Patents by Inventor Chang Ryul Lee

Chang Ryul 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).

  • Patent number: 11958131
    Abstract: Disclosed are an aluminum-coated blank, a manufacturing method thereof, and an apparatus for manufacturing the same. The blank includes two or more aluminum-coated steel sheets connected together by a joint, each of the steel sheets including: a base steel sheet including 0.01-0.5 wt % of carbon, 0.01-1.0 wt % of silicon, 0.5-3.0 wt % of manganese, greater than 0 but not greater than 0.05 wt % of phosphorus, greater than 0 but not greater than 0.01 wt % of sulfur, greater than 0 but not greater than 0.1 wt % of aluminum, greater than 0 but not greater than 0.001 wt % of nitrogen, and the balance of iron and other inevitable impurities; and a coating layer including aluminum and formed on at least one surface of the base steel sheet.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: April 16, 2024
    Assignee: Hyundai Steel Company
    Inventors: Chang Yong Lee, Jeong Seok Kim, Sung Ryul Kim, Tae Woo Kwon
  • Patent number: 10007028
    Abstract: A photosensitive resin composition includes (A) a binder resin including an epoxy resin; (B) a photopolymerizable monomer; (C) a photopolymerization initiator; (D) a colorant including a dye represented by the following Chemical Formula 1, wherein in the above Chemical Formula 1, each substituent is the same as defined in the detailed description; and (E) a solvent.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: June 26, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Se-Young Choi, Jae-Young Kwon, Eun-Bi Park, Jung-Sun Lee, Chang-Ryul Lee, Ju-Ho Jung, Mi-Jin Choi, Seung-Jib Choi, Kyung-Hee Hyung
  • Patent number: 9291743
    Abstract: Disclosed are a photosensitive resin composition including (A) a colorant including a compound represented by the following Chemical Formula 1 and Chemical Formula 2, wherein in Formulae 1 and 2, each substituent is the same as defined in the detailed description; (B) an acrylic-based binder resin; (C) a photopolymerizable monomer; (D) a photopolymerization initiator; and (E) a solvent, and a color filter using the same.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: March 22, 2016
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Kyung-Hee Hyung, Nam-Gwang Kim, Yeon-Soo Lee, Yu-Jin Lee, In-Jae Lee, Chang-Ryul Lee, Ji-Young Jeong, Se-Young Choi, Seung-Jib Choi, Ji-Hyun Hwang
  • Publication number: 20150331316
    Abstract: A photosensitive resin composition includes (A) a binder resin including an epoxy resin; (B) a photopolymerizable monomer; (C) a photopolymerization initiator; (D) a colorant including a dye represented by the following Chemical Formula 1, wherein in the above Chemical Formula 1, each substituent is the same as defined in the detailed description; and (E) a solvent.
    Type: Application
    Filed: January 9, 2015
    Publication date: November 19, 2015
    Inventors: Se-Young CHOI, Jae-Young KWON, Eun-Bi PARK, Jung-Sun LEE, Chang-Ryul LEE, Ju-Ho JUNG, Mi-Jin CHOI, Seung-Jib CHOI, Kyung-Hee HYUNG
  • Publication number: 20150198741
    Abstract: Disclosed are a photosensitive resin composition including (A) a colorant including a compound represented by the following Chemical Formula 1 and Chemical Formula 2, wherein in Formulae 1 and 2, each substituent is the same as defined in the detailed description; (B) an acrylic-based binder resin; (C) a photopolymerizable monomer; (D) a photopolymerization initiator; and (E) a solvent, and a color filter using the same.
    Type: Application
    Filed: September 8, 2014
    Publication date: July 16, 2015
    Inventors: Kyung-Hee HYUNG, Nam-Gwang KIM, Yeon-Soo LEE, Yu-Jin LEE, In-Jae LEE, Chang-Ryul LEE, Ji-Young JEONG, Se-Young CHOI, Seung-Jib CHOI, Ji-Hyun HWANG
  • Publication number: 20080187162
    Abstract: A headset communicable with a portable terminal is provided, which includes a main body having a plurality of key buttons provided on an outside thereof and a recess formed on one side thereof, a main earpiece fixedly installed on one side of the main body, and a sub-earpiece detachably installed in the recess and connected to the main body wirelessly or through a wired cable. According to the headset, a user can usually receive a voice signal using one earpiece as he/she conveniently carries the headset, and in case of need, the user can listen to a sound signal such as a music signal on stereo to suit the user's taste by using an additionally provided earpiece.
    Type: Application
    Filed: January 30, 2008
    Publication date: August 7, 2008
    Inventor: Chang Ryul Lee
  • Publication number: 20080046352
    Abstract: A system for charging a copyright royalty in a digital multimedia broadcasting, and a method for the same are disclosed, which are designed to store the contents of the current broadcasting as a user performs a key operation or reservation for storing the contents at a receiving terminal. A charge data is generated for charging a copyright royalty of the contents stored by the user and is transmitted to a charge process service provider computer. The charge process service provider computer calculates a copyright royalty based on the received charge data. The copyright royalty calculation information is transmitted to the DMB service provider computer. The DMB service provider computer charges a copyright royalty based on the received copyright royalty calculation information.
    Type: Application
    Filed: June 7, 2005
    Publication date: February 21, 2008
    Applicant: Mobilians Co., Ltd.
    Inventors: Chang-Hyun Jung, Chang-Ryul Lee
  • Patent number: 6847357
    Abstract: A remote control device includes a case; a display section situated at an upper section of the front face of the case; a machine section wheel switch section situated at inside of the case, some part of the section being exposed through the front face and containing a first wheel operation section, a first click encoder and a first push sensor; a menu function selection ball switch section which contains a second wheel operation section, a second click encoder and a second push sensor; a function selection ball switch section situated at inside of the case, some parts of the function selection ball switch section being exposed through the front face; a CPU which inputs, outputs and controls and electrical signals generated by rotation of said machine selection wheel switch section, menu selection wheel switch section and function selection ball switch section; a signal transmitting section being connected to an output of the CPU, and a memory having built-in machine, menu and function selection programs; and
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: January 25, 2005
    Assignee: Hinics Co., Ltd.
    Inventor: Chang Ryul Lee
  • Publication number: 20020093490
    Abstract: The invention relates to a remote control device with a plurality of functional switches which is capable of readily controlling all functions of an electronic machine using a wheel and ball switch from a remote location.
    Type: Application
    Filed: August 17, 2001
    Publication date: July 18, 2002
    Inventor: Chang Ryul Lee
  • Publication number: 20020066652
    Abstract: The present invention relates to a multi-directional ball switch, which simplifies a complicated switching system equipped in an electronic instrument to be quickly operated by constructing a ball switch of which the rotational direction of the ball is specifically controlled by using numbers of wheels and frictional force of click encoders, and operation method thereof.
    Type: Application
    Filed: August 17, 2001
    Publication date: June 6, 2002
    Inventor: Chang Ryul Lee
  • Patent number: D549684
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: August 28, 2007
    Assignee: Digiana Co., Ltd.
    Inventor: Chang Ryul Lee