Patents by Inventor Wan-Sung Choi

Wan-Sung 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: 20240151440
    Abstract: An embodiment multi-way coolant valve includes an outer housing including first to third outer inlets, first to third outer outlets, and a pump mount portion coupled to one of the outer outlets, an inner housing rotatably provided within the outer housing and including penetration holes corresponding to the outer inlets and outlets, a coolant line defined by a selective connection of the penetration holes such that the outer inlets and outlets are selectively connected, pads interposed between an interior circumference of the outer housing and an exterior circumference of the inner housing at locations of the outer inlets and outlets, respectively, and a driving device connected to a rotation center of the inner housing to selectively rotate the inner housing within the outer housing, wherein the inner housing is configured to rotate by a preset interval according to a selected vehicle mode.
    Type: Application
    Filed: May 10, 2023
    Publication date: May 9, 2024
    Inventors: Wan Je Cho, Namho Park, Seong-Bin Jeong, Yeonho Kim, Tae Hee Kim, Jae-Eun Jeong, Man Hee Park, Jae Yeon Kim, Hyunjae Lee, Seong Woo Jeong, Jung Bum Choi, Ho Sung Kang, Jeong Wan Han
  • Publication number: 20140017203
    Abstract: The present invention relates to a recombinant adenovirus expressing an ?A-crystallin gene, and gene therapy for retinal vascular disease using the recombinant adenovirus. Gene therapy using the recombinant adenovirus comprising an ?A-crystallin gene of the present invention increases the expression level of the ?A-crystallin gene in the damaged retinal pericytes to suppress pericyte loss and death, retinal vascular leakage, and leukocyte adhesion surrounding retinal vessels, thereby protecting the pericytes. Therefore, it can be used for the prevention and treatment of various retinal vascular diseases including diabetic retinopathy.
    Type: Application
    Filed: January 20, 2012
    Publication date: January 16, 2014
    Applicant: Industry-Academic Cooperation Foundation Gyeongsang National University
    Inventors: Wan Sung Choi, Eun Mi Hwang, Jae Yong Park, Gyeong Jae Cho, Young Hee Kim, So Yun Park
  • Patent number: 5153727
    Abstract: An improved video signal processing circuit employs a control signal generating device, first and second delay circuits, a signal selection circuit, an addition circuit, a subtraction circuit, and an addition/subtraction circuit. The signal selection circuit is responsive to switch control signals from the control signal generating device for selecting a first signal path when providing signal contour compensation or a second signal path when functioning as a sensitivity enhancement device. At the final output terminal of the present circuit is produced a contour-compensated luminance signal under medium or high illumination selection control and an enlarged luminance signal without noise under low illumination selection control. Mode change is a function of and dependent on the amount of incident light to be automatically achieved by the control signal generating device.
    Type: Grant
    Filed: December 31, 1990
    Date of Patent: October 6, 1992
    Assignee: Samsung Electronic Co., Ltd.
    Inventor: Wan-Sung Choi