Patents by Inventor Sang A. An

Sang A. An 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: 7988431
    Abstract: A variable capacity rotary compressor is provided, in which a vane may be restricted by a pressure difference generated between both side surfaces of the vane when the compressor performs in a saving driving mode. The vane may be restricted quickly and stably by rapidly decreasing a pressure of a vane chamber by leaking a discharge pressure of the vane chamber to an inlet via a low pressure passage and thereby increasing a pressurizing force applied to a side surface of the vane relatively greater than a supporting force applied to a rear surface thereof. In this way, the vane may be prevented from being vibrated due to a weak restriction force of the vane when a power driving mode of the compressor is switched into the saving driving mode, which prevents noise from increasing due to design conditions, thereby enhancing a comfort feeling of a user.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: August 2, 2011
    Assignee: LG Electronics Inc.
    Inventors: Sang Myung Byun, Jeong Min Han, Jeong Hun Kim
  • Patent number: 7991250
    Abstract: A printed circuit board including a first optical waveguide having a circuit pattern and a pad buried in one side thereof, a first insulation layer stacked over one side of the first optical waveguide, a first insulating material stacked over the first insulation layer, a first electrical wiring layer stacked over the first insulating material, a second optical waveguide having a circuit pattern and a pad buried in one side thereof, a second insulation layer stacked over one side of the second optical waveguide, a second insulating material stacked over the second insulation layer, a second electrical wiring layer stacked over the second insulating material, an intermediate layer interposed between the other side of the first optical waveguide and the other side of the second optical waveguide such that the first optical waveguide and the second optical waveguide are attached, and a via penetrating the first optical waveguide and the second optical waveguide.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: August 2, 2011
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Sang-Hoon Kim, Je-Gwang Yoo, Joon-Sung Kim, Jae-Hyun Jung, Han-Seo Cho
  • Patent number: 7991308
    Abstract: Disclosed are a waste toner amount detecting apparatus and method which can detect whether a waste toner bottle is full of a waste toner using a change in a current of a motor which drives an auger, and an image forming apparatus employing the same. The waste toner amount detecting apparatus is in an image forming apparatus which includes a motor current detector to detect a drive current of a motor which rotates an auger for leveling the waste toner contained in the waste toner bottle; and a controller which includes a determining unit to determine whether the waste toner bottle is full of the waste toner, using a difference between a first current value corresponding to a minimum drive current of the motor and a second current value corresponding to a current drive current of the motor.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: August 2, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Han-sang Oh
  • Patent number: 7989820
    Abstract: Provided are a semiconductor light emitting device and a method of fabricating the same. The semiconductor light emitting device comprises: a light emitting structure comprising a first conductive type semiconductor layer, an active layer under the first conductive type semiconductor layer, and a second conductive type semiconductor layer under the active layer; a reflective electrode layer under the light emitting structure, and an outer protection layer at an outer circumference of the reflective electrode layer.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: August 2, 2011
    Assignee: LG Innotek Co., Ltd.
    Inventor: Sang Youl Lee
  • Patent number: 7990490
    Abstract: An optical sheet includes a base layer, a light-condensing layer and a plurality of light-reflecting portions. The base layer includes a first surface and a second surface. The light-condensing layer includes a plurality of light-condensing portions with a first pitch. The light-condensing portions are formed along a first direction of the second surface. The light-reflecting portions are formed in the first surface to be spaced apart from each other along the -first direction in correspondence with a plurality of grooves, each groove formed between two light-condensing portions. An interval distance between a center of the light-condensing portion and an edge of the light-reflecting portion increases when moving toward the edge of the first surface from a center of the first surface along the first direction. Therefore, the number of the optical sheets used for the display device may be reduced.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: August 2, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Hoon Lee, Byung-Yun Joo, Min-Young Song, Jin-Sung Choi, Seung-Hwan Chung, Dong-Kwan Kim
  • Patent number: 7990779
    Abstract: A method of operating a semiconductor device including a memory cell of a 1-T DRAM is provided in which a gate voltage level in a hold mode is adjusted to adjust a data sensing margin of the semiconductor device.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: August 2, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-moo Choi, Won-joo Kim, Tae-hee Lee
  • Patent number: 7991062
    Abstract: A method of allocating sub-channel signal interleaving patterns to BSs forming a wireless communication system that divides a frequency band into a plurality of sub-carriers and including a plurality of sub-channels, which are a set of predetermined adjacent sub-carriers. The method includes: creating a basic orthogonal sequence having a length identical to a number of the sub-carriers forming the sub-channel; creating a plurality of sequences having a same length as the basic orthogonal sequence by cyclic-shifting the basic orthogonal sequence a predetermined number of times or performing a modulo operation based on a number of the sub-carriers forming the sub-channel, after adding a predetermined offset to the cyclic-shifted basic orthogonal sequence; selecting a predetermined number of sequences corresponding to a number of the BSs from among the plurality of sequences; and allocating the selected sequences as the sub-channel signal interleaving patterns for the BSs.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: August 2, 2011
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jae-Hee Cho, Jae-Ho Jeon, Soon-Young Yoon, Sang-Hoon Sung, Ji-Ho Jang, In-Seok Hwang, Hoon Huh, Jeong-Heon Kim, Soung-Joo Maeng
  • Patent number: 7988509
    Abstract: A flow control mechanism is provided for controlling a stern flow field disturbed by cooling water discharged from the cooling water outlet of a ship. The flow control mechanism is located within a distance, which corresponds to three times the diameter of the cooling water outlet, from the cooling water outlet, is installed at an angle from 16° to 30° with respect to the horizontal plane of a hull, and has a vertical height, which is within a range from 0.2 times to 0.6 times the diameter of the cooling water outlet in a vertical direction of the hull, and a horizontal width, which is within a range from 0.5 times to 1.3 times the diameter of the cooling water outlet in a horizontal direction of the hull. Thereby, the flow control mechanism restores the distribution of wake flow that encounters a propeller so that the distribution of the wake flow is symmetrical around the central axis of the hull, and reduces the generation of a cavity.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: August 2, 2011
    Assignee: Samsung Heavy Ind. Co., Ltd.
    Inventors: Soon-ho Choi, Sang-kyu Choi, Sung-mok Ahn, Seung-myun Hwangbo
  • Patent number: 7987616
    Abstract: The present invention relates to a laundry machine. The laundry machine includes a drum rotatably mounted in a cabinet, a hot air heater to heat air and supply hot air into the drum, a steam generator to supply steam into the drum, a water supply source detachably mounted in the cabinet to supply water into the steam generator, and a water leakage preventing unit to prevent water leakage when the water supply source is detachably mounted.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: August 2, 2011
    Assignee: LG Electronics Inc.
    Inventors: Sang Hun Bae, Chang Woo Son, Chul Jin Choi, Dong Hyun Kim, Young Bok Son, Heung Jae Kim
  • Patent number: 7990677
    Abstract: A multilayer chip capacitor includes: a capacitor body having first and second side surfaces and a bottom surface; a plurality of first and second internal electrodes in the capacitor body; first and second external electrodes having a first polarity and formed on the first and second side surfaces, respectively, to cover a respective lower edge of the side surfaces and to partially extend to the bottom surface; and a third external electrode having a second polarity and formed on the bottom surface. The internal electrodes are disposed in perpendicular to the bottom surface. Each of the first internal electrodes has a first lead drawn to the first side and bottom surfaces and a second lead drawn to the second side and bottom surfaces. Each of the second internal electrodes has a third lead drawn to the bottom surface.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: August 2, 2011
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Byoung Hwa Lee, Sung Kwon Wi, Hae Suk Chung, Dong Seok Park, Sang Soo Park, Min Cheol Park
  • Patent number: 7988873
    Abstract: A method of forming a mask pattern for fabricating a semiconductor device. A first region and a second region, having an intersecting third region, are defined in the semiconductor substrate. An inorganic mask layer is etched in the first region to a predetermined thickness, and etched in the second region to another predetermined thickness. While the inorganic mask layer is etched in the first and second region, an organic mask layer is exposed in the third region. The organic mask layer exposed in the third region is removed to form a mask pattern. Consequently, double exposure is performed using the organic mask layer and the inorganic mask layer, so that a fine feature size that closely follows a desired layout can be formed, damage to the organic mask layer by ashing is prevented, and adhesiveness between the organic mask layer and the inorganic mask layer can be improved.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: August 2, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyong-Soo Kim, Sang-Hyeop Lee
  • Patent number: 7990794
    Abstract: A method of operating a semiconductor device is provided including applying a constant source voltage to a source line.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: August 2, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-moo Choi, Won-joo Kim, Tae-hee Lee
  • Patent number: 7988812
    Abstract: A substrate treatment apparatus is provided. The substrate treatment apparatus includes a process room, a load port in which a container receiving wafers is disposed, and a wafer transfer module disposed between the load port and the process room to transfer the wafers between the load port and the process room. The wafer transfer module includes a first barrier, a second barrier extending from a first end of the first barrier or from a portion near the first end of the first barrier at a predetermined inclined angle with respect to the first barrier, and a third barrier extending from a second end of the first barrier or from a portion near the second end of the first barrier at a predetermined inclined angle. The load portion is provided along the first barrier. The process room includes a plurality of chambers arranged along the second and third barriers.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: August 2, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ki-Sang Kim, Kyue-Sang Choi, Byong-Kyu Seo, Soon-Chon Park
  • Patent number: 7989292
    Abstract: In a method of fabricating a semiconductor device on a substrate which includes a plurality of pillar patterns, an impurity region between adjacent pillar patterns, a gate electrode on each pillar pattern, a first capping layer covering the gate electrode, and a separation layer covering the first capping layer between the gate electrodes of adjacent pillar patterns, the first capping layer is removed except for a portion contacting the separation layer, a sacrificial layer is formed to cover the gate electrode, a second capping layer is formed on sidewalls of each pillar pattern, the sacrificial layer is removed and a word line connecting the gate electrodes of the adjacent pillar patterns is formed. In the manufactured device, the first capping layer isolates the impurity region from the word line and the second capping region prevents the sidewalls of the respective pillar pattern from being exposed.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: August 2, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventors: Sang-Hoon Cho, Yun-Seok Cho, Myung-Ok Kim, Sang-Hoon Park, Young-Kyun Jung
  • Patent number: 7991442
    Abstract: Disclosed herein is a multiple opening and closing type mobile communication terminal that is capable of operating in multiple opening and closing modes, i.e., in a folder-type opening and closing mode and in a slide-type opening and closing mode, thereby solving restrictions of installation spaces where an image display unit and a data input unit of the mobile communication terminal are installed, and including a larger-sized image display unit and a qwerty type keyboard, which is provided for personal computers, thereby improving the convenience of image display and information input. The mobile communication terminal includes a body part having a plurality of chips, a folder part hingedly coupled to the body part, and a slide part coupled to the folder part such that the slide part is moved relative to the folder part in a sliding manner, and therefore, the multiple opening and closing type mobile communication terminal is opened or closed.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: August 2, 2011
    Assignee: LG Electronics Inc.
    Inventor: Sang-Jo Kim
  • Patent number: 7991112
    Abstract: The present invention discloses a detecting method of an article detection apparatus composed of an individual DR subsystem and an individual CT subsystem, the method comprising: obtaining a first projection data on ray attenuation coefficient by using the DR subsystem to project an A-layer of an article at a first projection angle, and obtaining a second projection data on ray attenuation coefficient by using the CT subsystem to project an A-layer of the article at a second projection angle different from the first projection angle; and judging whether an A-layer of the detected article contains a dangerous article based on the first projection data and the second projection data so as to obtain a first judgment on an A-layer of the detected article.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: August 2, 2011
    Assignees: Nuctech Company Limited, Tsinghua University
    Inventors: Zhiqiang Chen, Yuanjing Li, Yulan Li, Li Zhang, Wanlong Wu, Hua Peng, Yinong Liu, Zirao Zhao, Xuewu Wang, Shangmin Sun, Bin Sang, Hailin Wang, Quanwei Song, Jinyu Zhang
  • Patent number: 7989571
    Abstract: Disclosed is a method for producing a norbornene monomer composition, a norbornene polymer produced using the norbornene monomer composition, an optical film including the norbornene polymer, and a method for producing the norbornene polymer. The method includes reacting a reaction solution that contains cyclopentadiene, dicyclopentadiene, or a mixture of cyclopentadiene and dicyclopentadiene, an acetate compound, and a solvent so that a content of an exo isomer is 50 mol % or more. Variables such as a reaction temperature, a reaction time, a molar ratio between reactants, and addition of a solvent are controlled so that the exo isomer is contained in content of 50 mol % or more. Accordingly, it is possible to industrially produce an acetate norbornene addition polymer by using the acetate norbornene monomer composition containing the exo isomer in content of 50 mol % or more.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: August 2, 2011
    Assignee: LG Chem, Ltd.
    Inventors: Sung-Ho Chun, Won-Kook Kim, Sung-Cheol Yoon, Tae-Sun Lim, Heon Kim, Kyoung-Hoon Kim, Jung-Min Lee, Kyung-Lim Paik, Sang-Doo Ahn
  • Patent number: 7990129
    Abstract: A reference voltage generating circuit provides a stabilized reference voltage and includes; a clock generator providing a clock signal, a high voltage generator providing a pumping voltage in response to the clock signal, a ripple eradicator providing a static voltage by removing voltage ripple from the pumping voltage, and a reference voltage generator providing the reference voltage.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: August 2, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joon Young Kwak, Yoon-Hee Choi, Jin-Yub Lee, You-Sang Lee, Bo-Geun Kim
  • Patent number: 7989861
    Abstract: An image sensor includes a substrate, an anti-reflection board and a light shielding film. The substrate includes first pixels to receive a light, and second pixels to provide a black level compensation. The first pixels are formed in an active region and the second pixels are formed in a first region spaced apart from the active region in a row direction. The anti-reflection board is formed in a second region above the substrate, and the second region is between the active region and the first region. The light shielding film is formed above the anti-reflection board, and the light shielding film covers an optical black region including the first and second regions. Therefore, the image sensor may be used in a CCD type image sensor and a CMOS type image sensor to provide a stabilized black level, thereby improving a quality of a displayed image.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: August 2, 2011
    Assignee: SAMSUNG Electronics Co., Ltd.
    Inventors: Yi-Tae Kim, Sang-Il Jung, Yun-Ho Jang, Kyung-Ho Lee, Sae-Young Kim
  • Patent number: 7989814
    Abstract: A thin film transistor array panel including a substrate; a display area signal line; a display area thin film transistor; a peripheral area signal line; a black matrix disposed on the display area signal line, the display area thin film transistor, and the peripheral area signal line, the black matrix including a first and a second contact holes exposing the peripheral area signal line; a protrusion member disposed on the peripheral area signal line, the protrusion member overlapping the peripheral area signal line; a transparent connector disposed on the black matrix and within the peripheral area, wherein the transparent connector contacts the peripheral area signal line through at least one of the first and the second contact holes and includes a protrusion within at least one of the first and the second contact holes which corresponds to the protrusion member; and a pixel electrode.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: August 2, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Je Cho, Byung-Duk Yang, Eun-Guk Lee, Sang-Yong No, Hyang-Shik Kong, Sung-Hoon Kim, Su-Hyoung Kang, Sung-Jae Moon, Sung-Wook Kang, Yeong-Beom Lee