Patents by Inventor Han Cho

Han 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).

  • Patent number: 10672296
    Abstract: The present invention relates to a device, a teaching aid, and a platform for computing mathematics, and the method for providing the same, which especially provides a method for making the meanings of mathematical equations intuitively and stereoscopically understood by computing various mathematics and expressing their processes with engraving objects (e.g., cube, block, etc.), a computing device/teaching aid for providing the method and the platform for providing various services through a mathematical computation using engraving objects. In particular, the teaching aid for computing mathematics provides a sequence board and a plurality of cubes which are arranged and rearranged on the sequence board, so that various mathematical problems and computing processes for the mathematical problems can be visually expressed in three-dimension and a user can intuitively understand the principles and solutions of the mathematical problems.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: June 2, 2020
    Assignee: EQUALKEY CORP.
    Inventor: Bong Han Cho
  • Publication number: 20200140677
    Abstract: A tablet form of an epoxy resin composition for encapsulation of semiconductor elements, where the tablet form of the epoxy resin composition: (i) includes 97 wt % or more of tablets having a diameter of 0.1 mm to less than 2.8 mm and a height of 0.1 mm to less than 2.8 mm, as measured using an ASTM standard sieve; (ii) satisfies the following Equation 1, ? ? ? D × ? ? ? H ? ? ? D + ? ? ? H ? 1.0 , where ?D is a standard deviation of tablet diameters and ?H is a standard deviation of tablet heights, as measured with respect to 50 tablets arbitrarily selected from the tablets; and (iii) the tablets have a compression density of 1.2 g/mL to 1.7 g/mL.
    Type: Application
    Filed: December 20, 2019
    Publication date: May 7, 2020
    Inventors: Sang Jin KIM, Sang Kyun KIM, Tae Shin EOM, Dong Hwan LEE, Young Joon LEE, Yong Han CHO
  • Publication number: 20200130775
    Abstract: A shock absorbing and height adjusting structure includes an inner tube, a lower piston assembly and an upper piston assembly. The inner tube includes an upper end, a lower end opposite to the upper end, and an inner space for accommodating a gas. The lower piston assembly includes a lower piston movably inserted into the inner tube, and a lower passage disposed at the lower piston. The upper piston assembly includes an upper piston movably inserted into the inner tube. When the lower passage is opened, the lower piston is moved relative to the lower end, and when the upper piston is forced, the upper piston has movement relative to the upper end toward the lower end to compress the gas.
    Type: Application
    Filed: October 30, 2019
    Publication date: April 30, 2020
    Inventor: Kai-Han CHO
  • Publication number: 20200083250
    Abstract: A three-dimensional semiconductor device includes: a common source line passing between a first channel structure and a second channel structure and between a first dummy channel structure and a second dummy channel structure, in which a distance in a first direction between the common source line and the first channel structure is equal to a distance in the first direction between the common source line and the second channel structure, and a distance in the first direction between the common source line and the first dummy channel structure is different from a distance in the first direction between the common source line and the second dummy channel structure.
    Type: Application
    Filed: April 15, 2019
    Publication date: March 12, 2020
    Inventors: YOUNG-JIN JUNG, Hyoung-ryeol In, Sung-han Cho
  • Patent number: 10552545
    Abstract: The present invention relates to a mathematical translator, a mathematical translation device and a mathematical translation platform, which especially allows a user to understand principle of mathematics of its own accord and express the principle in words by interpreting the meaning of the mathematical expression in a natural language when the specific mathematical expression is inputted.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: February 4, 2020
    Inventor: Bong Han Cho
  • Publication number: 20190315177
    Abstract: A bush device for an eye section of a leaf spring applied to a suspension of a vehicle is disclosed. The bush device includes a first hollow bush that is configured to be inserted into the eye section, and a plurality of second bushes that are disposed adjacent to both side surfaces of the eye section, respectively. Each of the second bushes have an aperture that is formed at a central portion thereof, and a leaf spring fixing bracket into which the second bushes are inserted.
    Type: Application
    Filed: November 3, 2018
    Publication date: October 17, 2019
    Inventors: Sung-Han Cho, Yong-Soo Lee
  • Publication number: 20190270127
    Abstract: Embodiments include a method for manufacturing a hot-rolled coil and a method for correcting the shape of a hot-rolled coil. In one embodiment, the method for manufacturing the hot-rolled coil includes the steps of: reheating a steel slab comprising 0.18 to 0.56 wt % carbon (C), 0.1 to 0.5 wt % silicon (Si), 0.7 to 6.5 wt % manganese (Mn), more than 0 wt % but not more than 0.02 wt % phosphorus (P), more than 0 wt % but not more than 0.02 wt % sulfur (S), more than 0 wt % but not more than 0.3 wt % chromium (Cr), more than 0 wt % but not more than 0.004 wt % boron (B), 0.01 to 0.04 wt % titanium (Ti), and the remainder being iron (Fe) and other inevitable impurities; hot-rolling the steel slab at a finishing mill delivery temperature of 850° C. to 950° C., thereby forming a hot-rolled sheet; and cooling the hot-rolled sheet, followed by coiling at a coiling temperature of 700° C. or higher.
    Type: Application
    Filed: July 21, 2017
    Publication date: September 5, 2019
    Inventors: Seung Han Cho, Ji Seong Hwang, Tae Kyung Kim, Hyun Soo Kim, Hyeong Jin Kim, Myung Soo Park, Young Soo Park, Ki Pyo Lee, Seung Ha Lee, Jong Hyob Lim, Jun Seok Lim, Hee Joong Lim
  • Patent number: 10335668
    Abstract: An electric vehicle includes a carrier, a free-wheel unit, a foot-wheel unit, a driving unit, a first angle-detecting unit and a micro processing unit. The carrier is for supporting a user. The free-wheel unit is disposed at one end of the carrier. The foot-wheel unit is disposed at the other end of the carrier. The driving unit is disposed at the free-wheel unit or the foot-wheel unit, and is for providing a power to the electric vehicle. The first angle-detecting unit is disposed at the free-wheel unit or the carrier, and is for detecting a swinging status between the free-wheel unit and the carrier so as to provide a swinging signal. The micro processing unit is signally connected to the driving unit and the first angle-detecting unit. When the swinging signal achieves a predetermined condition determined by the micro processing unit, the driving unit is turned on.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: July 2, 2019
    Inventor: Kai-Han Cho
  • Publication number: 20190031047
    Abstract: An electric vehicle includes a carrier, at least one wheel assembly, a driving module and a controlling module. The carrier is for carrying an user. The wheel assembly is disposed at the carrier and includes a wheel. The driving module includes a motor disposed at the wheel assembly. The driving module is for switching the motor and includes a sensing unit and a microprocessor. The sensing unit is electronically connected to the motor to detect at least one characteristic of the motor. The microprocessor is electronically connected to the motor. The microprocessor determines whether a predetermined conduction is satisfied according to the characteristic of the motor. When the predetermined conduction is satisfied, the motor is turned off by the microprocessor.
    Type: Application
    Filed: July 24, 2018
    Publication date: January 31, 2019
    Inventor: Kai-Han CHO
  • Patent number: 10173117
    Abstract: A ball-returning net comprises a vertical wire frame, a vertical net, a floor wire frame, a slope net, two side barrier nets, and a detachable strap. The vertical net is fixed to the edge portion of the vertical wire frame and blocking the opening of the vertical wire frame. The slope net is disposed over the floor wire frame so as to be tilted from an elevated lower portion of the vertical net to a front edge portion of the floor wire frame, so as to be configured that a ball hitting the vertical net falls down on the slope net and rolls down in a direction of the front edge portion of the floor wire frame. The detachable strap holds the slope net and the vertical wire frame tightly, bending a rear portion of the slope net in a V shape.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: January 8, 2019
    Inventor: Kwang Han Cho
  • Publication number: 20180361226
    Abstract: An electric vehicle includes a carrier, a free-wheel unit, a foot-wheel unit, a driving unit, a first angle-detecting unit and a micro processing unit. The carrier is for supporting a user. The free-wheel unit is disposed at one end of the carrier. The foot-wheel unit is disposed at the other end of the carrier. The driving unit is disposed at the free-wheel unit or the foot-wheel unit, and is for providing a power to the electric vehicle. The first angle-detecting unit is disposed at the free-wheel unit or the carrier, and is for detecting a swinging status between the free-wheel unit and the carrier so as to provide a swinging signal. The micro processing unit is signally connected to the driving unit and the first angle-detecting unit. When the swinging signal achieves a predetermined condition determined by the micro processing unit, the driving unit is turned on.
    Type: Application
    Filed: June 18, 2018
    Publication date: December 20, 2018
    Inventor: Kai-Han CHO
  • Patent number: 10109252
    Abstract: A gate driving circuit includes driving stages. Each of the driving stages applies each of gate signals to each of gate lines of a display panel. A k-th (k is a natural number equal to or greater than 2) driving stage includes a first output transistor, a capacitor, and first and second control transistor. The first output transistor includes a control electrode connected to a first node, an input electrode receiving a clock signal, and an output electrode outputting a k-th gate signal. The capacitor is connected between the output electrode of the first output transistor and the control electrode of the first output transistor. The first control transistor applies a first control signal to a second node to control a voltage of the first node before the k-th gate signal is output. The second control transistor is diode-connected between the second node and the first node.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: October 23, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Duc-han Cho, Beomjun Kim, Yoonho Kim, Noboru Takeuchi, Kangnam Kim
  • Publication number: 20180247603
    Abstract: A gate driving circuit includes driving stages. Each of the driving stages applies each of gate signals to each of gate lines of a display panel. A k-th (k is a natural number equal to or greater than 2) driving stage includes a first output transistor, a capacitor, and first and second control transistor. The first output transistor includes a control electrode connected to a first node, an input electrode receiving a clock signal, and an output electrode outputting a k-th gate signal. The capacitor is connected between the output electrode of the first output transistor and the control electrode of the first output transistor. The first control transistor applies a first control signal to a second node to control a voltage of the first node before the k-th gate signal is output. The second control transistor is diode-connected between the second node and the first node.
    Type: Application
    Filed: April 27, 2018
    Publication date: August 30, 2018
    Inventors: Duc-han Cho, Beomjun Kim, Yoonho Kim, Noboru Takeuchi, Kangnam Kim
  • Patent number: 9978327
    Abstract: A gate driving circuit includes driving stages. Each of the driving stages applies each of gate signals to each of gate lines of a display panel. A k-th (k is a natural number equal to or greater than 2) driving stage includes a first output transistor, a capacitor, and first and second control transistor. The first output transistor includes a control electrode connected to a first node, an input electrode receiving a clock signal, and an output electrode outputting a k-th gate signal. The capacitor is connected between the output electrode of the first output transistor and the control electrode of the first output transistor. The first control transistor applies a first control signal to a second node to control a voltage of the first node before the k-th gate signal is output. The second control transistor is diode-connected between the second node and the first node.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: May 22, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Duc-Han Cho, Beomjun Kim, Yoonho Kim, Noboru Takeuchi, Kangnam Kim
  • Publication number: 20180114464
    Abstract: The present invention relates to a device, a teaching aid, and a platform for computing mathematics, and the method for providing the same, which especially provides a method for making the meanings of mathematical equations intuitively and stereoscopically understood by computing various mathematics and expressing their processes with engraving objects (e.g., cube, block, etc.), a computing device/teaching aid for providing the method and the platform for providing various services through a mathematical computation using engraving objects. In particular, the teaching aid for computing mathematics provides a sequence board and a plurality of cubes which are arranged and rearranged on the sequence board, so that various mathematical problems and computing processes for the mathematical problems can be visually expressed in three-dimension and a user can intuitively understand the principles and solutions of the mathematical problems.
    Type: Application
    Filed: October 25, 2017
    Publication date: April 26, 2018
    Inventor: Bong Han CHO
  • Publication number: 20180089177
    Abstract: The present invention relates to a mathematical translator, a mathematical translation device and a mathematical translation platform, which especially allows a user to understand principle of mathematics of its own accord and express the principle in words by interpreting the meaning of the mathematical expression in a natural language when the specific mathematical expression is inputted.
    Type: Application
    Filed: September 27, 2017
    Publication date: March 29, 2018
    Inventor: Bong Han CHO
  • Publication number: 20180068587
    Abstract: The present invention relates to a method of extracting regularity for an arbitrary number sequence and a device using the same, and especially provides a method and a device for finding regularity for an arbitrary number sequence using objects and computing the number that appears after a certain amount of time or times.
    Type: Application
    Filed: September 1, 2017
    Publication date: March 8, 2018
    Inventor: Bong Han CHO
  • Patent number: 9910059
    Abstract: A method is provided for analyzing motion of a subject. The method includes receiving multiple events from an event-based sensor, the events corresponding to a luminance change of the subject; calculating velocities of the events and directions of the events; generating a motion analysis table comprising an X axis classified into multiple velocity sections, a Y axis classified into multiple direction sections, and multiple cells representing frequencies of events corresponding to combinations of the velocity sections and the direction sections; and determining a motion of the subject based on the motion analysis table.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: March 6, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-Hyuk Bae, Kyu-Min Kyung, Tae-Chan Kim, Seong-Yeong Jeong, Shung-Han Cho
  • Patent number: D813773
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: March 27, 2018
    Assignee: Kia Motors Corporation
    Inventors: Soo Han Cho, Sung Hoon Ahn, Sung Sik Kong
  • Patent number: D839168
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: January 29, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Soo-Han Cho, Seung-Jin Kim