Patents by Inventor Young-Chun Kim

Young-Chun Kim 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: 20230380144
    Abstract: A semiconductor device includes: a semiconductor substrate; a plurality of bit line structures spaced apart from each other over the semiconductor substrate and each including a stacked structure of a bit line and a bit line hard mask; a contact pad positioned over the semiconductor substrate between the neighboring bit line structures; a contact structure including a stacked structure of a first contact formed over the contact pad and a second contact having a greater line width than the first contact; a first spacer structure interposed between the first contact and each of the bit line structures; and a second spacer structure interposed between the second contact and each of the bit line structures and having a smaller dielectric constant than the first spacer structure.
    Type: Application
    Filed: February 3, 2023
    Publication date: November 23, 2023
    Inventors: Hae Jung PARK, Dae Won Kim, Young Chun Kim, Hyun Jin Lee, Jin Hwan Jeon, Ri Choi
  • Patent number: 10859873
    Abstract: A display device includes a display panel, and a backlight unit which provides first light to the display panel, the first light being a combination of light having a first peak wavelength and light having a second peak wavelength. The display panel includes a wavelength conversion layer which converts a peak wavelength of the first light. The backlight unit includes laser diodes emitting the light having the second peak wavelength, and where the wavelength conversion layer includes quantum dots or phosphor.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: December 8, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Eui Jeong Kang, Young Chun Kim, Seok Hyun Nam
  • Patent number: 10738855
    Abstract: A bumper stopper installed on the shock absorber of a vehicle to respond to the impact of a cylinder lifting or lowering in the vertical direction depending on the running state of the vehicle. The bumper stopper is constructed such that a cylindrical dust cover having an opening formed at the lower end thereof is connected to a buffer member formed of peaks and troughs. The buffer member has a through hole through which a cylinder and rod of a shock absorber passes via a connection plate so that the buffer member and the dust cover are integrated with each other. It prevents air from being compressed inside the buffer member, thereby preventing component damage due to high pressure. Also, it prevents abnormal noise from occurring in the process of contact and separation between the cylinder and the connection plate, thereby providing improved ride comfort.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: August 11, 2020
    Assignee: KUNHWA ENG CO., LTD.
    Inventors: Young Chun Kim, Jung Seob Kim
  • Patent number: 10717504
    Abstract: Disclosed is a shut-off valve installed in an accommodation chamber regulating entry/exit of air. The shut-off valve includes: a body removably disposed in the accommodation chamber and having multiple air passage holes; a valve stem adapted to be moved vertically along a valve stem insertion hole formed in the body; a disc mounted on a disc engagement portion formed at a lower end of the valve stem to open/close at least one of the multiple air passage holes; a rotor disposed on an upper side of the body to vertically move the valve stem, the rotor being provided with an opening/closing indicator to check opening/closing of the shut-off valve outside the accommodation chamber, wherein the accommodation chamber has an upper wall, a lower wall, and a side wall, the body disposed passing through the upper wall and lower wall of the accommodation chamber, and the disc is located outside the accommodation chamber.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: July 21, 2020
    Assignees: HWASEUNG EXWILL CO., LTD.
    Inventors: Soon Hwan Yun, Young Chun Kim, Seong Jae Lee
  • Patent number: 10663007
    Abstract: An injection apparatus to mold a combined member with excellent performance to a constant-velocity joint boot to seal constant-velocity universal joints. The constant-velocity universal joints are used for smooth operation of a drive shaft which transfers driving power from a differential gear of a vehicle to a hub on which a tire is mounted. An injection method of the combined member of the constant-velocity joint boot. A constant-velocity joint boot manufactured by the injection method of the combined member.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: May 26, 2020
    Inventors: Yong-Hoon Hur, Young-Chun Kim
  • Publication number: 20190351982
    Abstract: Disclosed is a shut-off valve installed in an accommodation chamber regulating entry/exit of air. The shut-off valve includes: a body removably disposed in the accommodation chamber and having multiple air passage holes; a valve stem adapted to be moved vertically along a valve stem insertion hole formed in the body; a disc mounted on a disc engagement portion formed at a lower end of the valve stem to open/close at least one of the multiple air passage holes; a rotor disposed on an upper side of the body to vertically move the valve stem, the rotor being provided with an opening/closing indicator to check opening/closing of the shut-off valve outside the accommodation chamber, wherein the accommodation chamber has an upper wall, a lower wall, and a side wall, the body disposed passing through the upper wall and lower wall of the accommodation chamber, and the disc is located outside the accommodation chamber.
    Type: Application
    Filed: March 13, 2019
    Publication date: November 21, 2019
    Inventors: Soon Hwan YUN, Young Chun KIM, Seong Jae LEE
  • Publication number: 20190219125
    Abstract: A bumper stopper installed on the shock absorber of a vehicle to respond to the impact of a cylinder lifting or lowering in the vertical direction depending on the running state of the vehicle. The bumper stopper is constructed such that a cylindrical dust cover having an opening formed at the lower end thereof is connected to a buffer member formed of peaks and troughs. The buffer member has a through hole through which a cylinder and rod of a shock absorber passes via a connection plate so that the buffer member and the dust cover are integrated with each other. It prevents air from being compressed inside the buffer member, thereby preventing component damage due to high pressure. Also, it prevents abnormal noise from occurring in the process of contact and separation between the cylinder and the connection plate, thereby providing improved ride comfort.
    Type: Application
    Filed: January 10, 2019
    Publication date: July 18, 2019
    Inventors: YOUNG CHUN KIM, JUNG SEOB KIM
  • Publication number: 20190162243
    Abstract: A compact boot of a constant velocity joint having a housing and a drive shaft, including: a large diameter portion connected to the housing; a small diameter portion connected to the drive shaft, positioned in the same central axis as the large diameter portion, and having a smaller external diameter than the large diameter portion; and a corrugated portion connecting between the large diameter portion and the small diameter portion, and having a plurality of peaks and valleys. The plurality of peaks and valleys are formed to be parallel with the central axis of the large diameter portion and the small diameter portion, and the plurality of peaks are not radially protruded to be converged between the external diameter of the large diameter portion and the external diameter of the small diameter portion.
    Type: Application
    Filed: May 21, 2018
    Publication date: May 30, 2019
    Applicant: KUNHWA ENG CO., LTD.
    Inventors: In Tae KIM, Young Chun KIM
  • Publication number: 20180284541
    Abstract: A display device includes a display panel, and a backlight unit which provides first light to the display panel, the first light being a combination of light having a first peak wavelength and light having a second peak wavelength. The display panel includes a wavelength conversion layer which converts a peak wavelength of the first light. The backlight unit includes laser diodes emitting the light having the second peak wavelength, and where the wavelength conversion layer includes quantum dots or phosphor.
    Type: Application
    Filed: March 12, 2018
    Publication date: October 4, 2018
    Inventors: Eui Jeong KANG, Young Chun KIM, Seok Hyun NAM
  • Patent number: 10007054
    Abstract: A backlight assembly includes a circuit substrate, a light source arranged on the circuit substrate, a light guide plate having a first surface configured to receive light emitted from the light source and a second and different surface to emit light, a wavelength converting unit arranged between the light source and the light guide plate and a spacer arranged around the light source. The spacer is spaced apart from the light source in a direction perpendicular to the light-emitting direction of the light emitted from the light source.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: June 26, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyung Min Kim, Young Chun Kim, Seung Hwan Baek
  • Publication number: 20180133941
    Abstract: An injection apparatus to mold a combined member with excellent performance to a constant-velocity joint boot to seal constant-velocity universal joints. The constant-velocity universal joints are used for smooth operation of a drive shaft which transfers driving power from a differential gear of a vehicle to a hub on which a tire is mounted. An injection method of the combined member of the constant-velocity joint boot. A constant-velocity joint boot manufactured by the injection method of the combined member.
    Type: Application
    Filed: December 23, 2016
    Publication date: May 17, 2018
    Inventors: YONG-HOON HUR, YOUNG-CHUN KIM
  • Patent number: 9470839
    Abstract: Provided are a light source module and a backlight unit. According to an embodiment, the light source module comprises a circuit board, at least one LED chip electrically connected onto the circuit board, a reflective surface on an upper surface of the LED chip configured to reflect light, and a fluorescent surface on at least one side surface of the LED chip configured to emit the light.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: October 18, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byoung Dae Ye, Young Chun Kim, Hyuk Hwan Kim
  • Publication number: 20150369993
    Abstract: A backlight assembly includes a circuit substrate, a light source arranged on the circuit substrate, a light guide plate having a first surface configured to receive light emitted from the light source and a second and different surface to emit light, a wavelength converting unit arranged between the light source and the light guide plate and a spacer arranged around the light source. The spacer is spaced apart from the light source in a direction perpendicular to the light-emitting direction of the light emitted from the light source.
    Type: Application
    Filed: January 27, 2015
    Publication date: December 24, 2015
    Inventors: Kyung Min KIM, Young Chun KIM, Seung Hwan BAEK
  • Publication number: 20150369997
    Abstract: Provided are a light source module and a backlight unit. According to an embodiment, the light source module comprises a circuit board, at least one LED chip electrically connected onto the circuit board, a reflective surface on an upper surface of the LED chip configured to reflect light, and a fluorescent surface on at least one side surface of the LED chip configured to emit the light.
    Type: Application
    Filed: October 8, 2014
    Publication date: December 24, 2015
    Inventors: Byoung Dae YE, Young Chun KIM, Hyuk Hwan KIM
  • Patent number: 9159874
    Abstract: A light emitting diode includes a conductive substrate and a light emitting structure which includes a first semiconductor layer disposed on the conductive substrate, an active layer disposed on the first semiconductor layer, and a second semiconductor layer disposed on the active layer, a semi-transmissive layer which is disposed on the light emitting structure, and a hole which is defined in the light-emitting structure, and filled with a light emitting material which emits light having a color different from a color of light emitted from the active layer.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: October 13, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young Chun Kim, Myeong Ju Shin, Jung Hoon Shin
  • Publication number: 20150171269
    Abstract: A light emitting diode includes a conductive substrate and a light emitting structure which includes a first semiconductor layer disposed on the conductive substrate, an active layer disposed on the first semiconductor layer, and a second semiconductor layer disposed on the active layer, a semi-transmissive layer which is disposed on the light emitting structure, and a hole which is defined in the light-emitting structure, and filled with a light emitting material which emits light having a color different from a color of light emitted from the active layer.
    Type: Application
    Filed: March 28, 2014
    Publication date: June 18, 2015
    Applicant: Samsung Display Co. Ltd.
    Inventors: Young Chun KIM, Myeong Ju SHIN, Jung Hoon SHIN
  • Patent number: 9052421
    Abstract: A backlight unit for a display device includes a light source module which emits light, a light guiding plate which guides the light incident from the light source module toward a front surface thereof, and a light beam spread angle regulating sheet disposed between the light source module and a lateral surface of the light guiding plate, where the light beam spread angle regulating sheet regulates a light beam spread angle of the light incident from the light source module.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: June 9, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young-Min Park, Kyung-Min Kim, Young Chun Kim, Jung Hoon Shin
  • Publication number: 20150098247
    Abstract: A backlight assembly includes a light source, a circuit board on which the light source is disposed, a light guide plate having a light incident surface and a light emitting surface, a bottom case accommodating the light guide plate, a fixing frame coupled to the bottom case and fixing the circuit board, and a heat dissipation apparatus disposed between the light source and the light guide plate and including a light-transmitting unit that transmits light.
    Type: Application
    Filed: May 27, 2014
    Publication date: April 9, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung-Hoon SHIN, Hyuk-Hwan KIM, Su-Chang RYU, Young-Chun KIM, Won-Jin KIM
  • Publication number: 20150036384
    Abstract: A light emitting module includes a first and second light source spaced apart from each other and each configured to generate and emit light; the first light source; and a metal board which is electrically connected to the first and second light sources. The metal board includes a body portion upon which the first and second light sources are disposed; first and second side portions respectively on first and second ends of the body portion; a first insulation layer which is between the body portion and the first side portion and insulates the body portion from the first side portion; and a second insulation layer which is between the body portion and the second side portion and insulates the body portion from the second side portion.
    Type: Application
    Filed: April 29, 2014
    Publication date: February 5, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Young-Min PARK, Young-Chun KIM, Seok-Hyun NAM, Se-Ki PARK, Jung-Hoon SHIN, Jung-Hyun YANG
  • Publication number: 20140226363
    Abstract: A backlight assembly includes a first light guide member; a second light guide member overlapping the first light guide member; a groove defined in the second light guide member; and a light source unit in the groove. The light source unit generates and supplies light to the first light guide member and the second light guide member.
    Type: Application
    Filed: July 2, 2013
    Publication date: August 14, 2014
    Inventors: Myung-Seok KWON, So Jeong LA, Do Hun KIM, Young Chun KIM, Young-Min PARK, Jung Hoon SHIN