Patents by Inventor Chul Yoo

Chul 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).

  • Patent number: 10042983
    Abstract: The present invention provides an apparatus for screening cancer, which reads low-mass ion mass spectrum for diagnosing cancer based on biostatistical analysis with respect to low-mass ions extracted from biological materials, and diagnoses cancer using the low-mass ion spectrum. An apparatus for cancer diagnosis, including a low-mass ion detecting unit which detects mass spectra of low-mass ions of biological materials; a cancer diagnosing unit which compares and analyzes patterns of mass spectra and diagnoses cancer; a display unit which displays cancer diagnosis information from the cancer diagnosing unit.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: August 7, 2018
    Assignee: NATIONAL CANCER CENTER
    Inventors: Byong Chul Yoo, Kyung Hee Kim, Dae Yong Kim, In Hoo Kim, Ji Won Park, Jae Hwan Oh, Jun Hwa Lee, Eun Sook Lee
  • Patent number: 9991281
    Abstract: A semiconductor device is provided as follows. A tunnel insulation layer is disposed on a substrate. The tunnel insulation layer includes a first silicon oxide layer, a second silicon oxide layer, and a silicon layer interposed between the first silicon oxide layer and the second silicon oxide layer. The silicon layer has a thickness smaller than a thickness of each of the first silicon oxide layer and the second silicon oxide layer. A gate pattern is disposed on the tunnel insulation layer.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: June 5, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ju-Mi Yun, Young-Jin Noh, Kwang-Min Park, Jae-Young Ahn, Guk-Hyon Yon, Dong-Chul Yoo, Joong-Yun Ra, Young-Seon Son, Jeon-Il Lee, Hun-Hyeong Lim
  • Patent number: 9885719
    Abstract: Provided are methods of treating a subject for of ovarian cancer, the method including using lysophosphatidylcholine (16:0) and homocysteic acid, which are low-mass ions present in biological samples, to diagnose whether treatment should be provided. The method enables ovarian cancer to be diagnosed in a cost-effective, rapid and accurate manner.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: February 6, 2018
    Assignee: Ewha University-Industry Collaboration Foundation
    Inventors: Seung Cheol Kim, Byong Chul Yoo, Kyung-Hee Kim, Yun Hwan Kim
  • Patent number: 9882018
    Abstract: A semiconductor device includes: a substrate including a channel region; a gate dielectric a tunneling layer, a charge storage layer, and a blocking layer sequentially disposed on the channel region; and a gate electrode disposed on the gate dielectric, wherein the tunneling layer has variations in nitrogen concentrations in a direction perpendicular to the channel region, and has a maximum nitrogen concentration in a position shifted from a center of the tunneling layer toward the charge storage layer.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: January 30, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Jin Noh, Jae Ho Choi, Bio Kim, Kwang Min Park, Jae Young Ahn, Dong Chul Yoo, Seung Hyun Lim, Jeon Il Lee
  • Patent number: 9860448
    Abstract: A method of stabilizing a video in an electronic device is disclosed. The method includes determining shaking compensation areas corresponding to a respective plurality of frames acquired through an image sensor in entire areas of the respective plurality of frames based on shaking information of the plurality of frames and information on the magnification, generating output frames corresponding to the respective plurality of frames by enlarging the shaking compensation areas at the magnification, and providing a video including the output frames.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: January 2, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyung-chul Yoo, Nak-hoon Kim, Duk-chan Seo
  • Publication number: 20170358596
    Abstract: A semiconductor device is provided as follows. A tunnel insulation layer is disposed on a substrate. The tunnel insulation layer includes a first silicon oxide layer, a second silicon oxide layer, and a silicon layer interposed between the first silicon oxide layer and the second silicon oxide layer. The silicon layer has a thickness smaller than a thickness of each of the first silicon oxide layer and the second silicon oxide layer. A gate pattern is disposed on the tunnel insulation layer.
    Type: Application
    Filed: August 8, 2017
    Publication date: December 14, 2017
    Inventors: JU-MI YUN, Young-Jin Noh, Kwang-Min Park, Jae-Young Ahn, Guk-Hyon Yon, Dong-Chul Yoo, Joong-Yun Ra, Young-Seon Son, Jeon-Il Lee, Hun-Hyeong Lim
  • Patent number: 9833487
    Abstract: In some embodiments, a composition for the treatment and inhibition or prevention of arthritic diseases includes an extract of mixed herbs, the mixed herbs including an active ingredient with Lonicera japonica THUNB and Anemarrhena asphodeloides BUNGE.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: December 5, 2017
    Assignee: University-Industry Cooperation Group of Kyung Hee University
    Inventors: Dong-Suk Park, Myung Chul Yoo, Do-Young Choi, Hyung In Yang, Yong-Hyeon Baek, Jeong-Eun Huh, Kyoung Soo Kim, Yong-Baik Cho, In Ho Jung, Jong Hyun Hur, Jae Dong Lee
  • Publication number: 20170334969
    Abstract: Disclosed is a method of producing high-concentration collagen for use as a medical material, including: washing tissue of a mammal; subjecting the washed tissue to crushing and immersion in ethyl alcohol; subjecting the tissue to enzymatic treatment with stirring in purified water containing phosphoric acid and pepsin; adding sodium chloride to the collagen subjected to enzymatic treatment, performing stirring, and aggregating collagen; dissolving the aggregated collagen in purified water to give a collagen solution, which is then filtered using a filter and concentrated by removing the pepsin, low-molecular-weight material, and sodium chloride from the collagen solution using a tangential flow filtration device; subjecting the concentrated collagen to sterile filtration, aggregating the collagen using a pH solution in a neutralization tank, and concentrating the collagen by removing a non-aggregated solution; and concentrating the concentrated collagen using a centrifuge and stirring the concentrated collag
    Type: Application
    Filed: December 11, 2014
    Publication date: November 23, 2017
    Inventors: Cheong Ho CHANG, Hyeong Woo JEONG, Ji Chul YOO, Se Ken YEO, Dong Sam SUH
  • Publication number: 20170304491
    Abstract: Disclosed are a matrix for restoring soft tissue and a method of producing the same, the method including: forming a sheet-type absorption layer (11) on one side of a double layer using biocompatible neutral collagen; forming a film-type support layer (12) on the remaining surface of the double layer by mixing collagen with a water-soluble polymer and a natural material; and forming a double layer-structured matrix (10) for restoring soft tissue by attaching the absorption layer (11) and the support layer (12) so as to treat damage to soft tissue of a mammal other than a human or restore damaged soft tissue. This invention pertains to the treatment of damage to soft tissue such as tendons, ligaments, and rotator cuffs or the restoration of damaged soft tissue, whereby the quality and reliability of products can be remarkably improved, thus satisfying various needs of consumers, who are the users thereof, and exhibiting a good effect.
    Type: Application
    Filed: September 29, 2014
    Publication date: October 26, 2017
    Inventors: Ki Soo KIM, Ji Chul YOO, Se Ken YEO, Sang Bum CHOI, Chang Kwon KO, Dong Sam SUH, Cheong Ho CHANG
  • Patent number: 9754959
    Abstract: A semiconductor device is provided as follows. A tunnel insulation layer is disposed on a substrate. The tunnel insulation layer includes a first silicon oxide layer, a second silicon oxide layer, and a silicon layer interposed between the first silicon oxide layer and the second silicon oxide layer. The silicon layer has a thickness smaller than a thickness of each of the first silicon oxide layer and the second silicon oxide layer. A gate pattern is disposed on the tunnel insulation layer.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: September 5, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ju-Mi Yun, Young-Jin Noh, Kwang-Min Park, Jae-Young Ahn, Guk-Hyon Yon, Dong-Chul Yoo, Joong-Yun Ra, Young-Seon Son, Jeon-Il Lee, Hun-Hyeong Lim
  • Publication number: 20170180589
    Abstract: A photographing apparatus is provided, including a photographing device comprising imaging circuitry configured to generate an image signal by photoelectric conversion of incident light, a processor comprising processing circuitry configured to determine a sampling interval of time lapse photographing over time based on a reference value acquired in real time while the time lapse photographing is performed, to sample a plurality of input frames generated from the image signal at the sampling interval while the time lapse photographing is performed, to stabilize a plurality of frames selected by sampling the plurality of input frames using a window determined based on the sampling interval, and to compress the plurality of selected frames at an output frame rate to generate a time lapse image file, and a storage configured to store the time lapse image file.
    Type: Application
    Filed: November 11, 2016
    Publication date: June 22, 2017
    Inventors: Kai GUO, Nak-hoon KIM, Sahil ARORA, Duck-chan SEO, Hyung-chul YOO
  • Patent number: 9640375
    Abstract: The present invention provides a method for determining low mass ions for diagnosing colorectal cancer by using a MALDI-TOF mass spectrometer to biostatistically analyze low mass ions, which are extracted from a biological sample, and a method for providing information for diagnosing colorectal cancer using same. The present inventions can provide a diagnostic method, which requires low cost and a short time for analysis, can analyze large areas, and which can provide superior and credible discriminations.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: May 2, 2017
    Assignee: National Cancer Center
    Inventors: Byong Chul Yoo, In Hoo Kim, Kyung Hee Kim, Jun Hwa Lee, Kwang Gi Kim, Hee Jin Chang, Dae Yong Kim, Jae Hwan Oh, Byung Chang Kim, Ji Won Park, Sun Young Kim
  • Publication number: 20170034410
    Abstract: A method of stabilizing a video in an electronic device is disclosed. The method includes determining shaking compensation areas corresponding to a respective plurality of frames acquired through an image sensor in entire areas of the respective plurality of frames based on shaking information of the plurality of frames and information on the magnification, generating output frames corresponding to the respective plurality of frames by enlarging the shaking compensation areas at the magnification, and providing a video including the output frames.
    Type: Application
    Filed: November 17, 2015
    Publication date: February 2, 2017
    Inventors: Hyung-chul YOO, Nak-hoon KIM, Duk-chan SEO
  • Patent number: 9456972
    Abstract: Provided is niacin-peptide which has skin whitening activity. The peptide of the present invention has skin whitening activity by inhibiting melanogenesis, that is, by inhibiting the expression of a gene related to melanogenesis (for example, TRP-1, TRP2, or MIFT). The peptide of the present invention has high stability and skin permeability. Also provided is a cosmetic composition for skin whitening which contains the niacin-peptide.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: October 4, 2016
    Inventors: Sung-Ae Choi, Hyuk-Kwang Jeong, Young-Mi Byoun, Jun-Seob Shin, Seo Joon Yoo, Sang-Chul Yoo
  • Publication number: 20160279291
    Abstract: Disclosed are a biomaterial imparted with enhanced rubber properties through natural cross-linking between collagen and hyaluronic acid, a method of preparing the same, and a method of using the same, wherein the rubber-type biomaterial is prepared from collagen and hyaluronic acid at a ratio of 2:1 to 7:1 through natural cross-linking. Specifically, a novel material that exhibits rubber properties can be prepared from collagen and hyaluronic acid at an optimal mixing ratio taking into consideration the molecular structural properties thereof under natural cross-linking conditions, rather than chemical or physical cross-linkage, thereby remarkably improving the quality and reliability of products, ultimately fulfilling various needs of consumers to thus increase marketability.
    Type: Application
    Filed: November 15, 2013
    Publication date: September 29, 2016
    Inventors: Ji Chul YOO, Se Ken YEO, Myoung Sung LEE, Jun Keun LEE, Chang Kwon KO, Dong Sam SUH, Cheong Ho CHANG
  • Publication number: 20160266128
    Abstract: The present invention relates to diagnosis of ovarian cancer using lysophosphatidylcholine (16:0) and homocysteic acid, which are low-mass ions present in biological samples. The use of the present invention enables ovarian cancer to be diagnosed in a cost-effective, rapid and accurate manner. Thus, it is expected that the present invention will be effectively used to diagnose and treat ovarian cancer.
    Type: Application
    Filed: August 21, 2014
    Publication date: September 15, 2016
    Applicant: Ewha University-Industry Collaboration Foundation
    Inventors: Seung Cheol KIM, Byong Chul YOO, Kyung-Hee KIM, Yun Hwan KIM
  • Patent number: 9431414
    Abstract: Nonvolatile memory devices include at least four cylindrical-shaped channel regions, which extend vertically from portions of a substrate located at respective vertices of at least one rhomboid when viewed in a vertical direction relative to a surface of the substrate. A charge storage layer (e.g., ONO layer) is provided on an outer sidewall of each of the cylindrical-shaped channel regions. In addition, to achieve a high degree of integration, a plurality of vertically-stacked gate electrodes are provided, which extend adjacent each of the cylindrical-shaped channel regions.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: August 30, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byong-Hyun Jang, Dong-Chul Yoo, Ki-Hyun Hwang, Phil-Ouk Nam, Jae-Young Ahn
  • Patent number: 9431416
    Abstract: A vertical-type nonvolatile memory device includes a first vertical channel structure, and first and second stacked structure. The first vertical channel structure extends vertically on a substrate. The first stacked structure includes gate electrodes and first interlayer insulating layers. The gate layers and the first interlayer insulating layers are alternately and vertically stacked on each other. The first stacked structure is disposed on a first sidewall of the first vertical channel structure. The second stacked structure includes first sacrificial layers and second interlayer insulating layers. The first sacrificial layers and the second interlayer insulating layers are alternately and vertically stacked on each other. The second stacked structure is disposed on a second sidewall of the first vertical channel structure. The first sacrificial layers is formed of a polysilicon layer.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: August 30, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Phil-ouk Nam, Jun-kyu Yang, Hun-hyeong Lim, Ki-hyun Hwang, Jae-young Ahn, Dong-chul Yoo
  • Publication number: 20160172372
    Abstract: A semiconductor device is provided as follows. A tunnel insulation layer is disposed on a substrate. The tunnel insulation layer includes a first silicon oxide layer, a second silicon oxide layer, and a silicon layer interposed between the first silicon oxide layer and the second silicon oxide layer. The silicon layer has a thickness smaller than a thickness of each of the first silicon oxide layer and the second silicon oxide layer. A gate pattern is disposed on the tunnel insulation layer.
    Type: Application
    Filed: December 9, 2015
    Publication date: June 16, 2016
    Inventors: JU-MI YUN, YOUNG-JIN NOH, KWANG-MIN PARK, JAE-YOUNG AHN, GUK-HYON YON, DONG-CHUL YOO, JOONG-YUN RA, YOUNG-SEON SON, JEON-IL LEE, HUN-HYEONG LIM
  • Patent number: 9324730
    Abstract: A vertical memory device including a substrate including first regions and a second region; a plurality of channels in the first regions, the plurality of channels extending in a first direction substantially perpendicular to a top surface of the substrate; a charge storage structure on a sidewall of each channel in a second direction substantially parallel to the top surface of the substrate; a plurality of gate electrodes in the first regions, the plurality of gate electrodes arranged on a sidewall of the charge storage structure and spaced apart from each other in the first direction; and a plurality of supporters in the second region, the plurality of supporters spaced apart from each other in a third direction substantially perpendicular to the first direction and the second direction, the plurality of supporters contacting a sidewall of at least one gate electrode.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: April 26, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Phil-Ouk Nam, Dong-Chul Yoo, Bi-O Kim, Jae-Young Ahn, Byong-Hyun Jang, Ki-Hyun Hwang