Patents by Inventor Dong Geun Lee

Dong Geun Lee 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: 9465350
    Abstract: A toner cartridge and an electrophotographic image forming apparatus are provided. The toner cartridge attachable to, or detachable from a main body of an image forming apparatus includes a toner containing unit, a waste toner containing unit that is disposed below the toner containing unit in a gravitational direction and comprises a waste toner inlet through which waste toner flows, a first waste toner transporting member that transports the waste toner from the waste toner inlet in a length direction of the waste toner containing unit, and a second waste toner transporting member that transports the waste toner that is transported in the length direction of the waste toner containing unit in a width direction of the waste toner containing unit to disperse the waste toner in an inner portion of the waste toner containing unit, wherein a rotational center of the second waste toner transporting member is lower than a rotational center of the first waste toner transporting member.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: October 11, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ho-jin Jang, Dong-geun Lee, Byeong-no Jeong, Ji-won Moon, Seung-chan Park
  • Patent number: 9394403
    Abstract: The polycarbonate resin of the present invention comprises: a repeating unit represented by formula 1 of claim 1; and a repeating unit represented by formula 2 of claim 1. The polycarbonate resin has excellent scratch resistance, transparency and tensile elongation.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: July 19, 2016
    Assignee: Cheil Industries Inc.
    Inventors: Jong Chan Hur, O Sung Kwon, Il Hwan Yang, Dong Geun Lee, Bok Nam Jang, Jun Ho Chi, Woo Suk Chei
  • Patent number: 9337784
    Abstract: An apparatus of a power amplifier is provided. The apparatus includes an input boosting circuit configured to match a second harmonic input signal using a harmonic control circuit of an input stage to maximize an efficiency and an output power, a die cell configured to receive and amplify an output signal of the input boosting circuit, and an output boosting circuit configured to receive an output signal of the die cell and to match a second harmonic output signal of the output signal of the die cell using a harmonic control circuit of an output stage to maximize the efficiency and the output power.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: May 10, 2016
    Assignees: Samsung Electronics Co., Ltd., Postech Academy—Industry Foundation
    Inventors: Il-Du Kim, Bumman Kim, Jung-Hwan Son, Kyoung-Tae Kim, Dong-Geun Lee
  • Patent number: 9284450
    Abstract: The polycarbonate resin composition includes: a polycarbonate component, which includes an aromatic polycarbonate resin and a copolymerized polycarbonate resin including a repeat unit represented by Formula 1 and a repeat unit represented by Formula 2; and a flame retardant, and has a scratch width of about 310 ?m or less as measured by Ball-type Scratch Profile (BSP) test; a pencil hardness rating of F or higher; a flame retardancy level of V-0 or higher as measured on a 2.0 mm thick specimen according to UL94; and a transmittance of about 80% or more as measured in accordance with ASTM D1003. The polycarbonate resin composition can exhibit excellent properties in terms of scratch resistance, flame retardancy and transparency. wherein R1 and R2 are the same or different and are each independently substituted or unsubstituted C1 to C6 alkyl, and a and b are the same or different and are each independently an integer from 1 to 4.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: March 15, 2016
    Assignee: Cheil Industries Inc.
    Inventors: Jong Chan Hur, Jun Ho Chi, Dong Geun Lee, Woo Suk Chei
  • Patent number: 9268085
    Abstract: A liquid crystal display device including a liquid crystal panel in a display area and a non-display area; a plurality of optical sheets under the liquid crystal panel; a light guide plate under the optical sheets; a light source configured to apply light to the light guide plate; and a support main connected to the liquid crystal panel, the optical sheets and the light guide plate and including a first support guide in back of the liquid crystal panel; a second support guide in back of the optical sheets and extending from a side surface of the first support guide; and a third support guide extending from a side surface of the second support guide. An inside portion of the third support guide is narrower than an outside portion of the third support guide.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: February 23, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Dong Im Huo, Sang Mo Yang, Kyoung Tae Kim, Dong Geun Lee
  • Publication number: 20150355595
    Abstract: A toner cartridge and an electrophotographic image forming apparatus are provided. The toner cartridge attachable to, or detachable from a main body of an image forming apparatus includes a toner containing unit, a waste toner containing unit that is disposed below the toner containing unit in a gravitational direction and comprises a waste toner inlet through which waste toner flows, a first waste toner transporting member that transports the waste toner from the waste toner inlet in a length direction of the waste toner containing unit, and a second waste toner transporting member that transports the waste toner that is transported in the length direction of the waste toner containing unit in a width direction of the waste toner containing unit to disperse the waste toner in an inner portion of the waste toner containing unit, wherein a rotational center of the second waste toner transporting member is lower than a rotational center of the first waste toner transporting member.
    Type: Application
    Filed: March 16, 2015
    Publication date: December 10, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ho-jin JANG, Dong-geun Lee, Byeong-no Jeong, Ji-won Moon, Seung-chan Park
  • Patent number: 9180918
    Abstract: A cab tilting device includes: a left torsion bar connected with the left bottom of a cab of a vehicle to generate twisting restoring force to tilt the cab toward the front of the vehicle from the left bottom of the cab in a width direction of the cab; and a right torsion bar connected with the right bottom of the cab to generate the twisting restoring force to tilt the cab toward the front of the vehicle from the right bottom of the cab in the width direction of the cab to generate the same twisting tilting force from the left side to the right side of the cab.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: November 10, 2015
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Seunghyun Oh, Byungbae Kim, Dong Geun Lee, Dae Su Kim
  • Publication number: 20150299462
    Abstract: The polycarbonate resin composition of the present invention comprises: a polycarbonate ingredient including a copolymerized polycarbonate resin and an aromatic polycarbonate resin, the copolymerized polycarbonate resin having a repeating unit represented by chemical formula 1 of claim 1, a repeating unit represented by chemical formula 2 of claim 1, and a repeating unit represented by chemical formula 3 of claim 1; and an acrylic-based impact reinforcing agent. The polycarbonate resin composition has excellent scratch resistance, impact resistance, and heat resistance.
    Type: Application
    Filed: April 2, 2013
    Publication date: October 22, 2015
    Inventors: Dong Geun LEE, O Sung KWON, Jun Ho CHI, Jong Chan HUR
  • Publication number: 20150299388
    Abstract: The polycarbonate resin of the present invention comprises: a repeating unit represented by formula 1 of claim 1; and a repeating unit represented by formula 2 of claim 1. The polycarbonate resin has excellent scratch resistance, transparency and tensile elongation.
    Type: Application
    Filed: January 30, 2013
    Publication date: October 22, 2015
    Inventors: Jong Chan HUR, O Sung KWON, Il Hwan YANG, Dong Geun LEE, Bok Nam JANG, Jun Ho CHI, Woo Suk CHEI
  • Publication number: 20150263351
    Abstract: The present invention relates to an anode for a direct carbon fuel cell based on a molten carbonate or molten hydroxide electrolyte. The anode includes a porous metal. The present invention also relates to a direct carbon fuel cell including the anode. The direct carbon fuel cell includes the anode, a cathode, and an electrolyte. According to the present invention, the use of the porous metal can maximize the surface area of the anode, fuel particles are infiltrated into the porous metal to increase the contact area with the anode and the fuel, and the surface of the porous metal is coated with an oxide to enhance the wettability of the anode. Therefore, the contact at the triple phase boundaries is maximized and the problem of discontinuous fuel supply can be solved, thereby greatly improving the efficiency of the fuel cell.
    Type: Application
    Filed: July 24, 2013
    Publication date: September 17, 2015
    Applicant: PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION
    Inventors: Dong-Geun Lee, Cheng-Guo Li
  • Patent number: 9065396
    Abstract: Provided is a method in which a Digital Pre-Distorter (DPD) performs digital pre-distortion on a received In-phase (I) signal, a received Quadrature-phase (Q) signal, a feedback I signal, and a feedback Q signal; a mixer mixes a signal output from the DPD with a frequency signal output from an oscillator; each of n phase shifters phase-shifts a signal output from the mixer according to a preset beamforming pattern; each of n Power Amplifiers (PAs) amplifies a signal output from an associated phase shifter according to a gain, the PAs connected to the associated phase shifter on a one-to-one basis; each of n envelope detectors detects an envelope signal from a signal output from an associated PA, the envelope detector connected to the associated PA on a one-to-one basis; and a control unit determines whether the n PAs operate normally, using the envelope signals output from the n envelope detectors.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: June 23, 2015
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology (KAIST)
    Inventors: Mi-Hyun Son, Yong-Hoon Kim, Byung-Tae Yoon, Jong-Wook Zeong, Dong-Geun Lee, Jae-Hun Lee, Song-Cheol Hong
  • Patent number: 9058017
    Abstract: An electrophotographic image forming apparatus and development cartridge are provided. The apparatus including a separating member mounted in a development cartridge. The separating member includes a development nip separating portion and a charging nip separating portion respectively separating a development nip and a charging nip when the development cartridge is mounted in a mounting portion of a photoreceptor cartridge mounted in a body.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: June 16, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-geun Lee, Sung-jin Kim, Yong-Il Moon, Ji-won Moon, Seung-chan Park, Hyung-seok Chang
  • Publication number: 20150147225
    Abstract: Provided is a beta-type titanium alloy having a low elastic modulus and a high strength. The titanium alloy includes 6 to 13 wt % of Mo, 0.1 to 3.9 wt % of Fe, a remaining amount of Ti, and inevitable impurity, and selectively includes 0.1 to 3.9 wt % of Al. The titanium alloy according to the present invention has a high tensile strength of greater than or equal to 1,300 MPa and a low elastic modulus of less than or equal to 95 GPa at low cost.
    Type: Application
    Filed: August 30, 2012
    Publication date: May 28, 2015
    Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Dong Geun Lee, Yong Tai Lee
  • Patent number: 8998304
    Abstract: A cab rear mounting device includes: a pair of posts disposed at a predetermined interval in a width direction of a vehicle, and fixedly mounted to a vehicle body; strikers mounted to the pair of posts, respectively; a pair of locking devices mounted to the cab, and coupled to each striker to be locked, so as to fix the cab to the vehicle body, or separated from each striker to be unlocked, so as to release the cab from the vehicle body; and damper devices mounted to the posts, respectively, and configured to absorb vibration or shock, thereby promoting a decrease in the number of components, and weight and cost of the vehicle.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: April 7, 2015
    Assignee: Hyundai Motor Company
    Inventors: Seunghyun Oh, Byungbae Kim, Dong Geun Lee, Dae Su Kim
  • Patent number: 8984691
    Abstract: A laundry machine and a control method thereof are disclosed. The disclosed laundry machine includes a drum rotatably installed in a cabinet, a substance supply device for supplying moisture to the drum, a water supply device separably mounted to the cabinet, to supply water to the substance supply device, a sensor for sensing whether or not water is supplied to the water supply device, and a controller for controlling the substance supply device in accordance with a sensing signal from the sensor.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: March 24, 2015
    Assignee: LG Electronics Inc.
    Inventors: Sang Hun Bae, Dong Geun Lee, Yeon Sik Choi, Ju Han Yoon
  • Patent number: D754247
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: April 19, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-Hoon Lee, Ji-Won Moon, Ho-Jin Jang, Seung-Chan Park, Dong-Cheol Ahn, Yong-Il Moon, Dong-Geun Lee, Yong-Kwan Cho
  • Patent number: D754248
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: April 19, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ho-Jin Jang, Ji-Won Moon, Seung-Chan Park, Sang-Hoon Lee, Dong-Cheol Ahn, Yong-Il Moon, Dong-Geun Lee, Yong-Kwan Cho
  • Patent number: D755283
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: May 3, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-Hoon Lee, Ji-Won Moon, Ho-Jin Jang, Seung-Chan Park, Dong-Cheol Ahn, Yong-Il Moon, Dong-Geun Lee, Yong-Kwan Cho
  • Patent number: D755888
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: May 10, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-Hoon Lee, Ji-Won Moon, Ho-Jin Jang, Seung-Chan Park, Dong-Cheol Ahn, Yong-Il Moon, Dong-Geun Lee, Yong-Kwan Cho
  • Patent number: D765164
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: August 30, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-Chan Park, Sang-Hoon Lee, Ji-Won Moon, Dong-Cheol Ahn, Ho-Jin Jang, Yong-Il Moon, Dong-Geun Lee, Yong-Kwan Cho