Patents by Inventor Tae Ahn

Tae Ahn 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: 10047223
    Abstract: The present invention relates to a polycarbonate-based resin composition and a molded article thereof, and more specifically, to a polycarbonate-based resin composition exhibiting high fluidity and excellent chemical resistance and impact resistance, and a molded article formed therefrom.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: August 14, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Ryul Lee, Su Kyoung Lee, Min Ji Kim, Jong Hyun Lee, Sung Tae Ahn
  • Publication number: 20180226129
    Abstract: In a method of programming a semiconductor memory device, during a standby period, a standby voltage is applied to word lines coupled to a plurality of memory cells included in a selected memory cell string, and, during a first program period, a first pre-bias voltage is applied to a word line coupled to at least one of programmed memory cells of the selected memory cell string. The first pre-bias voltage is greater than the standby voltage.
    Type: Application
    Filed: April 9, 2018
    Publication date: August 9, 2018
    Applicant: SK hynix Inc.
    Inventors: Eun Mee KWON, Ji Seon KIM, Sang Tae AHN
  • Patent number: 10022082
    Abstract: An apparatus and a method is provided for detecting biometric signals of a driver and classifying the driver into a normal state or a fatigued state based on the biometric signals. An apparatus may include: a biometric signal measuring part configured to measure the biometric signals including a blood flow rate of a brain of the driver using an electro-encephalography (EEG), an electro-cardiography (ECG), and a functional near-infrared spectroscopy (fNIRS) of the driver; a biometric signal integral part configured to integrate the measured biometric signals, to extract characteristics of the respective biometric signals from the measured biometric signals and to then integrate the extracted characteristics, or to classify the extracted characteristics of the biometric signals and to then integrate the classified characteristics; and a driver state detecting part configured to detect the state of the driver based on the integrated biometric signals.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: July 17, 2018
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Gwangju Institute of Science and Technology
    Inventors: Nam Woong Hur, Seul Ki Jeon, Hyun Sang Kim, Eung Hwan Kim, Sang Tae Ahn, Hyo Jung Jang, Sung Chan Jun
  • Patent number: 9966144
    Abstract: In a method of programming a semiconductor memory device, during a standby period, a standby voltage is applied to word lines coupled to a plurality of memory cells included in a selected memory cell string, and, during a first program period, a first pre-bias voltage is applied to a word line coupled to at least one of programmed memory cells of the selected memory cell string. The first pre-bias voltage is greater than the standby voltage.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: May 8, 2018
    Assignee: SK hynix Inc.
    Inventors: Eun Mee Kwon, Ji Seon Kim, Sang Tae Ahn
  • Publication number: 20180005696
    Abstract: In a method of programming a semiconductor memory device, during a standby period, a standby voltage is applied to word lines coupled to a plurality of memory cells included in a selected memory cell string, and, during a first program period, a first pre-bias voltage is applied to a word line coupled to at least one of programmed memory cells of the selected memory cell string. The first pre-bias voltage is greater than the standby voltage.
    Type: Application
    Filed: March 13, 2017
    Publication date: January 4, 2018
    Applicant: SK hynix Inc.
    Inventors: Eun Mee KWON, Ji Seon KIM, Sang Tae AHN
  • Publication number: 20170367635
    Abstract: An apparatus and a method is provided for detecting biometric signals of a driver and classifying the driver into a normal state or a fatigued state based on the biometric signals. An apparatus may include: a biometric signal measuring part configured to measure the biometric signals including a blood flow rate of a brain of the driver using an electro-encephalography (EEG), an electro-cardiography (ECG), and a functional near-infrared spectroscopy (fNIRS) of the driver; a biometric signal integral part configured to integrate the measured biometric signals, to extract characteristics of the respective biometric signals from the measured biometric signals and to then integrate the extracted characteristics, or to classify the extracted characteristics of the biometric signals and to then integrate the classified characteristics; and a driver state detecting part configured to detect the state of the driver based on the integrated biometric signals.
    Type: Application
    Filed: November 18, 2016
    Publication date: December 28, 2017
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Nam Woong HUR, Seul Ki JEON, Hyun Sang KIM, Eung Hwan KIM, Sang Tae AHN, Hyo Jung JANG, Sung Chan JUN
  • Publication number: 20170321014
    Abstract: The present invention relates to a polycarbonate-based resin composition and a molded article thereof, and more specifically, to a polycarbonate-based resin composition exhibiting improved impact strength (impact resistance) and chemical resistance while including a glass fiber in a relatively small content, and a molded article formed therefrom.
    Type: Application
    Filed: December 3, 2015
    Publication date: November 9, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Su Kyoung LEE, Min Ji KIM, Jong Hyun LEE, Ryul LEE, Sung Tae AHN
  • Publication number: 20170313870
    Abstract: The present disclosure relates to a polycarbonate-ABS based alloy resin composition having superior plating adhesion and a molded article manufactured therefrom. In accordance with the present disclosure, a polycarbonate-ABS based alloy resin composition having superior plating adhesion as well as superior mechanical properties, and a molded article including the polycarbonate-ABS based alloy resin composition.
    Type: Application
    Filed: September 26, 2016
    Publication date: November 2, 2017
    Inventors: Jae Hwan KIM, Myeung II KIM, Seok Jae YOO, Sung Ho LEE, Sung Tae AHN, Min Ho JEONG
  • Publication number: 20170306146
    Abstract: The present invention relates to a polycarbonate-based resin composition and a molded article thereof, and more specifically, to a polycarbonate-based resin composition exhibiting high fluidity and excellent chemical resistance and impact resistance, and a molded article formed therefrom.
    Type: Application
    Filed: December 3, 2015
    Publication date: October 26, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Ryul LEE, Su Kyoung LEE, Min Ji KIM, Jong Hyun LEE, Sung Tae AHN
  • Publication number: 20170298222
    Abstract: The present invention relates to a polycarbonate-based resin composition and a molded article thereof, and more particularly, to a polycarbonate-based resin composition exhibiting low deformation characteristic, excellent impact strength, excellent appearance surface characteristic, and excellent flame retardancy, and a molded article formed therefrom.
    Type: Application
    Filed: December 3, 2015
    Publication date: October 19, 2017
    Inventors: Jong Hyun LEE, Su Kyuong LEE, Min Ji KIM, Ryul LEE, Sung Tae AHN
  • Patent number: 9790618
    Abstract: The present invention relates to a method and apparatus for growing sapphire single crystals, and more particularly to a method and apparatus for growing sapphire single crystals in which a high quality, long single crystal can be obtained within a short period of time upon the use of a long rectangular crucible and a long seed crystal extending in a c-axial direction. Use of the method and apparatus for growing sapphire single crystals according to the present invention can uniformly maintain the horizontal temperature at the inside of the crucible despite the use of a rectangular crucible, thereby obtaining a high-quality single crystal as well decreasing the possibility of a failure in the growth of the single crystal.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: October 17, 2017
    Assignee: CRISTECH CO., LTD.
    Inventor: Jun Tae Ahn
  • Patent number: 9768471
    Abstract: A rechargeable lithium battery includes a positive electrode including a positive active material, a negative electrode and an electrolyte including a lithium salt, an organic solvent and an additive. The positive active material includes a compound represented by Chemical Formula 1, and the additive includes about 0.5 to about 2 parts by weight of lithium difluorophosphate (LiPO2F2) and about 0.5 to about 3 parts by weight of vinylene carbonate, based on 100 parts by weight of the organic solvent. LiaNixCoyMnzO2??Chemical Formula 1.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: September 19, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: In-Hyun Lee, Su-Jin Yoon, Tae-Ahn Kim, Seung-Ju Oh
  • Publication number: 20170204265
    Abstract: Disclosed are a polycarbonate resin composition including 15 to 93% by weight of a polycarbonate-polyorganosiloxane copolymer; 0 to 70% by weight of a bisphenol-derived polycarbonate resin; 5 to 30% by weight of glass fiber surface-treated with epoxysilane; d) 1 to 5% by weight of a core-shell impact modifier; and e) 0.05 to 3% by weight of an epoxysilane additive and a polycarbonate resin composition, and a molded article manufactured therefrom. In accordance with the present disclosure, a polycarbonate resin composition and a molded article manufactured therefrom, and more particularly to a polycarbonate resin composition suitable for satisfying demand for larger area and slimmer electronic products, etc. while providing superior rigidity, chemical resistance, and impact resistance and aesthetic appearance, and a molded article manufactured therefrom are provided.
    Type: Application
    Filed: January 11, 2017
    Publication date: July 20, 2017
    Inventors: Su Kyoung LEE, Min Ji KIM, Jong Hyun LEE, Ryul LEE, Sung Tae AHN
  • Publication number: 20170195074
    Abstract: A method of transmitting a broadcast signal includes encoding mobile data for FEC (Forward Error Correction); encoding signaling information for signaling the mobile data; allocating the encoded mobile data and signaling data into a transmission frame; and transmitting the broadcast signal including the transmission frame, wherein the transmission frame includes a service signaling table having service_type information identifying a type of a service of the mobile data and hidden information indicating whether the service of the mobile data is hidden or not.
    Type: Application
    Filed: January 17, 2017
    Publication date: July 6, 2017
    Applicant: LG ELECTRONICS INC.
    Inventors: Chul Soo LEE, In Hwan CHOI, Ho Taek HONG, Kook Yeon KWAK, Hyoung Gon LEE, Jae Hyung SONG, Jin Pil KIM, Won Gyu SONG, Joon Hui LEE, Jin Woo KIM, Byoung Gill KIM, Jong Yeul Suh, Kyu Tae AHN
  • Patent number: 9695836
    Abstract: Provided is a fly wheel, including: a fly wheel body provided with a receiving part in which air is filled and mounted on driving shaft; a blade radially coupled to the fly wheel body, including a ventilation passage formed therein to be communicated with the receiving part and a puncturing part formed on an outer race thereof to be communicated with the ventilation passage, and generating thrust by discharging the air filled in the receiving part to the puncturing part at the time of rotating the driving shaft; and a check valve installed on the fly wheel body and being opened and closed by a pressure difference between the receiving part and the outside.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: July 4, 2017
    Inventors: Sang Tae Ahn, Chun Young Ahn
  • Publication number: 20170174884
    Abstract: Disclosed is a modified poly(arylene ether) resin composition and more specifically, are a modified poly(arylene ether) resin composition including a poly(arylene ether) resin, a poly(arylene ether) resin modified with unsaturated carboxylic acid or an anhydride thereof, a polyamide resin, a polyolefin resin, and an encapsulating agent, wherein the polyolefin resin is encapsulated by the encapsulating agent with the poly(arylene ether) resin and the poly(arylene ether) resin modified with unsaturated carboxylic acid or an anhydride thereof, and a molded article produced therefrom. The present invention has an effect of providing a modified poly(arylene ether) resin composition which has less change in physical properties caused by moisture, and has low specific gravity and superior impact strength, weatherability and balance in physical properties.
    Type: Application
    Filed: February 17, 2016
    Publication date: June 22, 2017
    Applicant: LG CHEM LTD.
    Inventors: Nam Jib PARK, Sang Ho LEE, Se Yeong JU, Sung Ho LEE, Sung Tae AHN
  • Publication number: 20170111999
    Abstract: This invention discloses a fabricating method of the Printed Circuit Board, comprising the steps of (a) laminating an RCF and a copper layer on the internal core via vacuum press; (b) performing a first curing process; (c) making via-holes and filling out the via-holes and coating the surface of the copper layer with copper plating; (d) preparing a mask layer having a window which exposes the surface of the RCF region for the definition of the cavity; (e) etching the RCF with the surface exposed either via the pumice process or via the wet blast process; and (f) removing the mask layer and performing a second curing process.
    Type: Application
    Filed: June 3, 2016
    Publication date: April 20, 2017
    Inventors: Jun-Tae AHN, Seong-Su CHO
  • Patent number: 9605347
    Abstract: Provided is a method of forming a film having a surface structure of a random wrinkles. A compound according to the present invention is coated and then, a film having a surface structure of random wrinkles may be simply formed through simple ultraviolet (UV) curing or thermosetting. When the film thus formed is used in an organic light emitting device, light generated from the organic light emitting device is scattered on surfaces of the random wrinkles to prevent light guide or total reflection, and thus, light is extracted to the outside. That is, a random structure disposed at the outside of the device performs a light extraction function and consequently, light efficiency of the organic light emitting device may be increased.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: March 28, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jaehyun Moon, Seung Koo Park, Jeong Ik Lee, Jin Wook Shin, Doo-Hee Cho, Joo Hyun Hwang, Chul Woong Joo, Jun-Han Han, Jin Woo Huh, Joon Tae Ahn, Nam Sung Cho, Hye Yong Chu, Byoung Gon Yu
  • Patent number: 9590659
    Abstract: A method of transmitting a broadcast signal includes encoding mobile data for FEC (Forward Error Correction); encoding signaling information for signaling the mobile data; allocating the encoded mobile data and signaling data into a transmission frame; and transmitting the broadcast signal including the transmission frame, wherein the transmission frame includes a service signaling table having service_type information identifying a type of a service of the mobile data and hidden information indicating whether the service of the mobile data is hidden or not.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: March 7, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Chul Soo Lee, In Hwan Choi, Ho Taek Hong, Kook Yeon Kwak, Hyoung Gon Lee, Jae Hyung Song, Jin Pil Kim, Won Gyu Song, Joon Hui Lee, Jin Woo Kim, Byoung Gill Kim, Jong Yeul Suh, Kyu Tae Ahn
  • Patent number: 9580597
    Abstract: The present invention relates to a polycarbonate composition including a polycarbonate and an impact reinforcing agent, and an inorganic filler to improve a mechanical property thereof, and a copolycarbonate to solve a problem of appearance defect caused by including the inorganic filler.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: February 28, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Yoon Seon Jeong, Moo Seok Lee, Ryul Lee, Sung Tae Ahn, Ik Hwan Cho