Patents by Inventor Changmin Son

Changmin Son 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: 10066923
    Abstract: An ice thickness measurement sensor 100 is provided to measure the thickness of ice extending from a circuit. The ice thickness measurement sensor comprises at least one capacitive sensor 150. The capacitance of the sensor 150 depends on the thickness of ice covering the sensor, because the presence of the ice changes the permittivity. The ice thickness measurement sensor may be used in a fluid pipe, for example to measure the thickness of ice extending from the inner surface of the pipe.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: September 4, 2018
    Assignee: ROLLS-ROYCE plc
    Inventors: Jeung Sang Go, Man Yeong Ha, Changmin Son, June Kee Min
  • Publication number: 20150260501
    Abstract: An ice thickness measurement sensor 100 is provided to measure the thickness of ice extending from a circuit. The ice thickness measurement sensor comprises at least one capacitive sensor 150. The capacitance of the sensor 150 depends on the thickness of ice covering the sensor, because the presence of the ice changes the permittivity. The ice thickness measurement sensor may be used in a fluid pipe, for example to measure the thickness of ice extending from the inner surface of the pipe.
    Type: Application
    Filed: February 19, 2015
    Publication date: September 17, 2015
    Inventors: Jeung Sang GO, Man Yeong HA, Changmin SON, June Kee MIN
  • Patent number: 7817337
    Abstract: The present invention generally relates to a laminated image panel and a fabrication method thereof for projecting images projected from an image optical engine, on a screen by reflecting and/or transmitting the images. The laminated image panel in accordance with the present invention comprises front elements, rear elements disposed in opposition to the front elements, sealants for forming a predetermined cell by mutually bonding opposed rim parts of the front elements and the rear elements and for sealing the front and rear elements by separating the front elements from the rear elements at certain intervals, and a diffusing medium injected into the cell and uniformly diffusing the projection images in transparent and/or semitransparent state.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: October 19, 2010
    Inventor: Changmin Son
  • Patent number: 7717668
    Abstract: A gas turbine engine simulator comprising a simulator rotor disc which has substantially the same maximum external dimensions as a rotor disc and is manufactured from a material which has a density of less than 220 kg/m3. The simulator rotor disc is manufactured from a foamed plastic material with a closed cell structure. The simulator rotor disc is provided with a cavity in flow communication with a source of simulator coolant fluid, at least one flow outlet, at least one heater unit and at least one thermocouple mounted within said cavity for the measurement of simulator coolant fluid temperature within said cavity.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: May 18, 2010
    Assignee: Rolls-Royce plc
    Inventors: Changmin Son, Peter Ireland, Steven Thorpe, Terence Jones
  • Publication number: 20080123187
    Abstract: The present invention generally relates to a laminated image panel and a fabrication method thereof for projecting images projected from an image optical engine, on a screen by reflecting and/or transmitting the images. The laminated image panel in accordance with the present invention comprises front elements, rear elements disposed in opposition to the front elements, sealants for forming a predetermined cell by mutually bonding opposed rim parts of the front elements and the rear elements and for sealing the front and rear elements by separating the front elements from the rear elements at certain intervals, and a diffusing medium injected into the cell and uniformly diffusing the projection images in transparent and/or semitransparent state.
    Type: Application
    Filed: January 6, 2006
    Publication date: May 29, 2008
    Applicant: NURIVISION CO., LTD.
    Inventor: Changmin Son
  • Publication number: 20070207039
    Abstract: A gas turbine engine simulator comprising a simulator rotor disc which has substantially the same maximum external dimensions as a rotor disc and is manufactured from a material which has a density of less than 220 kg/m3. The simulator rotor disc is manufactured from a foamed plastic material with a closed cell structure. The simulator rotor disc is provided with a cavity in flow communication with a source of simulator coolant fluid, at least one flow outlet, at least one heater unit and at least one thermocouple mounted within said cavity for the measurement of simulator coolant fluid temperature within said cavity.
    Type: Application
    Filed: October 19, 2006
    Publication date: September 6, 2007
    Applicant: ROLLS-ROYCE PLC
    Inventors: Changmin Son, Peter Ireland, Steven Thorpe, Terence Jones
  • Patent number: 7207776
    Abstract: A cooling arrangement comprises a support (20) for a plurality of blades (22). The support (20) comprises a plurality of blade mounting members (28) provided between adjacent blades (22). The blades (22) are mounted upon the blade mounting members (28). The cooling arrangement defines a pathway (36) for a cooling fluid. The cooling arrangement further includes a fluid directing formation (40, 44, 44A) to direct the cooling fluid across the blade mounting member (28).
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: April 24, 2007
    Assignee: Rolls-Royce plc
    Inventors: Roderick M Townes, Changmin Son, Colin Young
  • Publication number: 20050232751
    Abstract: A cooling arrangement comprises a support (20) for a plurality of blades (22). The support (20) comprises a plurality of blade mounting members (28) provided between adjacent blades (22). The blades (22) are mounted upon the blade mounting members (28). The cooling arrangement defines a pathway (36) for a cooling fluid. The cooling arrangement further includes a fluid directing formation (40, 44, 44A) to direct the cooling fluid across the blade mounting member (28).
    Type: Application
    Filed: December 21, 2004
    Publication date: October 20, 2005
    Inventors: Roderick Townes, Changmin Son, Colin Young
  • Patent number: 6688110
    Abstract: Where gas turbine engine structure eg combustion equipment, is to be air impingement cooled, the surface which receives the air jets is so shaped as to produce boundary layer separation zones 34, 38 and 44 in the cooling air, as it spreads across the surface. Mixing of the boundary layer with the remainder of the air flow results, followed by the re-establishment of the boundary layer. The new boundary layer is cooler than the original layer and so provides more effective cooling.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: February 10, 2004
    Assignee: Rolls-Royce plc
    Inventors: Geoffrey M. Dailey, Changmin Son
  • Publication number: 20030140632
    Abstract: Where gas turbine engine structure eg combustion equipment, is to be air impingement cooled, the surface which receives the air jets is so shaped as to produce boundary layer separation zones 34, 38 and 44 in the cooling air, as it spreads across the surface. Mixing of the boundary layer with the remainder of the air flow results, followed by the re-establishment of the boundary layer. The new boundary layer is cooler than the original layer and so provides more effective cooling.
    Type: Application
    Filed: November 22, 2002
    Publication date: July 31, 2003
    Applicant: ROLLS-ROYCE PLC
    Inventors: Geoffrey M. Dailey, Changmin Son
  • Publication number: 20010008070
    Abstract: Where gas turbine engine structure eg combustion equipment, is to be air impingement cooled, the surface which receives the air jets is so shaped as to produce boundary layer separation zones 34, 38 and 44 in the cooling air, as it spreads across the surface. Mixing of the boundary layer with the remainder of the air flow results, followed by the reestablishment of the boundary layer. The new boundary layer is cooler than the original layer and so provides more effective cooling.
    Type: Application
    Filed: December 28, 2000
    Publication date: July 19, 2001
    Inventors: Geoffrey M. Dailey, Changmin Son
  • Patent number: 5169565
    Abstract: There is disclosed an anti-dazzling and electrostatic charge-preventive transparent coating material comprised of at least two kinds of conductive metallic compounds dissolved in an organic solvent and concentrated, the concentrate being added with water and catalyst to form a transparent solution containing fine particulates, ethyl silicate dissolved in another organic solvent, said transparent solution and the ethyl silicate solution being mixed together to cause hydration and polycondensation, thereby leading to the growth of particulate solid ingredient.
    Type: Grant
    Filed: June 12, 1990
    Date of Patent: December 8, 1992
    Assignee: Samsung Electronics
    Inventors: Changmin Son, Soomin Jeong, Hunsoo Kim