Patents by Inventor Choon Ryu

Choon Ryu 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: 20240375305
    Abstract: A shaving blade is proposed. The shaving blade includes a substrate having a cutting edge, a substrate tip, and a plurality of coating layers laminated on the substrate. A first thickness of the substrate is defined as a thickness measured at a first distance that is 8 micrometers from the substrate tip along a central axis. A second thickness of the substrate is defined as a thickness measured at a second distance that is 16 micrometers from the substrate tip along the central axis. A third thickness of the substrate is defined as a thickness measured at a third distance that is 32 micrometers from the substrate tip along the central axis. The plurality of coating layers include a first coating layer, a second coating layer, and a third coating layer, and contain one or more of chromium boride (CrB), chromium carbide (CrC), or Diamondlike carbon (DLC).
    Type: Application
    Filed: July 25, 2024
    Publication date: November 14, 2024
    Inventors: Hyun Ju LEE, Kwang Choon RYU, Min Joo PARK
  • Publication number: 20240316810
    Abstract: A razor blade is proposed. The razor blade may include a substrate having a cutting edge formed at a tip. A thickness T4 of the substrate measured at a distance of 4 ?m from the tip may be between 1.00 ?m and 1.70 ?m. A thickness T250 of the substrate measured at a distance of 250 ?m from the tip may be between 44 ?m and 60.56 ?m, for example between 47.5 ?m and 60.56 ?m. A ratio of the T4 to the T250 may be 0.032 or less. A rate of increase in thickness in a first section in a region distanced 40 ?m to 100 ?m from the tip may be less than a rate of increase in thickness in a second section in a region distanced 100 ?m or more from the tip.
    Type: Application
    Filed: June 4, 2024
    Publication date: September 26, 2024
    Inventors: Hyun Ju LEE, Hyun Kyu JUNG, Seung Ki LEE, Kwang Choon RYU, Min Joo PARK
  • Patent number: 12076874
    Abstract: A shaving blade is proposed. The shaving blade includes a substrate having a cutting edge, a substrate tip, and a plurality of coating layers laminated on the substrate. A first thickness of the substrate is defined as a thickness measured at a first distance that is 8 micrometers from the substrate tip along a central axis. A second thickness of the substrate is defined as a thickness measured at a second distance that is 16 micrometers from the substrate tip along the central axis. A third thickness of the substrate is defined as a thickness measured at a third distance that is 32 micrometers from the substrate tip along the central axis. The plurality of coating layers include a first coating layer, a second coating layer, and a third coating layer, and contain one or more of chromium boride (CrB), chromium carbide (CrC), or Diamondlike carbon (DLC).
    Type: Grant
    Filed: April 21, 2023
    Date of Patent: September 3, 2024
    Assignee: Dorco Co., Ltd.
    Inventors: Hyun Ju Lee, Kwang Choon Ryu, Min Joo Park
  • Publication number: 20240058978
    Abstract: A razor blade is proposed. The razor blade may include a substrate having a cutting edge formed at a tip. The substrate may include a plurality of first facets, and a plurality of second facets formed between the tip and the plurality of first facets. The substrate may also include a facet brake region having facet brake spots where the plurality of first facets and the plurality of second facets intersect. The substrate may further include a first facet region including the plurality of first facets but not including the plurality of second facets.
    Type: Application
    Filed: August 9, 2023
    Publication date: February 22, 2024
    Inventors: Hyun Ju LEE, Seung Ki LEE, Kwang Choon RYU, Min Joo PARK
  • Publication number: 20230311352
    Abstract: A shaving blade is disclosed herein. An embodiment of the present disclosure provides a shaving blade including: a substrate including a cutting edge at which a sharp substrate tip is formed, wherein the substrate has a thickness T10 measured at a distance D10 that is 10 micrometers away from the substrate tip, the thickness T10 having a value between 3.18 micrometers and 3.66 micrometers, and a thickness T100 measured at a distance D100 that is 100 micrometers away from the substrate tip, the thickness T100 having a value between 14.82 micrometers and 18.85 micrometers.
    Type: Application
    Filed: May 28, 2021
    Publication date: October 5, 2023
    Applicant: DORCO CO., LTD.
    Inventors: Hyun Ju LEE, Kwang Choon RYU, Myoung Jin KIM
  • Publication number: 20230249371
    Abstract: According to one embodiment, a shaving blade includes a substrate having a cutting edge provided with a sharp substrate tip, wherein a thickness T16 of the substrate measured at a distance D16, which is 16 micrometers from the substrate tip, is in a range from 2.41 micrometers to 3.76 micrometers.
    Type: Application
    Filed: April 21, 2023
    Publication date: August 10, 2023
    Applicant: DORCO CO., LTD.
    Inventors: Hyun Ju LEE, Kwang Choon RYU, Min Joo PARK
  • Patent number: 11660770
    Abstract: According to one embodiment, a shaving blade includes a substrate having a cutting edge provided with a sharp substrate tip, wherein a thickness T16 of the substrate measured at a distance D16, which is 16 micrometers from the substrate tip, is in a range from 2.41 micrometers to 3.76 micrometers.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: May 30, 2023
    Assignee: DORCO CO., LTD.
    Inventors: Hyun Ju Lee, Kwang Choon Ryu, Min Joo Park
  • Publication number: 20210094199
    Abstract: A shaving blade is disclosed. According to one embodiment of the present disclosure, the shaving blade includes a substrate having a cutting edge provided with a sharp substrate tip, wherein a thickness T16 of the substrate measured at a distance D16, which is 16 micrometers from the substrate tip, is in a range from 2.41 micrometers to 3.76 micrometers.
    Type: Application
    Filed: August 6, 2020
    Publication date: April 1, 2021
    Applicant: DORCO CO., LTD.
    Inventors: Hyun Ju LEE, Kwang Choon RYU, Min Joo PARK
  • Patent number: 8773327
    Abstract: A display apparatus and a control method thereof are provided. The display apparatus displays first image data, received from a computer through a first interface, and second image data, received from the computer through a second interface, together. Accordingly, a single monitor can display image data from two or more interfaces together when the monitor receives image data from a single computer through the two or more interfaces.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: July 8, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Kwang-choon Ryu
  • Patent number: 8330671
    Abstract: A display apparatus and a control method thereof are provided. The display apparatus displays first image data, received from a computer through a first interface, and second image data, received from the computer through a second interface, together. Accordingly, a single monitor can display image data from two or more interfaces together when the monitor receives image data from a single computer through the two or more interfaces.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: December 11, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Kwang-choon Ryu
  • Patent number: 8236107
    Abstract: A system that forms an alignment layer of a liquid crystal device has an applicator that applies an alignment layer of material on a substrate, a magnetic field generator that applies a magnetic field to directionally align the alignment layer material, and a firing device to fire the directionally aligned material.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: August 7, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Choon Ryu, Hao-Joon Son
  • Patent number: 7910174
    Abstract: An apparatus for fabricating a flat panel display device includes a substrate on which a picture display section is formed and a stage on which the substrate is loaded. A dispenser applies a sealant along an outer line of the picture display section in the substrate. A light detector emits light toward the sealant and detects the amount of reflected light in real-time. A controller detects broken lines in the sealant in accordance with a signal supplied from the light detector and controls the dispenser so as to re-apply the sealant to spaces in the broken line in which the sealant is not present.
    Type: Grant
    Filed: January 6, 2009
    Date of Patent: March 22, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Choon Ryu, Hae Joon Son
  • Patent number: 7719620
    Abstract: A heat curing device includes supports positioned in a chamber to support a substrate, the supports having sections, and protrusion structures formed on the sections of the supports to contact a dummy area of the substrate, wherein the supports may be rotated with respect to a horizontal axis. The sections of the supports may have a polygonal structure with the protrusion structures are formed on the polygonal sections of the supports, so that a plurality of protrusion structure patterns can be formed on one support. Since the supports are rotatable, the protrusion structure patterns supporting a substrate may be readily changed.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: May 18, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Choon Ryu, Chun Ok Park, Jae Ho Shin
  • Patent number: 7701548
    Abstract: An LCD device and a method for manufacturing the same is disclosed, to prevent a sealant from being coagulated or disconnected at a predetermined portion, the method comprising preparing lower and upper substrates; dispensing a sealant on any one of the lower and upper substrates by a dispenser; dispensing liquid crystal on any one of the lower and upper substrates; and bonding the lower and upper substrates to each other, wherein the process of dispensing the sealant includes sequential steps of dispensing a first dummy sealant in the periphery of a main sealant pattern, dispensing the main sealant pattern after forming the first dummy sealant, and dispensing a second dummy sealant pattern in the periphery of the main sealant pattern after forming the main sealant pattern.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: April 20, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Choon Ryu, Se Joon Baek
  • Patent number: 7538496
    Abstract: A display apparatus including a display panel to display an image and a back light illuminating the display panel, including an inverter to supply a driving power to the back light, a power supply to supply power to the inverter, a microcomputer to output a back light control signal to control an illuminating function of the back light, a controller to output an inverter control signal to the inverter according to a comparative result comparing an inverter power voltage supplied to the inverter with a predetermined reference voltage when the illuminating function of the back light is in a turned-on state based on the back light control signal.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: May 26, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Kwang-choon Ryu
  • Publication number: 20090117810
    Abstract: An apparatus for fabricating a flat panel display device includes a substrate on which a picture display section is formed and a stage on which the substrate is loaded. A dispenser applies a sealant along an outer line of the picture display section in the substrate. A light detector emits light toward the sealant and detects the amount of reflected light in real-time. A controller detects broken lines in the sealant in accordance with a signal supplied from the light detector and controls the dispenser so as to re-apply the sealant to spaces in the broken line in which the sealant is not present.
    Type: Application
    Filed: January 6, 2009
    Publication date: May 7, 2009
    Inventors: Jae Choon Ryu, Hae Joon Son
  • Publication number: 20090096712
    Abstract: A display apparatus and a control method thereof are provided. The display apparatus displays first image data, received from a computer through a first interface, and second image data, received from the computer through a second interface, together. Accordingly, a single monitor can display image data from two or more interfaces together when the monitor receives image data from a single computer through the two or more interfaces.
    Type: Application
    Filed: September 2, 2008
    Publication date: April 16, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Kwang-Choon Ryu
  • Patent number: 7488388
    Abstract: An apparatus for fabricating a flat panel display device includes a substrate on which a picture display section is formed and a stage on which the substrate is loaded. A dispenser applies a sealant along an outer line of the picture display section in the substrate. A light detector emits light toward the sealant and detects the amount of reflected light in real-time. A controller detects broken lines in the sealant in accordance with a signal supplied from the light detector and controls the dispenser so as to re-apply the sealant to spaces in the broken line in which the sealant is not present.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: February 10, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Choon Ryu, Hae Joon Son
  • Patent number: 7450213
    Abstract: An LCD device and a method for manufacturing the same is disclosed, in which it is possible to correct a problem of insufficient or excessive supply of liquid crystal in an LCD device by controlling an amount of liquid crystal. The method includes preparing a liquid crystal cell comprised of a first substrate, a second substrate, a liquid crystal layer between the first and second substrates, and a first sealant formed in the periphery of the liquid crystal layer between the first and second substrates; measuring an amount of liquid crystal provided to the inside of liquid crystal cell; forming an inlet for liquid crystal in the first sealant; and regulating the amount of liquid crystal by supplying or discharging the liquid crystal through the inlet; and sealing the inlet.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: November 11, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Bum Soo Kim, Byoung Chul Choi, Byoung-Mok Ha, Chang Bo Shim, Chang-Soo Na, Cheol Joo Moon, Chong Chan Eun, Gu-Yun Bok, Hae Joon Son, Heung-Sun Kim, Hong Seok Lee, Hyung Jin Park, Hyun-Ho Song, In Kyu Lee, Jae Choon Ryu, Jae Ho Shin, Jae Min Jong, Je Hyun Kim, Jeong-Ho Lee, Jeong-Joon Lee, Jong Won Kim, Jun Beom Cho, Jun Young Yu, Jung Seung Kim, Jung-Deog Yoo, Jung-Sik Kim, Se Joon Baek, Seung-Bum Lee, Seung-Won Moon, Sung-Mo Koo, Tae Man Kim, Young Phil Bang, Myoung Su Yang, Jae Kyun Lee, Ilyun-Seok Jang, Jung Il Lee
  • Publication number: 20080002137
    Abstract: An LCD device and a method for manufacturing the same is disclosed, in which it is possible to correct a problem of insufficient or excessive supply of liquid crystal in an LCD device by controlling an amount of liquid crystal. The method includes preparing a liquid crystal cell comprised of a first substrate, a second substrate, a liquid crystal layer between the first and second substrates, and a first sealant formed in the periphery of the liquid crystal layer between the first and second substrates; measuring an amount of liquid crystal provided to the inside of liquid crystal cell; forming an inlet for liquid crystal in the first sealant; and regulating the amount of liquid crystal by supplying or discharging the liquid crystal through the inlet; and sealing the inlet.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 3, 2008
    Inventors: Bum Soo Kim, Byoung Chul Choi, Byoung-Mok Ha, Chang Bo Shim, Chang-Soo Na, Cheol Joo Moon, Chong Chan Eun, Gu-Yun Bok, Hae Joon Son, Heung-Sun Kim, Hong Seok Lee, Hyung Jin Park, Hyun-Ho Song, In Kye Lee, Jae Choon Ryu, Jae Ho Shin, Jae Min Jong, Je Hyun Kim, Jeong-Ho Lee, Jeong-Joon Lee, Jong Won Kim, Jun Beom Cho, Jun Young Yu, Jung Seung Kim, Jung-Deog Yoo, Jung-Sik Kim, Se Joon Baek, Seung-Bum Lee, Seung-Won Moon, Sung-Mo Koo, Tae Man Kim, Young Phil Bang, Myoung Su Yang, Jae Kyun Lee, Ilyun-Seok Jang, Jung Il Lee