Patents by Inventor Hyoung Gil Choi

Hyoung Gil 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).

  • Patent number: 11256099
    Abstract: A head-mounted display (HMD) apparatus includes a main body having a first surface facing a user's facial side, at least one connecting part connected to at least one surface of the main body, and a wearing part having a strap form, the wearing part being connected to the at least one connecting part and surrounding a portion of a head of the user such that the main body is held on the user's facial side. The main body includes a first support part extending from a portion of the first surface. The wearing part includes a second support part formed on an inner circumferential surface of a front portion of the wearing part facing a forehead of the user. The first support part and the second support part are supported on the user's forehead, thereby minimizing pressure exerted on zygomatic regions and relieving pressure and weight felt by the user.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: February 22, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung Hoon Park, Tae Hyung Kwon, Jung Soo Kim, Joong Kyung Park, Won Ho Shin, Young Gun Lee, Jin Choul Lee, Hyoung Gil Choi
  • Publication number: 20180364491
    Abstract: A head-mounted display (HMD) apparatus includes a main body having a first surface facing a user's facial side, at least one connecting part connected to at least one surface of the main body, and a wearing part having a strap form, the wearing part being connected to the at least one connecting part and surrounding a portion of a head of the user such that the main body is held on the user's facial side. The main body includes a first support part extending from a portion of the first surface. The wearing part includes a second support part formed on an inner circumferential surface of a front portion of the wearing part facing a forehead of the user. The first support part and the second support part are supported on the user's forehead, thereby minimizing pressure exerted on zygomatic regions and relieving pressure and weight felt by the user.
    Type: Application
    Filed: May 9, 2018
    Publication date: December 20, 2018
    Inventors: Jung Hoon PARK, Tae Hyung KWON, Jung Soo KIM, Joong Kyung PARK, Won Ho SHIN, Young Gun LEE, Jin Choul LEE, Hyoung Gil CHOI
  • Patent number: 9857365
    Abstract: Described are immunoassay kits having a conjugate structure separate from an immunochromatographic strip in which the conjugate structure is freeze-dried with uniform droplet size, and related compositions and methods. The unique structure of the kits described here permits sample containing analyte to be reacted uniformly with the conjugate structure before being subjected to immunochromatography by application to the strip. This results in improved performance of the assay. In addition, the freeze-dried conjugate structure can be stored without contamination and is easy to carry. In addition, the freeze-dried conjugate structure can be rapidly and uniformly dissolved so that it is immediately allowed to react with a mixture of a buffer and a sample, the reaction product then being analyzed by immunochromatography, making it suitable for use in point-of-care testing.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: January 2, 2018
    Assignee: SD Biosensor, Inc.
    Inventors: Hyoung Gil Choi, Sung Yub Hong, Hee Young Hwang, Hyo Keun Lee
  • Publication number: 20150160203
    Abstract: The present invention relates to a freeze-dried conjugate structure for immunochromatography, an immunoassay kit comprising the freeze-dried conjugate structure and an immunochromatographic strip, and a method for qualitatively or quantitatively analyzing an analyte in a sample using the immunoassay kit. Because a sample is subjected to immunochromatography after reacting uniformly with a freeze-dried conjugate structure separately prepared according to the present invention externally, quantitative analysis can be performed with high reproducibility and linearity depending on a concentration compared to a conventional assay method which is performed using an immunochromatographic strip comprising a conjugate pad prepared by adsorbing a conjugate. In addition, the freeze-dried conjugate structure of the present invention can be provided in a state in which it is received in a chamber additionally comprising a cap. Thus, it can be stored without contamination and is easy to carry.
    Type: Application
    Filed: May 31, 2013
    Publication date: June 11, 2015
    Inventors: Hyoung Gil Choi, Sung Yub Hong, Hee Young Hwang, Hyo Keun Lee