Patents by Inventor Jin-woo Cho

Jin-woo Cho 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).

  • Terminal
    Patent number: 8466876
    Abstract: A terminal includes a lower housing; an upper housing slidably installed with respect to the lower housing; and a pressing member with both ends being supported by the lower and upper housings, respectively, for providing variable levels of pressure in diverse directions according to a sliding position of the upper housing with respect to the lower housing, wherein one end of the pressing member is movably linked to the lower housing. The small-sized pressing member provides a maximum level of pressure to facilitate the sliding movement of the upper housing with respect to the lower housing. Thus, space utilization can be improved.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: June 18, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-ok Kwak, Eun-deok Bae, Dong-woo Lee, Ki-taek Kim, Seong-woon Booh, Jin-woo Cho
  • MOTOR AND ROTOR OF A MOTOR
    Publication number: 20130088112
    Abstract: A motor includes a first rotor and a second rotor which are disposed at opposite sides of a stator, and each of the first rotor and the second rotor includes a plurality of modules, each including a pair of permanent magnets and a connection unit which connects ends of the permanent magnets.
    Type: Application
    Filed: February 10, 2012
    Publication date: April 11, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-Woo CHO, Seong-Taek LIM
  • SOLAR CELL COMPRISING BULK HETEROJUNCTION INORGANIC THIN FILM AND FABRICATION OF THE SOLAR CELL
    Publication number: 20130048062
    Abstract: Provided is a bulk heterojunction inorganic thin film solar cell and a method for fabricating the same. More particularly, the solar cell includes an inorganic thin film having a bulk heterojunction formed by using vertically grown n-type semiconductor nanostructure electrodes and filling the void spaces among the nanostructures with p-type semiconductor materials, unlike the known planar type inorganic thin film solar cells including n-type semiconductors and p-type semiconductors.
    Type: Application
    Filed: December 21, 2011
    Publication date: February 28, 2013
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Byoung Koun MIN, Jaehoon KIM, Jin Woo CHO, Jeong Myeong HA, Chang Soo KIM
  • APPARATUS AND METHOD FOR CONTROLLING ACTUATOR
    Publication number: 20130038266
    Abstract: Provided is an actuator control apparatus including: an observer configured to estimate a state of a load based on a state equation including at least one modeled load parameter; a controller which outputs a signal for controlling the load; a compensation unit which compensates for the signal output from the controller; and an estimator configured to estimate a change of a load parameter, to decide a gain of the compensation unit based on the estimated change of the load parameter, and to update the modeled load parameter.
    Type: Application
    Filed: February 15, 2012
    Publication date: February 14, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seong-Taek LIM, Jong-Sun KO, Jin-Woo CHO
  • Passive optical network comprising an optical burst mode receiver
    Patent number: 8340519
    Abstract: A passive optical network is disclosed that enables burst mode operation without some of the disadvantages for doing so in the prior art. An embodiment of the present invention comprises a receiver that receives optical signals from transmitters of a plurality of optical network units. For each transmission from an optical network unit, the receiver provides an output signal based on a comparison of the optical signal and a reference voltage that is specific to that optical network unit. A digital-to-analog converter generates the reference voltage in a data rate-independent manner based on information provided to it from the control plane.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: December 25, 2012
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Jaedon Kim, Jin-Woo Cho, Leonid G. Kazovsky
  • ROTOR AND MOTOR
    Publication number: 20120299429
    Abstract: A rotor and a motor are provided in which the q-axis inductance is increased and the leakage of magnetic flux is prevented to ensure high power operation at high level driving speeds. The rotor includes a rotor core, which is formed at the center thereof with a hole coupled to a shaft, and a module configured to be coupled to the rotor core and comprises a pair of first permanent magnets, which are space apart from each other, and a first connection part connecting ends of the first permanent magnets to each other.
    Type: Application
    Filed: April 17, 2012
    Publication date: November 29, 2012
    Applicants: Kyungpook National University Industry-Academic Cooperation Foundation, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hong-Soon CHOI, Jin-Woo CHO, Seong-Taek Lim
  • Ultrasonic motor and conveying apparatus having the same
    Patent number: 8274198
    Abstract: An ultrasonic motor includes a fixed member including a surface, a movable member positioned to face the surface of the fixed member, and an actuator to cause at least a portion of the movable member to contact the surface of the fixed member and cause the movable member to move relative to the fixed member.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: September 25, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sunghyuk Park, Jin-woo Cho, Ji-hyuk Lim
  • Vibrating element, fabrication method thereof, and ultrasonic motor having the same
    Patent number: 8237330
    Abstract: A vibrating element of an ultrasonic motor includes a vibrating member, and a piezoelectric body to produce a traveling wave thus to vibrate the vibrating member when electric power is applied to the piezoelectric body. The piezoelectric body includes a first piezoelectric layer attached to the vibrating member and in which positive poles and negative poles are alternately polarized, a second piezoelectric layer attached to the first piezoelectric layer and in which positive poles and negative poles are alternately polarized, a plurality of electrodes formed on opposite surfaces of the first and second piezoelectric layers, and an electrode connecting part formed on outer circumferential surfaces of the first and second piezoelectric layers to selectively connect the plurality of electrodes to one other.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: August 7, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-woo Cho, Ji-hyuk Lim, Sung-hyuk Park
  • Ink composition roll for printing
    Patent number: 8211222
    Abstract: The present invention provides an ink composition for roll printing, which comprises one or more first fluorine surfactants that comprise a hydrophilic component, a lipophilic component, and a fluorine component; and one or more second fluorine surfactants that comprise a fluorine component, and any one of a hydrophilic component and a lipophilic component.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: July 3, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Dae-Hyun Kim, Jin-Woo Cho, Dong-Myung Shin, Ji-Su Kim, Sung-Hyun Kim
  • SURGICAL INSTRUMENT
    Publication number: 20120143174
    Abstract: A surgical instrument utilized in a minimally invasive surgery is provided. The surgical instrument includes an end effecter configured to conduct a surgical operation, a piezoelectric driver configured to generate motive power, a power transmitting unit configured to transmit the motive power generated by the piezoelectric driver to the end effecter to operate the end effecter, and a housing which encloses the power transmitting unit and the at least one piezoelectric driver.
    Type: Application
    Filed: August 26, 2011
    Publication date: June 7, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun-Do CHOI, Yeon-Ho KIM, Jin-Woo CHO
  • THERMOELECTRIC DEVICE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20120111387
    Abstract: A thermoelectric device and a method for manufacturing the same are provided. The thermoelectric device includes a middle substrate, electrodes, N-type thermopiles, and P-type thermopiles, in which the N-type thermopile and the P-type thermopile are electrically connected to each other by the electrodes in series. The thermoelectric device includes further includes an upper substrate bonded to an upper surface of the middle substrate and a lower substrate bonded to a lower surface of the substrate, such that a temperature difference is provided between opposite sides of each of the N-type thermopiles and the P-type thermopiles.
    Type: Application
    Filed: May 2, 2011
    Publication date: May 10, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Jin-woo CHO
  • Variable compression ratio apparatus
    Patent number: 8166930
    Abstract: A variable compression ratio apparatus for varying a compression ratio, may include a connecting rod that is connected to a piston to take a combustion force; a pin link, one end of which is eccentrically connected to a crankshaft and the other end of which is pivotally connected to the connecting rod to form a connection portion therebetween; a slot link including a control slot to receive and guide the connection portion along the control slot; and a driving unit coupled to the slot link and configured to move the control slot to control a position of the connection portion.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: May 1, 2012
    Assignee: Hyundai Motor Company
    Inventors: Myung Rae Cho, Hong Wook Lee, Woo Tae Kim, Won Gyu Kim, Jin Woo Cho
  • Double Window/Door System for Blocking Infrared Light
    Publication number: 20120064265
    Abstract: There is provided a double window/door system for blocking infrared rays which includes a first glass member, a second glass member, and a spacer positioned between the first glass member and the second glass member for maintaining the space between the first glass member and the second glass member, characterized in that one of the surfaces of the first glass member is coated with a nano substance film for blocking near infrared rays and one of the surfaces of the second glass member is coated with a thermochromic substance film.
    Type: Application
    Filed: September 13, 2011
    Publication date: March 15, 2012
    Inventors: Moon Suhk Suh, Jin Woo Cho, Jong Hun Han, Seon-min Kim, Kwon-woo Shin
  • Ink composition for color filter and color filter
    Patent number: 8133962
    Abstract: A heat-curable ink composition and a color filter produced using the ink composition are provided. The ink composition and the color filter are highly resistant to heat and chemicals due to the use of a polyester resin prepared by polycondensation. In addition, unreacted anhydride groups are removed using a monohydric alcohol in the preparation of the ink composition to make the ink composition and the color filter very stable during storage.
    Type: Grant
    Filed: August 26, 2008
    Date of Patent: March 13, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Dae Hyun Kim, Han Soo Kim, Mi Ae Kim, Dong Myung Shin, Jae Joon Kim, Jin Woo Cho, Ji Su Kim, Mi Kyoung Kim, Min A. Yu, Min Young Lim, Sung Hyun Kim
  • Variable compression ratio apparatus
    Patent number: 8074612
    Abstract: A variable compression ratio apparatus is disclosed. An upper connecting rod has one end rotatably connected to a piston so as to reciprocate motion of the piston. A lower connecting rod has one end rotatably connected to the other end of the upper connecting rod. A crankshaft is rotatably mounted at an eccentric position of the lower connecting rod. A control rod has one end rotatably connected to the other end of the lower connecting rod, to control the position of that end of the lower connecting rod. A control shaft is connected to the other end of the control rod, to control the position of that end of the control rod.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: December 13, 2011
    Assignee: Hyundai Motor Company
    Inventors: Min Sig Shin, Myung Rae Cho, Hong Wook Lee, Woo Tae Kim, Won Gyu Kim, Jin Woo Cho
  • Piezoelectric ultrasonic motor and method of manufacturing the same
    Patent number: 8049396
    Abstract: A piezoelectric ultrasonic motor and a method of manufacturing the piezoelectric ultrasonic motor. The piezoelectric ultrasonic motor includes: a piezoelectric body that generates a traveling wave according to an applied voltage signal; a vibrator that is attached to the piezoelectric body and vibrates; and a rotator that contacts the vibrator and is rotated by friction with the vibrating vibrator, wherein the rotator includes a plate spring member having a contact portion that contacts the vibrator, a support member that is coupled to the plate spring member and supports the plate spring member, and a buffer space defined by the plate spring member and the support member.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: November 1, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-hyuk Park, Jin-woo Cho, Ji-hyuk Lim
  • Device for Treating Wastewater Comprising Nitrogen and Phosphorus and a Method for the Same
    Publication number: 20110247977
    Abstract: Disclosed are a device for treating nitrogen and phosphorus from wastewater, including: an algal culture tank for culturing microalgae capable of treating nitrogen and phosphorus from wastewater; and a separation membrane for separating thus treated water from the microalgae, and a method for the same. According to the disclosed device and method, microalgae are cultured at high concentrations using wastewater, instead of an artificial culture medium, as a culture medium. As a result, nitrogen and phosphorus can be effectively treated from the wastewater, and the microalgae, which are useful as a biomass, may be cultured and recovered stably.
    Type: Application
    Filed: July 12, 2010
    Publication date: October 13, 2011
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kyung Guen Song, Kyu Hong Ahn, Kang Woo Cho, Jin Woo Cho, Hae Seok Oh, Dong Won Ki
  • INK COMPOSITION FOR ROLL PRINTING
    Publication number: 20110244196
    Abstract: An ink composition for roll printing is provided. The ink composition uses a solvent having an evaporation rate (Vt) of at least 0.09 mg/cm2-min and an absorption rate (St) into a blanket of less than 3.5 mg/cm2-min. The use of the highly volatile solvent can minimize swelling of the blanket without impairing the dispersibility of a pigment in the ink composition. Therefore, the uniformity of a pattern formed using the ink composition can be maintained and the formation of defects by the solvent can be minimized.
    Type: Application
    Filed: August 27, 2008
    Publication date: October 6, 2011
    Applicant: LG CHEM, LTD
    Inventors: Dae Hyun Kim, Jin Woo Cho, Dong Myung Shin, Ji Su Kim, Min Young Lim, Sung Hyun Kim
  • Cooling apparatus and frost detecting method thereof
    Publication number: 20110185755
    Abstract: A cooling apparatus including a frost sensor to sense frost, a multiplexer having a first input terminal, to which the frost sensor is connected, and a second input terminal as a non-connected input terminal, a signal processor to subtract a signal input through the second input terminal from a signal input through the first input terminal, and to output a signal obtained by the subtraction, and a controller to detect an amount of frost sensed by the frost sensor, based on the output signal from the signal processor. It is possible to easily and accurately determine noise contained in a signal received from the frost sensor by determining, as noise, the signal received from the input terminal, to which the frost sensor is not connected, and subtracting the noise from the signal received from each input terminal, to which the frost sensor is connected.
    Type: Application
    Filed: January 6, 2011
    Publication date: August 4, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Gyu Kim, Jin Woo Cho, Young Chul Ko, Hyun Suk Kwak
  • Dual rotor oil pump of an engine with balance weight arrangement
    Patent number: 7985055
    Abstract: A balance shaft function may be realized without employing a balance shaft, when an oil pump includes an inner rotor fixed to the rotation shaft and an outer rotor that rotates with the inner rotor if at least one rotor of the inner and outer rotors has a mass center formed apart from a rotation center.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: July 26, 2011
    Assignee: Hyundai Motor Company
    Inventors: Min Sig Shin, Myung Rae Cho, Hong Wook Lee, Wootae Kim, Jin Woo Cho