Patents by Inventor Nam-Seon Lee

Nam-Seon Lee 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: 20200070300
    Abstract: A chemical mechanical polishing apparatus includes a polishing head, including a polishing head body, a membrane attached to a lower portion of the polishing head body, and a reflector disposed between the polishing head body and the membrane, a platen including an opening, an emitter disposed below the opening of the platen, the emitter configured to emit terahertz waves, a detector disposed below the opening of the platen, the detector configured to receive the terahertz waves emitted by the emitter and reflected by the reflector, and an analyzer configured to analyze an electrical signal generated by converting the terahertz waves received by the detector, the analyzer configured to determine a polishing end point.
    Type: Application
    Filed: February 6, 2019
    Publication date: March 5, 2020
    Inventors: Eun Kyung HONG, Nam Il KOO, Ji Min LEE, Sung Hyup KIM, Sang Yeon OH, Ik Seon JEON, Ji Min CHOI
  • Patent number: 10464145
    Abstract: The technical objective of the present invention is to provide a cutting insert that has an improved fastening property with a cutting tool, thereby preventing reduction of the service life. To this end, the cutting insert according to the present invention has three corners along the circumference thereof; an upper main cutting edge, which is formed on the edge between the upper surface and the first side surface, and an upper sub cutting edge, which is formed on the edge between the upper surface and the second side surface, are continuously disposed between respective corners; the lower surface has the same shape as that of the upper surface; and the angle defined between the upper main cutting edge and the upper sub cutting edge, which are placed on both sides with reference to each corner, is larger than or equal to 85° and is smaller than 90°.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: November 5, 2019
    Assignee: KORLOY INC.
    Inventors: Nam-seon Lee, Ki-chan Nam, Kane-hee Lee, Hyo-san Kim, Young-heum Kim
  • Publication number: 20190186070
    Abstract: Provided herein is a heating apparatus for developing a latent impact mark. The heating apparatus includes: a sample treated with an amino acid reagent containing amino acids capable of reacting with a latent impact mark; a first heating plate having a plate shape, having a first steam hole in a lower surface thereof, the first steam hole allowing steam to be discharged therethrough, and capable of being heated to a predetermined temperature; a second heating plate having a plate shape, having a second steam hole in an upper surface thereof, the second steam hole allowing steam to be discharged therethrough, and capable of being heated to a predetermined temperature; and a connecting portion configured to connect the first heating plate to the second heating plate such that the first heating plate is rotatable with respect to the second heating plate.
    Type: Application
    Filed: October 10, 2018
    Publication date: June 20, 2019
    Inventors: Dong A Lim, Kyeong Mi Kim, Hyo Seon Han, Young ll Seo, Sang Yoon Lee, Eun Ah Joo, Jin Pyo Kim, Jae Mo Goh, Nam Kyu Park
  • Publication number: 20190030628
    Abstract: The technical objective of the present invention is to provide a cutting insert that can minimize a phenomenon in which the cutting insert is lifted up from a seat surface of a cutting tool while a cutting process is being performed, and can increase an area by which the cutting insert is fastened to the cutting tool.
    Type: Application
    Filed: November 29, 2016
    Publication date: January 31, 2019
    Applicant: KORLOY INC.
    Inventors: Min Seok OH, Ki Chan NAM, Tae Kyun KIM, Nam Seon LEE, Hyo San KIM, Young Heum KIM
  • Publication number: 20180200808
    Abstract: The technical objective of the present invention is to provide a cutting insert that has an improved fastening property with a cutting tool, thereby preventing reduction of the service life. To this end, the cutting insert according to the present invention has three corners along the circumference thereof; an upper main cutting edge, which is formed on the edge between the upper surface and the first side surface, and an upper sub cutting edge, which is formed on the edge between the upper surface and the second side surface, are continuously disposed between respective corners; the lower surface has the same shape as that of the upper surface; and the angle defined between the upper main cutting edge and the upper sub cutting edge, which are placed on both sides with reference to each corner, is larger than or equal to 85° and is smaller than 90°.
    Type: Application
    Filed: May 27, 2016
    Publication date: July 19, 2018
    Applicant: KORLOY INC.
    Inventors: Nam-seon LEE, Ki-chan NAM, Kane-hee LEE, Hyo-san KIM, Young-heum KIM
  • Patent number: 5984632
    Abstract: A motor fan for a cleaning apparatus that creates the suction caused by a rotor in a suction device mounted in the cleaning apparatus such that foreign materials are drawn therein has a fan member coupled to the rotor and is provided with a plurality of curved fins thereon and which fins cause the air in a collection compartment to pass through a suction inlet by the suction when the rotor is rotated, and to discharge the sucked air outside a body through outlets and an exhaust outlet. A reinforcing member is provided and is closely engaged with a rear surface of the fan member, and which reinforcing member insertedly receives a shaft of the suction device and firmly is tightened by a nut.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: November 16, 1999
    Assignee: Kwangju Electronics Co., Ltd.
    Inventors: Nam-Seon Lee, Jong-Soo Choi, Kie-Yong Lee
  • Patent number: 5874683
    Abstract: This invention provides a system for measuring and comparing various characteristics of a motor fan rotated by a power generating unit, the system including the power generating unit for rotating the fan, a housing containing the power generating unit therein and being formed with a suction inlet for drawing air during rotation of the fan and a discharge outlet for discharging the air absorbed through the suction inlet, a supporting unit installed into the housing for supporting the power generating unit, a protection unit having in a front surface thereof a suction hole for drawing the air, for protecting breakage of the fan, a vacuum measuring unit installed to measure a vacuum in the housing, a wind amount regulating unit for controlling a draining port of the housing so as to maintain optimal vacuum in the housing, a revolution measurement unit for measuring revolution of the rotating unit installed to the power generating unit, and a torque table for measuring torque.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: February 23, 1999
    Assignee: Kwangju Electronics Co., Ltd.
    Inventors: Nam-Seon Lee, Jong-Soo Choi, Kie-Yong Lee
  • Patent number: D804552
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: December 5, 2017
    Inventors: Nam Seon Lee, Ki Chan Nam, Kwan Hee Lee, Hyo San Kim, Young Heum Kim
  • Patent number: D805564
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: December 19, 2017
    Inventors: Nam Seon Lee, Ki Chan Nam, Kwan Hee Lee, Hyo San Kim, Young Heum Kim
  • Patent number: D805566
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: December 19, 2017
    Inventors: Min Seok Oh, Ki Chan Nam, Tae Kyun Kim, Nam Seon Lee, Hyo San Kim, Young Heum Kim
  • Patent number: D816744
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: May 1, 2018
    Inventors: Nam Seon Lee, Ki Chan Nam, Young Heum Kim, Hyo San Kim, Min Seok Oh, Hyoung Ju Jung
  • Patent number: D822079
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: July 3, 2018
    Inventors: Nam Seon Lee, Hyo San Kim, Ki Chan Nam, Young Heum Kim