Patents by Inventor Jae-shin Choi

Jae-shin Choi 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: 20240376644
    Abstract: The present invention pertains to a high-elasticity nylon cord and a method for producing same. The purpose of the present invention is to produce a nylon cord having a high elastic modulus by reducing the moisture content of a raw cord through a drying process during the production of the nylon cord.
    Type: Application
    Filed: August 23, 2022
    Publication date: November 14, 2024
    Inventors: Jae Shin CHOI, Jin Kyung PARK, Cheol KIM
  • Publication number: 20110003148
    Abstract: The present invention relates to a cellulose fiber having a highly homogeneous section, particularly to a cellulose fiber with lower Coefficient of Variation of section diameter (CV(%)). Specifically, the present invention relates to a cellulose fiber wherein Coefficient of Variation of section diameter (CV(%)) of a mono-filament constituting a multi-filament prepared by dissolving a cellulose powder in liquid N-methylmorpholine N-oxide (hereinafter referred to “NMMO”) is below 2.5. According to the present invention, a lyocell multi-filament is produced comprising the steps of (i) preparing a spinning solution by homogeneously dispersing, swelling and dissolving cellulose powder in a NMMO solution; (ii) spinning the spinning solution into an air gap through a spinning nozzle; and (iii) coagulating the extruded-spun spinning solution in a coagulation bath. In particular, the coagulating step is adjusted by means of a coagulation coefficient in the range of 0.8 to 1.
    Type: Application
    Filed: December 10, 2007
    Publication date: January 6, 2011
    Inventors: Tae Jung Lee, Jae Shin Choi, Byoung Min Lee
  • Publication number: 20070137279
    Abstract: A transferring device including a transferring device main body; a transferring arm which is coupled with the transferring device main body to transfer a workpiece; and a supporting hand which has a plurality of engaging parts coupled with the transferring arm and forming a predetermined angle therebetween to support the workpiece based on a force applied to the workpiece according to varying rotation speeds of the transferring arm. Thus, a transferring device can stably support a workpiece.
    Type: Application
    Filed: November 22, 2006
    Publication date: June 21, 2007
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Geun-seok Jang, Jae-shin Choi, Jae-rack Choi, Hyo-gyu Kim, Joong-nam Kwon, Tea-jun Sang