Patents by Inventor Ho Chu

Ho Chu 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: 9722391
    Abstract: A laser system according to an embodiment of the present invention includes an oscillation unit to generate a laser output, a connection unit to connect the oscillation unit with an optical fiber loop, an amplifying unit to amplify the laser output on the optical fiber loop, a conversion unit disposed on the optical fiber loop to convert pulsed wave laser output into continuous wave laser output, and an output unit disposed between the connection unit and the conversion unit to split a part of the laser output toward the conversion unit. The system for generating a high output pulsed wave laser and converting the pulsed wave laser into a continuous wave laser may be implemented in a simple structure and small size with high stability and high reproducibility. In addition, a high output laser may be obtained. Also, since conversion from the pulsed wave into the continuous wave is easy, both of the high output pulsed wave and the high output continuous wave may be obtained as necessary.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: August 1, 2017
    Assignee: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Young Geun Han, Ryun Kyung Kim, Sang Oh Park, Oh Jang Kwon, Su Ho Chu
  • Patent number: 9708848
    Abstract: A magnetic curtain and a sliding panel formed therefrom are revealed. A magnetic curtain includes an upper portion, a lower portion, a plurality of a plurality of middle portions arranged between the upper portion and the lower portion, and a plurality of magnetic parts disposed on an interface between two adjacent portions of the magnetic curtain. While the magnetic curtain is retracted, the two adjacent middle portions are folded in half in turn to form a curved part respectively. The two adjacent curved parts are away from each other so as to prevent protrusion and extension caused by overlapping of the curved parts. Thus the magnetic curtain has more applications and higher use efficiency.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: July 18, 2017
    Assignee: NEO-KINGSTONE INDUSTRIAL CO., LTD.
    Inventor: Chen-Ho Chu
  • Patent number: 9711738
    Abstract: The design and synthesis of six nickel charge transfer (CT) complexes are described herein. The six nickel CT complexes have a nickel center, two organic ligands coordinated with the nickel center to form a dianionic square planar supramolecule and an organic counter-cation as represented by The ligands and counter-cations are selected to optimize properties, such as molecular alignment, film morphology, and molecular packaging. Described herein, the ligands can be 2,3-pyrazinedithiol (L1), 1,2-benzenedithol (L2) or 2,3-quinoxalinedithol (L3) and the counter-cations can be diquat (2,2?-ebpy) or methyl viologen (4,4?-mbpy). The six nickel CT complexes can also be utilized semiconductor devices, such as thin film transistors or inverters. Processes are also provided for the fabrication of semiconductors devices. The processes can include fabricating a substrate with a bilayer octadecylphosphonic acid (ODPA)/Al2O3 dielectric and applying one of the six nickel charge transfer (CT) complexes to the substrate.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: July 18, 2017
    Assignee: CITY UNIVERSITY OF HONG KONG
    Inventors: Vellaisamy A. L. Roy, Zong-Xiang Xu, Paul Kim Ho Chu, Tat Kun Kwok
  • Publication number: 20170159551
    Abstract: A turbocharger structure for a vehicle includes a turbine turned by exhaust gas, a first scroll communicating with an exhaust port of an engine block so as to allow the exhaust gas to flow therein, the first scroll surrounding the turbine by extending along a circumferential direction of the turbine and being provided with an opening at an end thereof for discharging exhaust gas to the turbine, and a second scroll communicating with an exhaust port of the engine block so as to allow exhaust gas to flow therein, the second scroll surrounding the turbine, along with the first scroll by extending along the circumferential direction of the turbine, and being provided with an opening at an end thereof for discharging exhaust gas to the turbine, wherein the ends of the first scroll and the second scroll having the respective openings are disposed at different locations on a circumference of the turbine.
    Type: Application
    Filed: July 27, 2016
    Publication date: June 8, 2017
    Inventor: Dong Ho CHU
  • Publication number: 20170159580
    Abstract: An engine system includes an engine including a plurality of cylinders generating driving torque by combustion of fuel, a cylinder deactivation apparatus (CDA) disposed at one or more of the plurality of cylinders for selectively deactivating the one or more of the plurality of cylinders, a first exhaust manifold connected to cylinders at which the CDA apparatus is disposed, a second exhaust manifold connected to cylinders at which the CDA apparatus is not disposed, a turbocharger including a turbine rotated by exhaust gas exhausted from the first exhaust manifold, and further including a compressor rotated together with the turbine for compressing air supplied to the cylinders, and an electric supercharger including a motor and an electric compressor operated by the motor for supplying compressed air to the cylinders.
    Type: Application
    Filed: August 16, 2016
    Publication date: June 8, 2017
    Inventors: Dong Hee HAN, Joowon LEE, Hyungbok LEE, Dong Ho CHU, Jong Il PARK
  • Patent number: 9664099
    Abstract: An apparatus for discharging exhaust gas of a vehicle may include an exhaust port forming a first confluence part at which at least two runners among runners of an exhaust manifold connected with a cylinder are joined, and a second confluence part at which the remaining runners are joined, and a connector member having an inlet port through which exhaust gas discharged through the exhaust port is introduced, and having a partition which is formed toward the exhaust port in the inlet port so as to partition the first confluence part and the second confluence part.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: May 30, 2017
    Assignee: Hyundai Motor Company
    Inventor: Dong Ho Chu
  • Publication number: 20170145904
    Abstract: The present disclosure provides an engine structure for a vehicle. The engine structure includes: an intake port, a port plate provided in the single flow path of the intake port, and an injector. The port plate is longitudinally parallel to the flow path of the intake port so as to divide the flow path of the intake port into upper and lower flow paths, and the port plate includes an extension portion formed on part of a downstream end of the port plate such that the extension portion of the downstream end of the port plate extends longer than other portion of the downstream end of the port plate. In particular, the injector is provided in the intake port, and sprays fuel beyond the extension portion so as to inhibit the fuel from adhering to the port plate.
    Type: Application
    Filed: July 25, 2016
    Publication date: May 25, 2017
    Applicants: Hyundai Motor Company, KIA Motors Corporation
    Inventors: Dong Ho CHU, Nahm Roh JOO, Yang Geol LEE, Jong Il PARK, Yong Hoon KIM, Myung Gu HA, Dong Hee HAN
  • Publication number: 20170145948
    Abstract: A cylinder head integrated with an exhaust manifold and an exhaust gas recirculation (EGR) cooler may include an exhaust manifold including a plurality of connection parts connected to a plurality of exhaust ports, respectively, and an extension part connected to a plurality of connection parts, a water jacket provided at a location adjacent to the exhaust manifold, and an EGR cooler communicating with the water jacket and configured to surround an outside of the extension part of the exhaust manifold.
    Type: Application
    Filed: August 25, 2016
    Publication date: May 25, 2017
    Applicants: Hyundai Motor Company, Kia Motors Corp.
    Inventor: Dong Ho CHU
  • Patent number: 9658762
    Abstract: A method for controlling display of an object displayed on a touch screen in a mobile terminal is provided. The method includes displaying the object on the touch screen, generating an extension bar in response to a touch that is detected on the touch screen for a period of time, generating a zoom window in response to resizing of the extension bar, and zooming in and displaying content of the object in response to movement of the generated zoom window.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: May 23, 2017
    Assignees: Samsung Electronics Co., Ltd., INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Jung-Hoon Park, Yong Gu Ji, So-Young Kim, Sung-Joo Ahn, Hwan Hwangbo, Hyo Chang Kim, Hyung Jun Oh, Hyun-Guk Yoo, Gyeong-Ho Chu
  • Publication number: 20170114923
    Abstract: A diaphragm valve for a vehicle includes: a diaphragm chamber having an upper chamber and a lower chamber divided by a diaphragm and communicating with a valve inlet and a valve outlet. The upper chamber has a nipple in which a fluid flows or from which a fluid is discharged, and the lower chamber has a chamber opening port at a lower end thereof. A valve rod is coupled to the diaphragm and extends toward the valve outlet. A valve head is provided at a position corresponding to an end W of the valve rod and has a wider cross sectional area than the valve rod. The valve head closes the valve outlet when the valve is closed, and closes the chamber opening port when the valve is open.
    Type: Application
    Filed: June 2, 2016
    Publication date: April 27, 2017
    Inventors: Dong Ho CHU, Hyung Jin KIM, Yong Hoon KIM, Teock Hyeong CHO
  • Publication number: 20170110600
    Abstract: The present invention relates to a method of manufacturing a photovoltaic device having an ultra-shallow junction layer. In the method, a crystalline silicon substrate is cleaned and a first doped semiconductor layer with 1.12 eV bandgap and 5˜80 nm of thickness is grown on the crystalline silicon substrate by high density plasma electron cyclotron resonance CVD in a preparation condition of a temperature of the crystalline silicon substrate ranging from 50° C. to 250° C. , about 500W of microwave power, deposition pressure below 50 mTorr, about 20 sccm of argon and hydrogen flow rate, SiH4 flow rate ranging from 1 sccm to 2 sccm, and 2% boroethane flow rate ranging from about 5 seem to 15 sccm. The photovoltaic device of the present invention has advantages of abrupt homo-junction, ultra-thin high-crystallinity silicon-based thin film, highly-doped concentration, high conductivity and high short-circuit current, thereby having improved efficiency.
    Type: Application
    Filed: October 14, 2015
    Publication date: April 20, 2017
    Inventors: Jenq-Yang CHANG, Chien-Chieh LEE, Ting-Tung LI, Yen-Ho CHU, Teng-Hsiang CHANG, Shih-Hung WANG
  • Patent number: 9567620
    Abstract: A resistive sensor for an analyte comprises a substrate, a conductive polymer layer and an oxidase layer. Hydrogen peroxide is produced via the reaction between analyte and oxidase when a liquid sample is applied to the sensor of the present invention. The produced hydrogen peroxide can oxidize peroxidase, which can be reduced by oxidizing the conductive polymer, thus resulting in decreased conductivity of the conductive polymer for determining the analyte concentration in the liquid sample. The present invention may be used for developing miniaturized and disposable electronic microsensors with high sensitivity and fast response, which can detect analyte level in typical physiological environment for routine monitoring.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: February 14, 2017
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Yu-Lin Wang, Kuan-Chung Fang, Chia-Ho Chu
  • Publication number: 20170030306
    Abstract: An auxiliary cooling system which is provided separately from an engine cooling passage in a vehicle provided with a turbo engine. The auxiliary cooling system includes a first line which connects a radiator and an intercooler to each other and on which an electric water pump is installed. A second line connects the intercooler and an intake manifold. A third line connects the intake manifold and the radiator, and a bypass valve selectively directly transfers cooling water, heated while passing through a turbine housing provided on a path of the third line, to the radiator or transfers the cooling water to the radiator via an engine block or a heater. Cooling water discharged from the intake manifold passes through an ETC (electronic throttle control) unit and thus reduces a temperature of intake air passing through the ETC unit.
    Type: Application
    Filed: November 9, 2015
    Publication date: February 2, 2017
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Dong Ho Chu, Jong Il Park, Dong Hee Han
  • Publication number: 20170022890
    Abstract: A valve device of a turbocharger includes: a valve seat disposed on an entrance of a fluid passage divided into at least two branches, and an opening/closing valve coupled to a rotary shaft rotatably disposed adjacent to the valve seat. The valve seat has a contact surface which is flat and a dividing section which extends across the entrance and divides the entrance into two entrance sections. The opening/closing valve closes the entrance of the fluid passage disposed in the valve seat. The bottom surface of the opening/closing valve is in surface contact with the contact surface of the valve seat. The central portion of the opening/closing valve corresponding to the dividing section is spaced apart from the dividing section at a predetermined distance.
    Type: Application
    Filed: December 1, 2015
    Publication date: January 26, 2017
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, KEY YANG PRECISION CO., LTD.
    Inventors: Dong Ho CHU, Kyu Sik CHO
  • Publication number: 20160333821
    Abstract: The present disclosure provides an apparatus for improving engine air flow including: a combination recess which is formed at an intake port of a cylinder head and is extended toward a combustion chamber along an air flow path at a position combined with an intake manifold; a fixing body which is fit-inserted to and combined to the combination recess; and a plate an end of which is combined to the fixing body on the flow path of the intake port and which guides the air flow flowing into the intake port.
    Type: Application
    Filed: October 27, 2015
    Publication date: November 17, 2016
    Applicants: HYUNDAI MOTOR COMPANY, Kia Motors Corporation
    Inventor: Dong Ho CHU
  • Patent number: 9488068
    Abstract: An apparatus circulates a coolant in a turbocharger, which includes a first coolant line for supplying the coolant to the turbocharger from a water pump and configured to form a first flow resistance member to increase flow resistance to the coolant flowing through the first coolant line.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: November 8, 2016
    Assignees: Hyundai Motor Company, Kia Motor Corp.
    Inventors: Dong Ho Chu, Seon Yeong Kim, Yong Hoon Kim, Kwang Sik Yang, Hyung Ick Kim, Yung Hee Han
  • Publication number: 20160315440
    Abstract: A laser system according to an embodiment of the present invention includes an oscillation unit to generate a laser output, a connection unit to connect the oscillation unit with an optical fiber loop, an amplifying unit to amplify the laser output on the optical fiber loop, a conversion unit disposed on the optical fiber loop to convert pulsed wave laser output into continuous wave laser output, and an output unit disposed between the connection unit and the conversion unit to split a part of the laser output toward the conversion unit. The system for generating a high output pulsed wave laser and converting the pulsed wave laser into a continuous wave laser may be implemented in a simple structure and small size with high stability and high reproducibility. In addition, a high output laser may be obtained. Also, since conversion from the pulsed wave into the continuous wave is easy, both of the high output pulsed wave and the high output continuous wave may be obtained as necessary.
    Type: Application
    Filed: June 1, 2011
    Publication date: October 27, 2016
    Inventors: Young Geun HAN, Ryun Kyung KIM, Sang Oh PARK, Oh Jang KWON, Su Ho CHU
  • Publication number: 20160305900
    Abstract: A biosensor includes a transistor and a reactive electrode. The transistor has a source, a drain and a gate surface disposed therebetween. The reactive electrode is spaced apart from the gate surface of the transistor, has a receptor immobilized thereon for specific binding with an analyte in a liquid sample, and is configured to contact the liquid sample together with the gate surface of the transistor.
    Type: Application
    Filed: October 2, 2015
    Publication date: October 20, 2016
    Applicant: NATIONAL TSING HUA UNIVERSITY
    Inventors: Yu-Lin WANG, Jen-Inn CHYI, Chia-Ho CHU, Indu SARANGADHARAN
  • Patent number: 9464597
    Abstract: An engine system may include a main intake line, a supplementary intake line branched from the main intake line and joined to the main intake line, an intake bypass valve mounted to the main intake line, a main exhaust line mounted to an exhaust manifold, a supplementary exhaust line branched from the exhaust manifold and joined to the main exhaust line, an exhaust bypass valve mounted to the main exhaust line and selectively opening the main exhaust line, a turbocharger disposed adjacent to the supplementary exhaust line and operated by exhaust gas passing through the supplementary exhaust line, and a control unit for controlling the intake bypass valve and the exhaust bypass valve depending on an operation condition, wherein the exhaust gas is re-circulated from an upstream side of the exhaust bypass valve to the main intake line passing through an EGR (Exhaust Gas Recirculation) cooler and an EGR valve.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: October 11, 2016
    Assignee: Hyundai Motor Company
    Inventors: Dong Hee Han, Seung Kook Han, Hyeon Ho Kim, Il Joong Hwang, Dong Ho Chu, Jong Il Park, Yoon Joo Kim, Hyuk Im, Hyun Jun Lim
  • Patent number: D779829
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: February 28, 2017
    Inventor: Wai Ho Chu