Patents by Inventor Sung S. Park
Sung S. Park 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).
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Publication number: 20240076788Abstract: Disclosed are an oxidizing electrode, a water electrolysis device including the same and a method for manufacturing the same. According to exemplary embodiments of the present disclosure, there is provided an oxidizing electrode with improved performance at low loadings of noble metals, especially, ruthenium (Ru) and iridium oxide, in which a ruthenium (Ru) layer and an iridium oxide layer formed on a substrate by electrodeposition in a sequential order are supported by electrochemical reaction rather than physical bonding.Type: ApplicationFiled: January 18, 2023Publication date: March 7, 2024Inventors: Hyun S. PARK, Jong Hyun JANG, Hee-Young PARK, Su Ji LEE, Sung Jong YOO, Jin Young KIM, Jimin KONG, Jin-ho OH, So Young LEE
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Patent number: 11565464Abstract: A system for fabricating a composite part using a 3D printing machine. The system includes means for forming the part by depositing consecutive part layers each including rows of filaments made of a part material from the machine, where depositing each part layer includes non-sequentially depositing one set of a plurality of filaments so that a gap is formed between the filaments and then depositing any number of additional sets of filaments so that each adjacent pair of filaments in each additional set of filaments are non-sequentially deposited.Type: GrantFiled: November 30, 2021Date of Patent: January 31, 2023Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATIONInventors: Eric G. Barnes, Pedro A. Gonzalez, Todd L. Szallay, Steven J. Floyd, Sung S. Park, Brett G. Morham, Cody J. Brown, Reese R. Allen, Ryan L. Bischoff
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Patent number: 11413806Abstract: A method for fabricating a composite part using a 3D printing machine. The method includes forming a support structure by depositing consecutive support structure layers including rows of filaments made of a support structure material from the machine on a build plate, smoothing out a top surface of the support structure after it is formed, and forming the part by depositing consecutive part layers including rows of filaments made of a part material from the machine on the support structure.Type: GrantFiled: April 10, 2019Date of Patent: August 16, 2022Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATIONInventors: Eric G. Barnes, Pedro A. Gonzalez, Todd L. Szallay, Steven J. Floyd, Sung S. Park, Brett G. Morham, Cody J. Brown, Reese R. Allen, Ryan L. Bischoff
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Publication number: 20220080651Abstract: A system for fabricating a composite part using a 3D printing machine. The system includes means for forming the part by depositing consecutive part layers each including rows of filaments made of a part material from the machine, where depositing each part layer includes non-sequentially depositing one set of a plurality of filaments so that a gap is formed between the filaments and then depositing any number of additional sets of filaments so that each adjacent pair of filaments in each additional set of filaments are non-sequentially deposited.Type: ApplicationFiled: November 30, 2021Publication date: March 17, 2022Inventors: Eric G. Barnes, Pedro A. Gonzalez, Todd L. Szallay, Steven J. Floyd, Sung S. Park, Brett G. Morham, Cody J. Brown, Reese R. Allen, Ryan L. Bischoff
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Patent number: 11220044Abstract: A method for fabricating a composite part using a 3D printing machine. The method includes forming the part by depositing consecutive part layers each including rows of filaments made of a part material from the machine, where depositing each part layer includes non-sequentially depositing one set of a plurality of filaments so that a gap is formed between the filaments and then depositing any number of additional sets of filaments so that each adjacent pair of filaments in each additional set of filaments are non-sequentially deposited.Type: GrantFiled: April 10, 2019Date of Patent: January 11, 2022Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATIONInventors: Eric G. Barnes, Pedro A. Gonzalez, Todd L. Szallay, Steven J. Floyd, Sung S. Park, Brett G. Morham, Cody J. Brown, Reese R. Allen, Ryan L. Bischoff
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Patent number: 11173654Abstract: A method for fabricating a composite part using a 3D printing machine. The method includes forming the part by depositing an alternating sequence of first part layers including rows of filaments made of a first part material and depositing second part layers including rows of filaments made of a second part material, where the second part material is different than the first part material and provides adhesion between the first part layers.Type: GrantFiled: April 10, 2019Date of Patent: November 16, 2021Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATIONInventors: Eric G. Barnes, Pedro A. Gonzalez, Todd L. Szallay, Steven J. Floyd, Sung S. Park, Brett G. Morham, Cody J. Brown, Reese R. Allen, Ryan L. Bischoff
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Patent number: 11167483Abstract: A 3D printing machine for fabricating high performance 3D integrated composite structures, where the machine includes a robot having a base portion, a robot arm and a rotatable connector secured to the arm opposite to the base portion, at least one source of an extrudable material, and an end-effector mounted to the rotatable connector and including at least one extruder module for extruding the extrudable material. The extruder module includes a nozzle assembly for extruding heated material out of the end-effector, and the end-effector is rotatable relative to the structure by the rotatable connector so that the nozzle assembly can be oriented normal to the part in different orientations without significantly changing a pose of the robot.Type: GrantFiled: April 10, 2019Date of Patent: November 9, 2021Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATIONInventors: Eric G. Barnes, Pedro A. Gonzalez, Todd L. Szallay, Steven J. Floyd, Sung S. Park, Brett G. Morham, Cody J. Brown, Reese R. Allen, Ryan L. Bischoff
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Patent number: 11167484Abstract: A printing machine for fabricating high performance 3D integrated composite structures. The machine includes a robot having a base portion, a robot arm and an end joint secured to the arm opposite to the base portion, at least one source of an extrudable material, and an end-effector mounted to the end joint. The end-effector includes at least one extruder module for extruding the extrudable material and a rotary assembly, where the extruder module includes a nozzle assembly for extruding heated material out of the end-effector. The extruder module is mounted to the rotary assembly and the rotary assembly is rotatable so as to rotate the nozzle assembly relative to the part without rotating the end-effector.Type: GrantFiled: April 10, 2019Date of Patent: November 9, 2021Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATIONInventors: Eric G. Barnes, Pedro A. Gonzalez, Todd L. Szallay, Steven J. Floyd, Sung S. Park, Brett G. Morham, Cody J. Brown, Reese R. Allen, Ryan L. Bischoff
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Patent number: 11117319Abstract: A printing machine for fabricating high performance 3D integrated composite structures, where the machine includes a robot having a base portion, a robot arm and an end joint secured to the arm opposite to the base portion, a plurality of sources of extrudable material, and an end-effector mounted to the end joint. The end-effector includes a multiple-extruder module having a first extruder and a second extruder each including a separate nozzle assembly, wherein the first extruder receives one extrudable material and the second extruder receives another extrudable material.Type: GrantFiled: April 10, 2019Date of Patent: September 14, 2021Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATIONInventors: Eric G. Barnes, Pedro A. Gonzalez, Todd L. Szallay, Steven J. Floyd, Sung S. Park, Brett G. Morham, Cody J. Brown, Reese R. Allen, Ryan L. Bischoff
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Publication number: 20200324458Abstract: A method for fabricating a composite part using a 3D printing machine. The method includes forming the part by depositing consecutive part layers each including rows of filaments made of a part material from the machine, where depositing each part layer includes non-sequentially depositing one set of a plurality of filaments so that a gap is formed between the filaments and then depositing any number of additional sets of filaments so that each adjacent pair of filaments in each additional set of filaments are non-sequentially deposited.Type: ApplicationFiled: April 10, 2019Publication date: October 15, 2020Inventors: Eric G. Barnes, Pedro A. Gonzalez, Todd L. Szallay, Steven J. Floyd, Sung S. Park, Brett G. Morham, Cody J. Brown, Reese R. Allen, Ryan L. Bischoff
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Publication number: 20200324459Abstract: A 3D printing machine for fabricating high performance 3D integrated composite structures, where the machine includes a robot having a base portion, a robot arm and a rotatable connector secured to the arm opposite to the base portion, at least one source of an extrudable material, and an end-effector mounted to the rotatable connector and including at least one extruder module for extruding the extrudable material. The extruder module includes a nozzle assembly for extruding heated material out of the end-effector, and the end-effector is rotatable relative to the structure by the rotatable connector so that the nozzle assembly can be oriented normal to the part in different orientations without significantly changing a pose of the robot.Type: ApplicationFiled: April 10, 2019Publication date: October 15, 2020Inventors: Eric G. Barnes, Pedro A. Gonzalez, Todd L. Szallay, Steven J. Floyd, Sung S. Park, Brett G. Morham, Cody J. Brown, Reese R. Allen, Ryan L. Bischoff
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Publication number: 20200324460Abstract: A method for fabricating a composite part using a 3D printing machine. The method includes forming the part by depositing an alternating sequence of first part layers including rows of filaments made of a first part material and depositing second part layers including rows of filaments made of a second part material, where the second part material is different than the first part material and provides adhesion between the first part layers.Type: ApplicationFiled: April 10, 2019Publication date: October 15, 2020Inventors: Eric G. Barnes, Pedro A. Gonzalez, Todd L. Szallay, Steven J. Floyd, Sung S. Park, Brett G. Morham, Cody J. Brown, Reese R. Allen, Ryan L. Bischoff
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Publication number: 20200324472Abstract: A printing machine for fabricating high performance 3D integrated composite structures. The machine includes a robot having a base portion, a robot arm and an end joint secured to the arm opposite to the base portion, at least one source of an extrudable material, and an end-effector mounted to the end joint. The end-effector includes at least one extruder module for extruding the extrudable material and a rotary assembly, where the extruder module includes a nozzle assembly for extruding heated material out of the end-effector. The extruder module is mounted to the rotary assembly and the rotary assembly is rotatable so as to rotate the nozzle assembly relative to the part without rotating the end-effector.Type: ApplicationFiled: April 10, 2019Publication date: October 15, 2020Inventors: Eric G. Barnes, Pedro A. Gonzalez, Todd L. Szallay, Steven J. Floyd, Sung S. Park, Brett G. MORHAM, Cody J. Brown, Reese R. Allen, Ryan L. Bischoff
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Publication number: 20200324474Abstract: A method for fabricating a composite part using a 3D printing machine. The method includes forming a support structure by depositing consecutive support structure layers including rows of filaments made of a support structure material from the machine on a build plate, smoothing out a top surface of the support structure after it is formed, and forming the part by depositing consecutive part layers including rows of filaments made of a part material from the machine on the support structure.Type: ApplicationFiled: April 10, 2019Publication date: October 15, 2020Inventors: Eric G. Barnes, Pedro A. Gonzalez, Todd L. Szallay, Steven J. Floyd, Sung S. Park, Brett G. Morham, Cody J. Brown, Reese R. Allen, Ryan L. Bischoff
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Publication number: 20200324473Abstract: A printing machine for fabricating high performance 3D integrated composite structures, where the machine includes a robot having a base portion, a robot arm and an end joint secured to the arm opposite to the base portion, a plurality of sources of extrudable material, and an end-effector mounted to the end joint. The end-effector includes a multiple-extruder module having a first extruder and a second extruder each including a separate nozzle assembly, wherein the first extruder receives one extrudable material and the second extruder receives another extrudable material.Type: ApplicationFiled: April 10, 2019Publication date: October 15, 2020Inventors: Eric G. Barnes, Pedro A. Gonzalez, Todd L. Szallay, Steven J. Floyd, Sung S. Park, Brett G. Morham, Cody J. Brown, Reese R. Allen, Ryan L. Bischoff
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Patent number: 9782928Abstract: A system is described for reinforcing a thermoplastic workpiece including a subject surface and an underlying workpiece body volume. At least one substantially linear Z-pin having proximal and distal pin ends longitudinally separated by a pin body is provided. The proximal pin end is in direct contact with the subject surface. An ultrasonic energy source applies ultrasonic energy to the Z-pin to ultrasonically heat the Z-pin and thus locally melt the workpiece material of the subject surface and/or the workpiece body to create a melted workpiece material. The proximal pin end and at least a portion of the pin body of the Z-pin are penetrated into the melted workpiece material to create an inserted Z-pin length. The inserted Z-pin length is maintained in the workpiece body volume by solidified melted workpiece material around the inserted Z-pin length to reinforce the workpiece. A method of reinforcing a workpiece is also provided.Type: GrantFiled: September 2, 2015Date of Patent: October 10, 2017Assignee: Northrop Grumman Systems CorporationInventors: Eric G. Barnes, Sung S. Park, Pedro A. Gonzalez, Anthony Tamayo, Todd Lewis Szallay