Patents by Inventor Matthew A. Simpson

Matthew A. Simpson 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: 20050254190
    Abstract: A structural component is provided that includes a substrate and a ceramic layer deposited thereon. The ceramic layer is formed of a ceramic electrostatic discharge dissipative material and has an electrical resistivity within a range of about 103 to about 1011 ohm-cm.
    Type: Application
    Filed: July 22, 2005
    Publication date: November 17, 2005
    Applicant: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Oh-Hun Kwon, Matthew Simpson
  • Patent number: 6946417
    Abstract: Aspects of the present invention may be found in an electrostatic dissipative ceramic component having a stabilized zirconia base, a surface resistivity between 1×105 and 1×1012 ohms per square and at least 2 percent by volume scattering material. The stabilized zirconia may be present in amounts between 60 and 95 weight percent. Further aspects of the invention may be found in an electrostatic dissipative ceramic material having stabilized zirconia, a resistivity modifier, and a scattering material. The stabilized zirconia may be present in amounts between 60 and 95 weight percent of the ceramic material. The resistivity modifier may be present in amounts between 5 and 30 weight percent. The scattering material may comprise at least 2 volume percent of the electrostatic dissipative ceramic material. The component may be used in the manufacturing of electronic component such as hard drives.
    Type: Grant
    Filed: May 21, 2003
    Date of Patent: September 20, 2005
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventor: Matthew Simpson
  • Patent number: 6884514
    Abstract: A method of depositing a coating is disclosed, which method calls for providing a substrate, and thermally spraying a ceramic powder thereon to form a coating. The ceramic powder has a garnet crystal structure phase, and the thermal spraying in turn forms a coating on the substrate that includes a garnet crystal structure phase.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: April 26, 2005
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Matthew A. Simpson, Dominique Billieres, Gérard Main, Jean-Michel Drouin
  • Publication number: 20050042483
    Abstract: An article is provided that includes a substrate and a corrosion-resistant coating provided on the substrate. The substrate generally consists essentially of alumina, and the corrosion-resistant coating is provided so as to directly contact the substrate without the provision of intervening layers between the substrate and the corrosion-resistant coating, such as reaction products provided by high-temperature treatment processes. The corrosion-resistant coating generally consists essentially of a rare earth oxide, and has an adhesion strength not less than about 15 MPa. According to particular embodiments, the article is a ceramic component utilized and implemented in a semiconductor processing apparatus for processing semiconductor wafers.
    Type: Application
    Filed: August 22, 2003
    Publication date: February 24, 2005
    Inventors: Dominique Billieres, Matthew Simpson
  • Publication number: 20040235639
    Abstract: Aspects of the present invention may be found in an electrostatic dissipative ceramic component having a stabilized zirconia base, a surface resistivity between 1×105 and 1×1012 ohms per square and at least 2 percent by volume scattering material. The stabilized zirconia may be present in amounts between 60 and 95 weight percent. Further aspects of the invention may be found in an electrostatic dissipative ceramic material having stabilized zirconia, a resistivity modifier, and a scattering material. The stabilized zirconia may be present in amounts between 60 and 95 weight percent of the ceramic material. The resistivity modifier may be present in amounts between 5 and 30 weight percent. The scattering material may comprise at least 2 volume percent of the electrostatic dissipative ceramic material. The component may be used in the manufacturing of electronic component such as hard drives.
    Type: Application
    Filed: May 21, 2003
    Publication date: November 25, 2004
    Applicant: Saint-Gobain Ceramics & Plastics, Inc.
    Inventor: Matthew Simpson
  • Publication number: 20040183135
    Abstract: A structural component is provided that includes a substrate and a ceramic layer deposited thereon. The ceramic layer is formed of a ceramic electrostatic discharge dissipative material and has an electrical resistivity within a range of about 103 to about 1011 ohm-cm.
    Type: Application
    Filed: March 19, 2003
    Publication date: September 23, 2004
    Inventors: Oh-Hun Kwon, Matthew A. Simpson
  • Patent number: 6736704
    Abstract: A lapping carrier for machining a row of magneto-resistive elements is disclosed. The lapping carrier includes a plurality of movable elements, the movable elements terminating at an outer surface to form a generally planar mounting surface for a row of magneto-resistive elements. The lapping carrier is formed of a ceramic material. A method for lapping or machining a row of magneto-resistive elements is also disclosed.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: May 18, 2004
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Leo E. Kennedy, Oh-Hun Kwon, Matthew A. Simpson, Stanley C. Smith
  • Publication number: 20040079927
    Abstract: This invention relates to a dense ceramics having ESD dissipative characteristics, tunable volume and surface resistivities in semi-insulative range (103-1011 Ohm-cm), substantially pore free, high flexural strength, light colors, for desired ESD dissipation characteristics, structural reliability, high vision recognition, low wear and particulate contamination to be used as ESD dissipating tools, fixtures, load bearing elements, work surfaces, containers in manufacturing and assembling electrostatically sensitive microelectronic, electromagnetic, electro-optic components, devices and systems.
    Type: Application
    Filed: October 20, 2003
    Publication date: April 29, 2004
    Applicant: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Oh-Hun Kwon, Matthew A. Simpson, Roger J. Lin
  • Patent number: 6669871
    Abstract: This invention relates to a dense ceramics having ESD dissipative characteristics, tunable volume and surface resistivities in semi-insulative range (103-1011 Ohm-cm), substantially pore free, high flexural strength, light colors, for desired ESD dissipation characteristics, structural reliability, high vision recognition, low wear and particulate contamination to be used as ESD dissipating tools, fixtures, load bearing elements, work surfaces, containers in manufacturing and assembling electrostatically sensitive microelectronic, electromagnetic, electro-optic components, devices and systems.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: December 30, 2003
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Oh-Hun Kwon, Matthew A. Simpson, Roger J. Lin
  • Publication number: 20030199228
    Abstract: A lapping carrier for machining a row of magneto-resistive elements is disclosed. The lapping carrier includes a plurality of movable elements, the movable elements terminating at an outer surface to form a generally planar mounting surface for a row of magneto-resistive elements. The lapping carrier is formed of a ceramic material. A method for lapping or machining a row of magneto-resistive elements is also disclosed.
    Type: Application
    Filed: April 16, 2003
    Publication date: October 23, 2003
    Applicant: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Leo E. Kennedy, Oh-Hun Kwon, Matthew A. Simpson, Stanley C. Smith
  • Publication number: 20030134134
    Abstract: A method of depositing a coating is disclosed, which method calls for providing a substrate, and thermally spraying a ceramic powder thereon to form a coating. The ceramic powder has a garnet crystal structure phase, and the thermal spraying in turn forms a coating on the substrate that includes a garnet crystal structure phase.
    Type: Application
    Filed: January 11, 2002
    Publication date: July 17, 2003
    Applicant: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Matthew A. Simpson, Dominique Billieres, Gerard Main, Jean-Michel Drouin
  • Publication number: 20020177518
    Abstract: This invention relates to a dense ceramics having ESD dissipative characteristics, tunable volume and surface resistivities in semi-insulative range (103-1011 Ohm-cm), substantially pore free, high flexural strength, light colors, for desired ESD dissipation characteristics, structural reliability, high vision recognition, low wear and particulate contamination to be used as ESD dissipating tools, fixtures, load bearing elements, work surfaces, containers in manufacturing and assembling electrostatically sensitive microelectronic, electromagnetic, electro-optic components, devices and systems.
    Type: Application
    Filed: November 19, 2001
    Publication date: November 28, 2002
    Inventors: Oh-Hun Kwon, Matthew A. Simpson, Roger J. Lin
  • Patent number: 6316240
    Abstract: The present invention relates to a method for recovering a glycosidase or a peptidase from a culture solution from an unsolubilized state within said solution to a solubilized state within said solution.
    Type: Grant
    Filed: January 24, 2000
    Date of Patent: November 13, 2001
    Assignee: Novozymes A/S
    Inventors: Mads Aage Laustsen, Curran Matthew Simpson, Michael John O'Reilly
  • Patent number: 6099966
    Abstract: A deposition target medium is disclosed for use in CVD of a diamond film wherein a hydrocarbon gas and atomic hydrogen are utilized in depositing the diamond film on the deposition target medium, which comprises a substrate having a Young's modulus of less than 50 GPa; and a coating on said substrate, said coating comprising a binder and diamond grit, said binder comprising a glass-forming oxide.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: August 8, 2000
    Assignees: Celestech, Inc., Saint-Gobain/Norton Industrial Ceramics Corporation
    Inventors: Gregory Bak-Boychuk, Martin G. Bradley, Darryl K. Mack, Stephen M. Jaffe, Matthew Simpson
  • Patent number: 6099652
    Abstract: An apparatus for depositing synthetic diamond on a surface of a substrate includes a deposition chamber and a cooling block having a surface in the deposition chamber that is cooled by heat exchange. The substrate is supported from the cooling block so that the bottom surface of the substrate is spaced from the cooling block surface by a gap, and a gas is provided in the deposition chamber and in the gap, the gas comprising at least 30 percent hydrogen gas. A plasma deposition system forms in the chamber a plasma containing hydrogen gas and a hydrocarbon gas for depositing synthetic diamond on the top surface of the substrate.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: August 8, 2000
    Assignee: Saint-Gobain Industrial Ceramics, Inc.
    Inventors: Donald O. Patten, Jr., Matthew A. Simpson, Henry Windischmann, Michael S. Heuser, William A. Quirk, Stephen M. Jaffe
  • Patent number: 6082294
    Abstract: An apparatus for depositing diamond film is disclosed, which comprises: a chamber; a reaction zone in the chamber; means for feeding diamond forming gases and an electron source gas into the reaction zone; means for applying an electric field across the reaction zone to accelerate free electrons of the electron source gas and dissociate hydrogen in the diamond forming gases to produce atomic hydrogen; and a deposition surface adjacent the reaction zone, whereby diamond film is deposited on the deposition surface from the diamond forming gases, assisted by the atomic hydrogen.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: July 4, 2000
    Assignee: Saint-Gobain Industrial Ceramics, Inc.
    Inventor: Matthew Simpson
  • Patent number: 5976206
    Abstract: Diamond film with substantially no non-diamond carbon and a high thermal conductivity is deposited by means of a direct current arc jet apparatus with a substrate temperature below about 975 degrees Celsius, an arc power of between about 20 and 40 kw. A pressure of about 12 torr, and an enthalpy greater than 30 from a activated gas jet fed with hydrogen and methane, the methane being supplied at a concentration of less than 0.07%. The resulting material has a high transparency and thermal conductivity.Also disclosed is the use of the diamond material made by the present method for cutting tool applications, particularly milling.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: November 2, 1999
    Assignee: Saint-Gobain/Norton Industrial Ceramics Corporation
    Inventors: Louis K. Bigelow, Kevin J. Gray, Grant Lu, Matthew A. Simpson, Gordon L. Cann
  • Patent number: 5909879
    Abstract: At least one of the mating wear surfaces of a sliding mechanical seal is coated with diamond. The coating includes an underlayer of high resistance to wear and an overlayer with a reduced resistance to wear as compared to that of the underlayer. The reduced wear resistance of the overlayer prevents damage by the diamond to the opposing mating surface during the wear-in period of use.
    Type: Grant
    Filed: March 9, 1993
    Date of Patent: June 8, 1999
    Assignee: Norton Company
    Inventor: Matthew A. Simpson
  • Patent number: 5863605
    Abstract: A method for producing a diamond film is disclosed, which comprises the steps of providing a substrate having a Young's modulus of less than 50 GPa; applying a coating material comprising a glass-forming oxide binder and diamond grit to the substrate; and depositing said diamond film on said coating by CVD.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: January 26, 1999
    Assignees: Celestech, Inc., Saint-Gobain/Norton Industrial Ceramics Corp.
    Inventors: Gregory Bak-Boychuk, Martin G. Bradley, Darryl K. Mack, Stephen M. Jaffe, Matthew Simpson
  • Patent number: 5853268
    Abstract: A method of making a diamond-coated insert includes, obtaining a substrate of durable and diamond adherent material having a substantially smooth surface on which is coated a diamond layer using any known CVD technique, and partitioning the diamond covered substrate with a laser beam into multiple inserts with desired geometries. If desired, the insert edges and corners may be thereafter machined or ablated until the desired smoothness and finish are achieved, and a fastening throughbore may be preformed or drilled in the center of each insert. The diamond-coated inserts as formed have a top surface entirely coated by a surface layer of diamond of a first thickness, and at least one rake face which is not diamond-coated beyond the surface layer of diamond.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: December 29, 1998
    Assignee: Saint-Gobain/Norton Industrial Ceramics Corporation
    Inventor: Matthew A. Simpson