Patents by Inventor Hee Jin Choi

Hee Jin 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: 20090315816
    Abstract: A display apparatus includes a display panel, a light generator disposed under the display panel to generate light, a light sensor disposed between the display panel and the light generator and which senses a first portion of the light generated by the light generator and reflected by an object disposed above the display panel, a light diffuser disposed between the display panel and the light sensor, and an image processor which provides image data corresponding to the first portion of the light sensed by the light sensor to the display panel.
    Type: Application
    Filed: March 26, 2009
    Publication date: December 24, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee-Jin Choi, Seiki Takahashi, Bong-Hyun You
  • Publication number: 20090231497
    Abstract: A liquid crystal display includes: a liquid crystal panel; a plurality of first light sources disposed below the liquid crystal panel; a first diffusion member disposed between the liquid crystal panel and the first light sources; a plurality of second light sources disposed below the liquid crystal panel and which emit a sensing signal toward the liquid crystal panel; and a plurality of sensors disposed in or below the liquid crystal panel. The sensing signal emitted from the plurality of second light sources toward the liquid crystal panel is reflected by an object disposed above the liquid crystal panel and is detected by the plurality of sensors before transmitting through the first diffusion member away from the liquid crystal panel such that a shape of the object is determined based on the sensing signal reflected from the object and detected by the plurality of sensors.
    Type: Application
    Filed: October 1, 2008
    Publication date: September 17, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seiki TAKAHASHI, Bong-Hyun YOU, Hee-Jin CHOI, Sang-Soo KIM, Yong-Hwi KIM
  • Publication number: 20090231511
    Abstract: A display device includes: a first substrate; a gate line formed on the first substrate; a first switching device connected to the gate line; a pixel electrode connected to the first switching device; a light-receiving device formed on the first substrate and which senses infrared light; and a light-shielding pattern disposed between the first substrate and the light receiving device.
    Type: Application
    Filed: March 13, 2009
    Publication date: September 17, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seiki TAKAHASHI, Bong-Hyun YOU, Hee-Jin CHOI
  • Publication number: 20090008413
    Abstract: An airless dispensing pump container with an airtight push down type nozzle head is disclosed, which comprises a content discharge part which is installed at a nozzle engaging hole of the nozzle head; a ball valve support which is engaged at a lower side of the stem; and a content compression piston support shoulder which is provided at an inner upper wall of the content storing container. In the present invention, a vacuum sealing function is enhanced in the whole structure of the present invention, and a content opening and closing valve member of a content discharge part provided at a nozzle head is automatically opened and closed, along with a reliable discharge of the content, and a reverse flow and leakage are prevented by improving a structure of a content pump piston which sucks and transfers the content.
    Type: Application
    Filed: September 10, 2007
    Publication date: January 8, 2009
    Inventors: Hee Jin Choi, Yu Kwang, Won hee Lee
  • Publication number: 20090008412
    Abstract: A foam pump dispenser that has a prevention function against any reverse flow is disclosed, which comprises an air guide which is engaged at a lower side of the air and liquid mixing chamber of the piston cover member; a liquid leakage prevention spring which is located between the piston cover member and the piston member; and a liquid leakage prevention valve which is covered on the upper side of the liquid compression piston. The foam pump dispenser with the above construction is able to prevent a leakage of liquid, and is able to obtain a reliable fixed supply of air in a pump dispenser designed to properly mix liquid such as foaming cleanser, foam hand soap, shave foam, and hair mousse, etc. with air and to pump out in a foam shape.
    Type: Application
    Filed: September 10, 2007
    Publication date: January 8, 2009
    Inventors: Hee Jin Choi, Yu Kwang Oh, Won hee Lee
  • Publication number: 20080257911
    Abstract: An airless dispensing pump container with an airtight nozzle head of a push down type capable of discharging a fixed amount of content is disclosed, in which a vacuum sealing function is enhanced in the whole structure of the present invention, and a content opening and closing plate of a content opening and closing valve member in the construction of a content discharge part of a nozzle head is automatically opened and closed, along with a reliable discharge of the content, and a reverse flow and leakage are prevented by improving a structure of a content pump piston which sucks and transfers the content. When a pump cylinder is slanted at a certain angle along with the content storing container or in case of a content having high viscosity, it is possible to improve the operation errors of the ball valve by providing an inventive structure of the ball valve support installed at a lower side of the stem.
    Type: Application
    Filed: April 4, 2008
    Publication date: October 23, 2008
    Inventors: Hee Jin Choi, Yu Kwang Oh, Won Hee Lee
  • Publication number: 20080251540
    Abstract: A foam pump dispenser that has a prevention function against any reverse flow is disclosed, which comprises an air guide which is engaged at a lower side of the air and liquid mixing chamber of the piston cover member; a liquid leakage prevention spring which is located between the piston cover member and the piston member; and a liquid leakage prevention valve which is covered on the upper side of the liquid compression piston. The foam pump dispenser with the above construction is able to prevent a leakage of liquid, and is able to obtain a reliable fixed supply of air in a pump dispenser designed to properly mix liquid such as foaming cleanser, foam hand soap, shave foam, and hair mousse, etc. with air and to pump out in a foam shape.
    Type: Application
    Filed: April 4, 2008
    Publication date: October 16, 2008
    Inventors: Hee Jin CHOI, Yu Kwang OH, Won hee LEE
  • Patent number: 7339574
    Abstract: A haptic mouse interface system includes a mouse, a first force feedback unit for providing a first force feedback in a first direction of a virtual object to the user's hand and arm, a second force feedback unit for providing a second force feedback in second and third directions to the user's fingers, and a tactile feedback unit for providing tactile sensations to the user's fingers. The first force feedback unit has first and second encoders to receive signals relating to a first direction of the virtual object, first and second motors driven by the first and second encoders, and a linkage, which is connected between shafts of the first and second motors and the mouse. The second force feedback unit is provided in the mouse, and has a third encoder to receive a signal relating to the second and third directions of the virtual object, a third motor driven by the third encoder and having a shaft, a pair of finger pads provided at both sides of the mouse and linearly moved by the third motor.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: March 4, 2008
    Assignee: Korean Advanced Institute of Science and Technology
    Inventors: Ki Uk Kyung, Dong Soo Kwon, Hee Jin Choi, Gi Hun Yang, Seung Woo Son
  • Patent number: 6926175
    Abstract: Disclosed is a constant discharge structure for a nozzle head lowering type vacuum cosmetics container for containing high functional cosmetics. The constant discharge structure includes a liquid collecting chamber having a liquid inflow hole in the lower portion of a piston support member mounted in the container, a groove having an inclined short jaw, a support jaw and a liquid inlet hole and an open/close unit for opening/closing the liquid inflow hole in the lower portion of a central shaft, an elastic pumping member being inserted into the groove of the shaft and including a hole having an inner wall for opening/closing the liquid inlet hole on a flat surface unit, and a cylinder incorporated inside a piston for supporting the central shaft.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: August 9, 2005
    Assignee: CDR Co., LTD
    Inventors: Hee Jin Choi, Yu Kwang Oh
  • Publication number: 20040140953
    Abstract: A haptic mouse interface system includes a mouse, a first force feedback unit for providing a first force feedback in a first direction of a virtual object to the user's hand and arm, a second force feedback unit for providing a second force feedback in second and third directions to the user's fingers, and a tactile feedback unit for providing tactile sensations to the user's fingers. The first force feedback unit has first and second encoders to receive signals relating to a first direction of the virtual object, first and second motors driven by the first and second encoders, and a linkage, which is connected between shafts of the first and second motors and the mouse. The second force feedback unit is provided in the mouse, and has a third encoder to receive a signal relating to the second and third directions of the virtual object, a third motor driven by the third encoder and having a shaft, a pair of finger pads provided at both sides of the mouse and linearly moved by the third motor.
    Type: Application
    Filed: December 10, 2003
    Publication date: July 22, 2004
    Inventors: Ki Uk Kyung, Dong Soo Kwon, Hee Jin Choi, Gi Hun Yang, Seung Woo Son