Patents by Inventor Chung Keun Yoo

Chung Keun Yoo 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: 20160187938
    Abstract: An electronic device capable of maintaining an angle between two display units at a certain angle, without any hinge structure is provided. The electronic device includes a display unit including a first display unit and a functional unit spaced apart from each other, the functional unit being equipped with an electronic component, a cover unit including a first cover part and a second cover part, to which the first display unit and the functional unit are respectively attached, and a connection unit including a shape-preserving member, which is configured to allow the display unit and the functional unit to be maintained at a certain angle, when an angle between the first cover part and the second cover part is changed by an external force.
    Type: Application
    Filed: November 12, 2015
    Publication date: June 30, 2016
    Inventors: Kwang Soo HAN, Chung Keun YOO, Jin Hyuk CHOI, Byoung Soo LEE, Jae Woo LEE, Ji Hoon PARK
  • Patent number: 9004434
    Abstract: A cradle includes a cradle body having a push button and a pair of holding arms facing each other in a compressed state by first elastic members in the cradle body, receding from each other while the push button is being pressed, and advancing toward each other while applying pressure to the holding arms to hold a portable body mounted on the cradle body. A driver is disposed in the cradle body and in interaction with the pair of holding arms.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: April 14, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yun-Cheol Kang, Won-Tae Kim, Chung-Keun Yoo
  • Patent number: 8954120
    Abstract: Provided is a cradling apparatus for a portable communication device to allow the portable communication device to slide and be inclinedly cradled through pressurization. To this end, a cradling apparatus for a portable communication device includes a first housing, a second housing, and link portions provided between the first housing and the second housing to slide and inclinedly cradle the second housing. The apparatus further includes guide portions coupled to both sides of the first housing, guide members slidably coupled with the guide portions, hinge portions protruding from the guide members, the hinge portions being rotatably coupled with the second housing, and pressurizing portions provided on one ends of the hinge portions to pressurize the hinge portions and the guide members.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: February 10, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chung-Keun Yoo, Yun-Cheol Kang
  • Publication number: 20150035809
    Abstract: One or more embodiments provide an electronic pen detachable device and a mobile device including the same. An embodiment provides an electronic pen detachable device and a mobile device including the same in which a detector switch structure is coupled to a push-push structure. The electronic pen detachable device includes a moving body that enables an electronic pen to be attached when pushing one time the electronic pen and that enables the electronic pen to be separated when pushing again one time the electronic pen. The electronic pen detachable device also includes a detector that detects attachment or separation of the electronic pen. The electronic pen detachable device also includes a moving switch coupled to the moving body and that controls on/off of the detector by attachment or separation of the electronic pen.
    Type: Application
    Filed: August 5, 2014
    Publication date: February 5, 2015
    Inventors: Jong Hae Kim, Chung Keun Yoo
  • Patent number: 8838191
    Abstract: A portable communication device and a sliding and rotating hinge apparatus are provided. The device includes a first housing; a second housing, facing the first housing when the device is in a folded state; and a hinge unit. The hinge unit has a first portion attached to the second housing and is configured to slide, together with the second housing, with respect to the first housing to reach a disengaged position. A second portion of the hinge unit automatically rotates once the disengaged position is reached, thereby automatically rotating the second housing around a hinge axis of the hinge unit to open the device to an unfolded state.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: September 16, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Hae Kim, Chung-Keun Yoo
  • Patent number: 8767395
    Abstract: Provided is a slim-type cradling apparatus for a portable terminal. The disclosed cradling apparatus includes a cradling body and a retaining device interworking with rotation of the cradling body to support a closed state and a rotated state of the cradling body.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: July 1, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chung-Keun Yoo
  • Publication number: 20130292296
    Abstract: A cradle is provided. The cradle includes a cradle body having a push button, a pair of holding arms facing each other in a compressed state by first elastic members in the cradle body, receding from each other while the push button is being pressed, and advancing toward each other while applying pressure to the holding arms to hold a portable body mounted on the cradle body, and a driver disposed in the cradle body and in interaction with the pair of holding arms.
    Type: Application
    Filed: February 26, 2013
    Publication date: November 7, 2013
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Yun-Cheol KANG, Won-Tae KIM, Chung-Keun YOO
  • Publication number: 20130033804
    Abstract: A spring module includes: a resilient member having a pair of wire parts extending side by side along an axial direction and a connecting part connecting the wire parts at ends of the wire parts; and fastening members provided at opposite ends of the resilient member, respectively, wherein the resilient member provides a resilient force, which is applied in a direction which is inclined from the axial direction if the fastening members are positioned so as to be inclined away the axial direction, the resilient member being deformed as the fastening members move closer to or further away from each other.
    Type: Application
    Filed: July 10, 2012
    Publication date: February 7, 2013
    Applicant: Samsung Electronics Co., LTD.
    Inventors: Sung-Gwan WOO, Chung-Keun YOO, Hyun-Suk SHIN
  • Patent number: 8363391
    Abstract: A portable terminal including a pair of housings and a hinge apparatus for coupling the housings in such a way that the housings pivot with respect to each other is provided. The hinge apparatus includes a hinge bracket fixed to a first housing of the pair of housings, a pivot member connected to a second housing of the pair of housings and pivotably coupled to the hinge bracket to pivot with respect to a hinge axis, a cam surface provided on the pivot member around the hinge axis, the cam surface comprising at least a pair of recess portions, and a cam member received to protrude and retreat in perpendicular to the hinge axis on the hinge bracket. When the pivot member pivots, the cam member slides and contacts the cam surface and is engaged with one of the recess portions on the cam surface.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: January 29, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won-Tae Kim, Yun-Cheol Kang, Sung-Ho Ahn, Chung-Keun Yoo
  • Patent number: 8292641
    Abstract: Disclosed is a contact terminal closing device for a portable storage device. The disclosed contact terminal closing device includes: a contact terminal received in a housing; a guide frame; a push sliding knob coupled to the guide frame in such a manner that depending on whether the push sliding knob is manually pushed or not, the push sliding knob locks the contact terminal or releases the contact terminal from the locked state, the push sliding knob being moved in the longitudinal direction of the guide frame to manually retract the contact terminal into the housing or to manually extract the contact terminal from the housing; and one or more shielding members provided on the guide frame to be cooperatively moved depending on the movement of the push sliding knob, the shielding members being adapted to completely shield the contact terminal from the outside.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: October 23, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Hae Kim, Chung-Keun Yoo
  • Publication number: 20120224305
    Abstract: Provided is a slim-type cradling apparatus for a portable terminal. The disclosed cradling apparatus includes a cradling body and a retaining device interworking with rotation of the cradling body to support a closed state and a rotated state of the cradling body.
    Type: Application
    Filed: January 9, 2012
    Publication date: September 6, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Chung-Keun YOO
  • Patent number: 8243439
    Abstract: The present invention relates to a sliding opening and closing device for a portable terminal. The sliding opening and closing device for a portable terminal according to the present invention includes: a first plate; a second plate slidably joined to the first plate; a cam profile formed at the first plate along a sliding direction of the second plate; and an elastic module mounted on the second plate, wherein one end of the elastic module is in contact with the cam profile to slide therealong. A guide part is formed at the first plate and the cam profile is formed along an edge portion of the guide part.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: August 14, 2012
    Inventor: Chung Keun Yoo
  • Publication number: 20120178508
    Abstract: Provided is a cradling apparatus for a portable communication device to allow the portable communication device to slide and be inclinedly cradled through pressurization. To this end, a cradling apparatus for a portable communication device includes a first housing, a second housing, and link portions provided between the first housing and the second housing to slide and inclinedly cradle the second housing. The apparatus further includes guide portions coupled to both sides of the first housing, guide members slidably coupled with the guide portions, hinge portions protruding from the guide members, the hinge portions being rotatably coupled with the second housing, and pressurizing portions provided on one ends of the hinge portions to pressurize the hinge portions and the guide members.
    Type: Application
    Filed: December 29, 2011
    Publication date: July 12, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chung-Keun YOO, Yun-Cheol KANG
  • Publication number: 20120165082
    Abstract: A portable communication device and a sliding and rotating hinge apparatus are provided. The device includes a first housing; a second housing, facing the first housing when the device is in a folded state; and a hinge unit. The hinge unit has a first portion attached to the second housing and is configured to slide, together with the second housing, with respect to the first housing to reach a disengaged position. A second portion of the hinge unit automatically rotates once the disengaged position is reached, thereby automatically rotating the second housing around a hinge axis of the hinge unit to open the device to an unfolded state.
    Type: Application
    Filed: December 23, 2011
    Publication date: June 28, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-Hae KIM, Chung-Keun YOO
  • Publication number: 20120052703
    Abstract: Disclosed is a contact terminal closing device for a portable storage device. The disclosed contact terminal closing device includes: a contact terminal received in a housing; a guide frame; a push sliding knob coupled to the guide frame in such a manner that depending on whether the push sliding knob is manually pushed or not, the push sliding knob locks the contact terminal or releases the contact terminal from the locked state, the push sliding knob being moved in the longitudinal direction of the guide frame to manually retract the contact terminal into the housing or to manually extract the contact terminal from the housing; and one or more shielding members provided on the guide frame to be cooperatively moved depending on the movement of the push sliding knob, the shielding members being adapted to completely shield the contact terminal from the outside.
    Type: Application
    Filed: July 12, 2011
    Publication date: March 1, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-Hae KIM, Chung-Keun YOO
  • Publication number: 20110182011
    Abstract: A portable terminal including a pair of housings and a hinge apparatus for coupling the housings in such a way that the housings pivot with respect to each other are provided. The hinge apparatus includes a hinge bracket fixed to a first housing of the pair of housings, a pivot member connected to a second housing of the pair of housings and pivotably coupled to the hinge bracket to pivot with respect to a hinge axis, a cam surface provided on the pivot member around the hinge axis, the cam surface comprising at least a pair of recess portions, and a cam member received to protrude and retreat in perpendicular to the hinge axis on the hinge bracket. When the pivot member pivots, the cam member slides and contacts the cam surface and is engaged with one of the recess portions on the cam surface, such that at least the housings are folded to each other or are kept stationary in a position where the housings are inclined with respect to each other at a predetermined angle.
    Type: Application
    Filed: January 14, 2011
    Publication date: July 28, 2011
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Won-Tae KIM, Yun-Cheol KANG, Sung-Ho AHN, Chung-Keun YOO
  • Publication number: 20110038106
    Abstract: The present invention relates to a sliding opening and closing device for a portable terminal. The sliding opening and closing device for a portable terminal according to the present invention includes: a first plate; a second plate slidably joined to the first plate; a cam profile formed at the first plate along a sliding direction of the second plate; and an elastic module mounted on the second plate, wherein one end of the elastic module is in contact with the cam profile to slide therealong. A guide part is formed at the first plate and the cam profile is formed along an edge portion of the guide part.
    Type: Application
    Filed: October 17, 2008
    Publication date: February 17, 2011
    Applicant: LAIRD TECHNOLOGIES KOREA YH
    Inventor: Chung Keun Yoo