abstract: An Fe-base, soft magnetic alloy is disclosed. The alloy has the general formula Fe100-a-b-c-d-x-y MaM?bM?cM??d Px Mny where M is Co and/or Ni, M? is one or more of Zr, Nb, Cr, Mo, Hf, Sc, Ti, V, W, and Ta, M? is one or more of B, C, Si, and Al, and M?? is selected from the group consisting of Cu, Pt, Ir, Zn, Au, and Ag. The subscripts a, b, c, d, x, and y represent the atomic proportions of the elements and have the following atomic percent ranges: 0?a?10, 0?b?7, 5?c?20, 0?d?5, 0.1?x?15, and 0.1?y?5. The balance of the alloy is iron and usual impurities. Alloy powder, a magnetic article made therefrom, and an amorphous metal article made from the alloy are also disclosed.
    Type: Application
    Filed: February 4, 2021
    Publication date: June 3, 2021
    Inventors: Chins Chinnasamy, Samuel J. Kernion, James F. Scanlon
  • Publication number: 20210142933
    Abstract: A powder including a plurality of particulates, each particulate including a soft magnetic metallic core coated with a continuous dielectric coating having a thickness selected from a range of 100 nanometers to 100 micrometers. The particulates have a mean particle size selected from a range of 100 nanometers to 250 micrometers. Methods for forming the powder are disclosed. A soft magnetic composite component includes a soft magnetic material in a dielectric matrix, wherein (i) the soft magnetic material comprises a plurality of particulates comprising metallic cores, (ii) each metallic core is coated by a continuous dielectric coating covering >90% of a surface area of the metallic core, (iii) the metallic cores are electrically isolated from each other, and (iv) the dielectric coatings of adjacent metallic cores are consolidated together. Methods for formation of the soft magnetic component by additive manufacturing and hot isostatic pressing are disclosed.
    Type: Application
    Filed: November 10, 2020
    Publication date: May 13, 2021
    Inventors: Francis William Herbert, Chins Chinnasamy, James William Sears, Christopher Phillip Allen, Jaydip Das, Nir Vaks
  • Publication number: 20210057149
    Abstract: A bonded soft magnet object comprising bonded soft magnetic particles of an iron-containing alloy having a soft magnet characteristic, wherein the bonded soft magnetic particles have a particle size of at least 200 nm and up to 100 microns. Also described herein is a method for producing the bonded soft magnet by indirect additive manufacturing (IAM), such as by: (i) producing a soft magnet preform by bonding soft magnetic particles with an organic binder, wherein the magnetic particles have an iron-containing alloy composition with a soft magnet characteristic, and wherein the particles of the soft magnet material have a particle size of at least 200 nm and up to 100 microns; (ii) subjecting the preform to an elevated temperature sufficient to remove the organic binder to produce a binder-free preform; and (iii) sintering the binder-free preform at a further elevated temperature to produce the bonded soft magnet.
    Type: Application
    Filed: August 21, 2020
    Publication date: February 25, 2021
    Inventors: Mariappan Parans Paranthaman, Corson L. Cramer, Peeyush Nandwana, Amelia M. Elliott, Chins Chinnasamy
  • Publication number: 20200005975
    Abstract: A magnetic iron alloy and process of making the same. The alloy includes iron, approximately 2 wt. % to approximately 8 wt. % cobalt, approximately 0.05 wt. % to approximately 5 wt. % manganese, and approximately 0.05 wt. % to approximately 5 wt. % silicon. The alloy may also include up to approximately 0.3 wt. % chromium, up to approximately 2 wt. % vanadium, up to approximately 1 wt. % nickel, up to approximately 0.05 wt. % niobium, and up to approximately 0.02 wt. % carbon.
    Type: Application
    Filed: September 4, 2019
    Publication date: January 2, 2020
    Applicant: Carpenter Technology Corporation
    Inventors: Tanjore V. Jayaraman, Chins Chinnasamy, Samuel Kernion, Eric Fitterling
  • Publication number: 20180336982
    Abstract: A soft magnetic alloy having a good combination of formability and magnetic properties is disclosed. The alloy has the formula Fe100-a-b-c-d-e-fSiaMbLcM?dM?eRf wherein M is Cr and/or Mo; L is Co and/or Ni; M? is one or more of Al, Mn, Cu, Ge, Ga; M? is one or more of Ti, V, Hf, Nb, W; and R is one or more of B, Zr, Mg, P, Ce. The elements Si, M, L, M?, M?, and R have the following ranges in weight percent: Si ?4-7 M 0.1-7? L 0.1-10 M? up to 7 M? up to 7 R up to 1 The balance of the alloy is iron and usual impurities. A thin-gauge article made from the alloy and a method of making the thin-gauge article are also disclosed.
    Type: Application
    Filed: May 17, 2018
    Publication date: November 22, 2018
    Inventors: Chins Chinnasamy, Samuel J. Kernion, Eric Fitterling, Alberto Polar-Rosas, Tao Wang
  • Publication number: 20180233258
    Abstract: An Fe-base, soft magnetic alloy is disclosed. The alloy has the general formula Fe100 a-b-c-d-x-y MaM?bM?cM??dPxMny where M is Co and/or Ni, M? is one or more of Zr, Nb, Cr, Mo, Hf, Sc, Ti, V, W, and Ta, M? is one or more of B, C, Si, and Al, and M?' is selected from the group consisting of Cu, Pt, Ir, Zn, Au, and Ag. The subscripts a, b, c, d, x, and y represent the atomic proportions of the elements and have the following atomic percent ranges: 0?a?10, 0?b?7, 5?c?20, 0?d?5, 0.1?x?15, and 0.1?y?5. The balance of the alloy is iron and usual impurities. Alloy powder, a magnetic article made therefrom, and an amorphous metal article made from the alloy are also disclosed.
    Type: Application
    Filed: February 15, 2018
    Publication date: August 16, 2018
    Inventors: Chins Chinnasamy, Samuel J. Kernion, James F. Scanlon
  • Patent number: 9064625
    Abstract: Methods of manufacturing laminated, rare earth, permanent magnets with dielectric layers having increased electrical resistivity and improved mechanical strength suitable for use in high performance, rotating machines comprising sequentially laminating permanent magnet layers with transition and/or diffusion reaction layers; wherein the transition and/or diffusion reaction layers surround sulfide-based dielectric layers, thereby avoiding direct contact between the dielectric layers with permanent magnet layers.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: June 23, 2015
    Assignee: Electron Energy Corporation
    Inventors: Jinfang Liu, Chins Chinnasamy, Joshua L. Bender, Melania Marinescu
  • Publication number: 20130038164
    Abstract: Laminated, rare earth, permanent magnets with one or more dielectric layers, suitable for use in high performance, rotating machines comprising: sequential laminates of permanent magnet layers and dielectric layers separated by transition and/or diffusion reaction layers, where said sequentially laminated magnets indicate increased electrical resistivity with improved mechanical strength.
    Type: Application
    Filed: August 9, 2011
    Publication date: February 14, 2013
    Inventors: Jinfang Liu, Chins Chinnasamy, Joshua L. Bender, Melania Marinescu
  • Publication number: 20130038160
    Abstract: Laminated, mechanically strong, rare earth, permanent magnets with dielectric layers having increased electrical resistivity and improved mechanical strength suitable for use in high performance, rotating machines comprising sequential laminates of permanent magnet layers and transition and/or diffusion reaction layers; wherein the transition and/or diffusion reaction layers surround sulfide-based dielectric layers, thereby avoiding direct contact between the dielectric layers with permanent magnet layers.
    Type: Application
    Filed: August 9, 2011
    Publication date: February 14, 2013
    Inventors: Jinfang Liu, Chins Chinnasamy, Joshua L. Bender, Melania Marinescu
  • Publication number: 20130038159
    Abstract: Methods of manufacturing laminated, rare earth, permanent magnets with dielectric layers having increased electrical resistivity and improved mechanical strength suitable for use in high performance, rotating machines comprising sequentially laminating permanent magnet layers with transition and/or diffusion reaction layers; wherein the transition and/or diffusion reaction layers surround sulfide-based dielectric layers, thereby avoiding direct contact between the dielectric layers with permanent magnet layers.
    Type: Application
    Filed: August 9, 2011
    Publication date: February 14, 2013
    Inventors: Jinfang Liu, Chins Chinnasamy, Joshua L. Bender, Melania Marinescu