Patents by Inventor Dong-kil Kang

Dong-kil Kang 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).

  • Thermoplastic polycarbonate resin composition and molded article produced therefrom
    Patent number: 11987697
    Abstract: A thermoplastic resin composition includes: about 100 parts by weight of a polycarbonate resin; about 0.1 parts by weight to about 1.5 parts by weight of a first rubber-modified vinyl graft copolymer including a diene rubber polymer having an average particle diameter of about 50 nm to about 200 nm; about 0.1 parts by weight to about 1.5 parts by weight of a second rubber-modified vinyl graft copolymer including a diene rubber polymer having an average particle diameter of about 250 nm to about 400 nm; about 0.1 parts by weight to about 1.5 parts by weight of a silicone rubber-modified vinyl graft copolymer; about 3 parts by weight to about 15 parts by weight of a phosphazene compound; and about 0.05 parts by weight to about 0.3 parts by weight of an alkali (earth) metal salt of perfluoroalkylsulfonic acid.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: May 21, 2024
    Assignee: Lotte Chemical Corporation
    Inventors: Dong Kil Choi, Tae Gon Kang, Young Mi Kim, Eun Taek Woo
  • SYSTEM AND METHOD TO SUPPLY CHEMICAL DURING SEMICONDUCTOR DEVICE FABRICATION
    Publication number: 20080202587
    Abstract: Disclosed are a system and method for supplying chemical during a semiconductor device fabrication process. The system includes a tank to store the chemical, a dispensing unit to hold the chemical, a refill line connected between the tank and the dispensing unit to supply the chemical from the tank to the chemical liquid dispensing unit, and a dispensing line connected between the chemical dispensing unit and a semiconductor substrate to supply the chemical from the chemical dispensing unit to the semiconductor substrate.
    Type: Application
    Filed: April 17, 2008
    Publication date: August 28, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-kil KANG, Dae-yong CHOI
  • System and method to supply chemical during semiconductor device fabrication
    Patent number: 7381269
    Abstract: Disclosed are a system and method for supplying chemical during a semiconductor device fabrication process. The system includes a tank to store the chemical, a dispensing unit to hold the chemical, a refill line connected between the tank and the dispensing unit to supply the chemical from the tank to the chemical liquid dispensing unit, and a dispensing line connected between the chemical dispensing unit and a semiconductor substrate to supply the chemical from the chemical dispensing unit to the semiconductor substrate.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: June 3, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-kil Kang, Dae-yong Choi
  • System and method to supply chemical during semiconductor device fabrication
    Publication number: 20050178794
    Abstract: Disclosed are a system and method for supplying chemical during a semiconductor device fabrication process. The system includes a tank to store the chemical, a dispensing unit to hold the chemical, a refill line connected between the tank and the dispensing unit to supply the chemical from the tank to the chemical liquid dispensing unit, and a dispensing line connected between the chemical dispensing unit and a semiconductor substrate to supply the chemical from the chemical dispensing unit to the semiconductor substrate.
    Type: Application
    Filed: February 2, 2005
    Publication date: August 18, 2005
    Inventors: Dong-kil Kang, Dae-yong Choi