Patents by Inventor Kyoung-Rae Cho

Kyoung-Rae Cho 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: 20240026485
    Abstract: Provided are a high-strength steel sheet having excellent bendability and formability, and a method for manufacturing same. The steel sheet includes: 0.05 to 0.12% of carbon (C), 2.0 to 3.0% of manganese (Mn), 0.5% or less (excluding 0%) of silicon (Si), 1.0% or less (excluding 0%) of chromium (Cr), 0.1% or less (excluding 0%) of niobium (Nb), 0.1% or less (excluding 0%) of titanium (Ti), 0.0025% or less (excluding 0%) of boron (B), 0.02 to 0.05% of aluminum (sol.Al), 0.05% or less (excluding 0%) of phosphorus (P), 0.01% or less (excluding 0%) of sulfur (S), 0.01% or less (excluding 0%) of nitrogen (N), with a balance of Fe and inevitable impurities, and 35 to 50% of ferrite and 35 to 45% of bainite, and a balance of martensite, the ferrite comprising, by area fraction: 8 to 15% of non-recrystallized ferrite and 27 to 35% of recrystallized ferrite, as a microstructure.
    Type: Application
    Filed: November 22, 2021
    Publication date: January 25, 2024
    Inventors: Kyoung-Rae CHO, Hee-Su PARK, Hyun-Gyu HWANG, Sung-Kyu KIM, Chang-Hyo SEO
  • Publication number: 20230295763
    Abstract: Provided is a high-strength steel sheet and a method for manufacturing same, wherein the high-strength steel sheet is a material suitable for automobile structural members and has excellent moldability, such as hole expandability, through the improvement of ductility, while having a low yield ratio and high strength.
    Type: Application
    Filed: September 7, 2021
    Publication date: September 21, 2023
    Inventors: Sung-Kyu KIM, Kyoung-Rae CHO, Chang-Hyo SEO, Ki-Hyun PARK, Sang-Ho HAN
  • Patent number: 6782677
    Abstract: A tablet detecting system ascertains whether a tablet exists in a receiving hole of a loader unit used for a molding tablet supplying apparatus or, if exists, whether the tablet has a standard size, by using a mechanical contact manner. The tablet detecting system has a push rod, a contact head, an insulation plate, a conductive assembly and a control unit. The push rod is inserted into the receiving hole and moves upward just as high as the tablet. The contact head is formed on a top of the push rod and the insulation plate is located over the contact head. The conductive assembly is formed in the insulation plate and the control unit is electrically connected to the conductive assembly. When the tablet in the receiving hole has a standard size, the contact head mechanically touches the conductive assembly and gives electrical connection to the conductive assembly, and the control unit senses the electrical connection.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: August 31, 2004
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyoung-Rae Cho, Kyung-Soo Park, Ju-Hwan Choi
  • Publication number: 20030213215
    Abstract: A tablet detecting system ascertains whether a tablet exists in a receiving hole of a loader unit used for a molding tablet supplying apparatus or, if exists, whether the tablet has a standard size, by using a mechanical contact manner. The tablet detecting system has a push rod, a contact head, an insulation plate, a conductive assembly and a control unit. The push rod is inserted into the receiving hole and moves upward just as high as the tablet. The contact head is formed on a top of the push rod and the insulation plate is located over the contact head. The conductive assembly is formed in the insulation plate and the control unit is electrically connected to the conductive assembly. When the tablet in the receiving hole has a standard size, the contact head mechanically touches the conductive assembly and gives electrical connection to the conductive assembly, and the control unit senses the electrical connection.
    Type: Application
    Filed: April 4, 2003
    Publication date: November 20, 2003
    Applicant: Samsung Electronics Co.
    Inventors: Kyoung-Rae Cho, Kyung-Soo Park, Ju-Hwan Choi