Patents by Inventor Yu-Chen Liu

Yu-Chen Liu 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: 11171561
    Abstract: A transformer includes a magnetic core, a primary side winding and a plurality of secondary side windings. The magnetic core includes a first outer column, a second outer column, an upper cover and a lower cover. The first outer column and the second outer column are disposed between the upper cover and the lower cover. The primary side winding is disposed on the first outer column and the second outer column, and the plurality of secondary side windings are disposed on the first outer column and the second outer column. Each of the secondary windings has one end passing through a region between the first outer column and the second outer column.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: November 9, 2021
    Assignee: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Yu-Chen Liu, Chen Chen, De-Jia Lu, Yong-Long Syu, Kai-De Chen, Ching-Chia Chen, Katherine Ann Kim, Huang-Jen Chiu
  • Patent number: 11147262
    Abstract: The invention relates to an electric mousetrap with intelligent detection and safety protection functions, which includes a cavity structure defined by an upper shell and a base and provided with a hole, wherein a power supply module, an intelligent control circuit board, an indication module and a high-voltage generator module are mounted on the upper shell; three mutually-independent electrode plates are arranged on the base and all electrically connected with the intelligent control circuit board, and the intelligent control circuit board receives signals transmitted from the electrode plates and controls the indication module and the high-voltage generator module to act correspondingly after processing the signals. The electric mousetrap can intelligently detect the activity condition of a mouse in the mousetrap and electrically shock the mouse, is safe in use and has a good power saving effect.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: October 19, 2021
    Assignee: HANDLE TECH (SZ) CO., LTD.
    Inventor: Yu-Chen Liu
  • Publication number: 20210309757
    Abstract: The present application relates to a GD2-based chimeric antigen receptor comprising an antigen-binding domain, a transmembrane domain, a costimulatory signaling domain, a CD3? signaling domain, and a self-destructive domain in tandem arrangement; wherein the antigen-binding domain binds to a tumor surface antigen, wherein the tumor surface antigen is GD2, and the antigen-binding domain is a single-chain antibody against the tumor surface antigen GD2, wherein the self-destructive domain is a caspase 9 domain.
    Type: Application
    Filed: July 24, 2019
    Publication date: October 7, 2021
    Inventor: Yu Chen LIU
  • Patent number: 11063428
    Abstract: A switch circuit includes a first switch, a current protection component, a current detection circuit, and a controller. The first switch conducts a primary side coil. The current protection component generates a detection voltage. The current detection circuit outputs a protection voltage. When the detection voltage is not greater than a first threshold, the current detection circuit generates a first voltage corresponding to the detection voltage as the protection voltage. When the detection voltage is greater than the first threshold, the current detection circuit generates a second voltage corresponding to the detection voltage as the protection voltage, where the first voltage is different from the second voltage. The controller is suitable for making the first switch selectively conducting and not conducting. When the protection voltage is greater than a second threshold, the controller does not increase a proportion of a conduction time to a non-conduction time of the first switch.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: July 13, 2021
    Assignee: CHICONY POWER TECHNOLOGY CO., LTD.
    Inventors: Hsien-Yi Tsai, Yu-Chen Liu
  • Publication number: 20210191446
    Abstract: A quick-release structure includes a shaft and a driving assembly. Two ends of the shaft have a receiving hole and a connecting hole, respectively. The driving assembly includes a rotating handle and a connecting rod. One end of the rotating handle is provided with an end cap. The connecting rod includes a pivoting end and a driving section. The rotating handle is pivotally connected to the pivoting end of the connecting rod so that the rotating handle can be pivoted relative to one side of the connecting rod. When in use, the driving section is engaged in the connecting hole, and the rotating handle can be turned to drive the shaft to rotate; when not in use, the driving assembly is inserted into the receiving hole, and the end cap is pressed against an outer end of the receiving hole to be positioned.
    Type: Application
    Filed: August 4, 2020
    Publication date: June 24, 2021
    Inventor: Yu-Chen Liu
  • Patent number: 10976625
    Abstract: The display panel includes a first substrate, a second substrate, pixel structures, a liquid crystal layer and a transparent conductive layer. The liquid crystal layer is disposed between the pixel structures and the second substrate. The transparent conductive layer is disposed between the second substrate and the liquid crystal layer. When a liquid crystal molecule of the liquid crystal layer is a positive liquid crystal molecule, an absolute voltage difference between the transparent conductive layer and the common electrode is smaller than or equal to 2.3 volts(V). When the liquid crystal molecule of the liquid crystal layer is a negative liquid crystal molecule, the absolute voltage difference between the transparent conductive layer and the common electrode is smaller than or equal to 5V.
    Type: Grant
    Filed: February 2, 2020
    Date of Patent: April 13, 2021
    Assignees: HannStar Display (Nanjing) Corporation, HannStar Display Corporation
    Inventors: Wei-Chih Hsu, Chen-Hao Su, Yu-Chen Liu
  • Publication number: 20200395844
    Abstract: A transformer includes a magnetic core, a primary side winding and a plurality of secondary side windings. The magnetic core includes a first outer column, a second outer column, an upper cover and a lower cover. The first outer column and the second outer column are disposed between the upper cover and the lower cover. The primary side winding is disposed on the first outer column and the second outer column, and the plurality of secondary side windings are disposed on the first outer column and the second outer column. Each of the secondary windings has one end passing through a region between the first outer column and the second outer column.
    Type: Application
    Filed: February 3, 2020
    Publication date: December 17, 2020
    Inventors: Yu-Chen Liu, Chen Chen, De-Jia Lu, YONG-LONG SYU, Kai-De Chen, CHING-CHIA CHEN, Katherine Ann Kim, HUANG-JEN CHIU
  • Patent number: 10804347
    Abstract: A display panel includes a display device, a light-guiding structure and an anti-reflection structure. The light-guiding structure is disposed between the pixels to guide light beams emitted from the pixels toward a display surface. The anti-reflection structure is over the pixels of the display device, wherein the anti-reflection structure includes a photo-sensitive alignment layer, a liquid crystal circular polarizer and a linear polarizer. The photo-sensitive alignment layer is over the optical absorbing layer, wherein the photo-sensitive alignment layer is sensitive to and curable by the light within the wavelength range. The liquid crystal circular polarizer is over the photo-sensitive alignment layer, wherein the liquid crystal circular polarizer includes a plurality of liquid crystal molecules aligned by the photo-sensitive alignment layer. The linear polarizer is over the liquid crystal circular polarizer.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: October 13, 2020
    Assignee: INT TECH CO., LTD.
    Inventors: Yu-Chen Liu, Li-Chen Wei, Huei-Siou Chen
  • Publication number: 20200292114
    Abstract: A fastening structure includes a circular sleeve and a coupling member. One end of the circular sleeve has a receiving trough. A bottom of the receiving trough is provided with a first magnetic member. A wall of the receiving trough is provided with a protruding post. At least one guide groove is formed on an outer wall of one end of the coupling member. One end of the guide groove is an open axial groove having an opening. Another end of the guide groove is a closed axial groove having a stop end. The guide groove has a transverse groove between the open axial groove and the closed axial groove. Another end of the coupling member is a pivot end that has a central passage extending inwardly. A second magnetic member is disposed in the central passage. The first and second magnetic members have repulsive magnetic poles.
    Type: Application
    Filed: May 14, 2019
    Publication date: September 17, 2020
    Inventor: Yu-Chen Liu
  • Publication number: 20200283089
    Abstract: A quick-release device for a bicycle includes a shaft having a locking assembly at one end and an inner sleeve in another end. The inner sleeve is kept a distance apart from an end edge of a through hole of the shaft to form an inner annular trough portion at an outer end of the through hole. A threaded cylinder is insertedly connected to the inner annular trough portion. A perforation is defined in the threaded cylinder. One axial end of the threaded cylinder has a cylindrical flange. The cylindrical flange is insertedly connected to the inner annular trough portion of the shaft. A bolt is insertedly disposed in the perforation of the threaded cylinder. The bolt passes through the perforation and is inserted into the shaft to be screwed to the inner sleeve, so that the bolt presses and locks the threaded cylinder and the shaft.
    Type: Application
    Filed: March 10, 2019
    Publication date: September 10, 2020
    Inventor: Yu-Chen Liu
  • Patent number: 10753530
    Abstract: A quick-release mounting structure of an action camera casing includes a casing for accommodating an action camera, an insert member, a circular sleeve, a fixing member, and a quick-release assembly. An underside of the casing is provided with a coupling portion. The insert member is in a cylindrical shape and has a pivot end at an upper end thereof. The pivot end and the coupling portion are pivotally connected together by a coupling bolt. The circular sleeve is provided with an axial slit. An underside of the circular sleeve is provided with a coupling end. The insert member is inserted into the circular sleeve. The fixing member is provided with a pivot portion. The pivot portion and the coupling end are pivotally connected together by a bolt assembly. The quick-release assembly includes a fastening collar. The fastening collar is fitted onto the circular sleeve.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: August 25, 2020
    Assignee: FUL CHEE ENT CO., LTD.
    Inventor: Yu-Chen Liu
  • Publication number: 20200240574
    Abstract: A quick-release mounting structure of an action camera casing includes a casing for accommodating an action camera, an insert member, a circular sleeve, a fixing member, and a quick-release assembly. An underside of the casing is provided with a coupling portion. The insert member is in a cylindrical shape and has a pivot end at an upper end thereof. The pivot end and the coupling portion are pivotally connected together by a coupling bolt. The circular sleeve is provided with an axial slit. An underside of the circular sleeve is provided with a coupling end. The insert member is inserted into the circular sleeve. The fixing member is provided with a pivot portion. The pivot portion and the coupling end are pivotally connected together by a bolt assembly. The quick-release assembly includes a fastening collar. The fastening collar is fitted onto the circular sleeve.
    Type: Application
    Filed: January 30, 2019
    Publication date: July 30, 2020
    Inventor: Yu-Chen Liu
  • Patent number: 10715040
    Abstract: A voltage compensation circuit and a voltage compensation method are provided. The voltage compensation circuit detects the load current provided by a power supply, generates a load voltage according to the load current, and compares the load voltage with at least one reference voltage to generate a switch control signal. The voltage compensation circuit further drives the at least one switch according to the switch control signal, provides a compensation resistance value according to the at least one switch that is turned on, and provides a compensation voltage to the power supply, so that the power supply provides a precise output voltage.
    Type: Grant
    Filed: July 4, 2019
    Date of Patent: July 14, 2020
    Assignee: Chicony Power Technology Co., Ltd.
    Inventors: Wei-Yuan Chen, Yu-Chen Liu
  • Publication number: 20200211755
    Abstract: An adjustable leakage inductance transformer includes a magnetic core, a primary side coil and a secondary side coil. The magnetic core includes a magnetic core column structure, which has a central column, a first outer column and a second outer column. The primary side coil is wound on the first outer column and the second outer column by a first primary side coil loop number and a second primary side coil loop number, respectively. The secondary side coil is wound on the first outer column and the second outer column by a first secondary side coil loop number and a second secondary side coil loop number, respectively, the first primary side coil loop number is not equal to the first secondary side coil loop number, and the second primary side coil loop number is not equal to the second secondary side coil loop number.
    Type: Application
    Filed: September 19, 2019
    Publication date: July 2, 2020
    Inventors: Yu-Chen Liu, Chen Chen, Kai-De Chen, YONG-LONG SYU, ANH DUNG NGUYEN, HUANG-JEN CHIU
  • Publication number: 20200174330
    Abstract: The display panel includes a first substrate, a second substrate, pixel structures, a liquid crystal layer and a transparent conductive layer. The liquid crystal layer is disposed between the pixel structures and the second substrate. The transparent conductive layer is disposed between the second substrate and the liquid crystal layer. When a liquid crystal molecule of the liquid crystal layer is a positive liquid crystal molecule, an absolute voltage difference between the transparent conductive layer and the common electrode is smaller than or equal to 2.3 volts(V). When the liquid crystal molecule of the liquid crystal layer is a negative liquid crystal molecule, the absolute voltage difference between the transparent conductive layer and the common electrode is smaller than or equal to 5V.
    Type: Application
    Filed: February 2, 2020
    Publication date: June 4, 2020
    Inventors: Wei-Chih HSU, Chen-Hao SU, Yu-Chen LIU
  • Publication number: 20200161854
    Abstract: A switch circuit includes a first switch, a current protection component, a current detection circuit, and a controller. The first switch conducts a primary side coil. The current protection component generates a detection voltage. The current detection circuit outputs a protection voltage. When the detection voltage is not greater than a first threshold, the current detection circuit generates a first voltage corresponding to the detection voltage as the protection voltage. When the detection voltage is greater than the first threshold, the current detection circuit generates a second voltage corresponding to the detection voltage as the protection voltage, where the first voltage is different from the second voltage. The controller is suitable for making the first switch selectively conducting and not conducting. When the protection voltage is greater than a second threshold, the controller does not increase a proportion of a conduction time to a non-conduction time of the first switch.
    Type: Application
    Filed: April 8, 2019
    Publication date: May 21, 2020
    Inventors: Hsien-Yi Tsai, Yu-Chen Liu
  • Patent number: 10656434
    Abstract: The display device includes a first display panel and a second display panel. The first display panel includes first pixel structures having a first pixel pitch. The second display panel includes second pixel structures having a second pixel pitch. The first display panel is overlapped with the second display panel. A user would not see a moiré pattern generated by the display device by adjusting the first pixel pitch, the second pixel pitch, and an effective distance between the first display panel and the second display panel.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: May 19, 2020
    Assignees: HannStar Display (Nanjing) Corporation, HannStar Display Corporation
    Inventors: Yu-Chen Liu, Wei-Chih Hsu, Yen-Chung Chen
  • Patent number: 10656184
    Abstract: A signal process circuit includes a signal modulation unit, a first resistor, a second resistor, a first discharge unit, a second discharge unit and a discharge detection unit. The signal modulation unit is used to modulate an input signal for generating a modulated signal. The first resistor is coupled between the signal modulation unit and an operation node. The second resistor is coupled between the operation node and the signal modulation unit. The first discharge unit is coupled to the signal modulation unit. The discharge unit is coupled to the signal modulation unit. The discharge detection unit is coupled to the first discharge unit, the operation node and the second discharge unit for detecting an output common voltage and control a discharge path accordingly.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: May 19, 2020
    Assignee: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventors: Ying-Zong Juang, Hann-Huei Tsai, Po-Chang Wu, Yu-Chen Liu, Chih-Yuan Yeh
  • Patent number: 10624331
    Abstract: The invention relates to a novel mouse repeller including a cavity defined by a shell and a base, and a power rectification and supply part, an ultrasonic output module and a negative ion generator which are located in the cavity, wherein the power rectification and supply part supplies power to the ultrasonic output module and the negative ion generator, the ultrasonic output module includes an ultrasonic transducer protruding out of the shell, and the negative iron generator includes a discharge electrode plate which is a detachable and cleanable electrode plate. The novel mouse repeller is of an integrated structure and has a remarkable mouse repelling effect; meanwhile, the adopted detachable and cleanable electrode plate is high in power and can be reused after being detached and cleaned, so that a powerful negative ion emitting effect is maintained, and the use cost is obviously reduced.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: April 21, 2020
    Assignee: Handle Tech (SZ) Co., Ltd.
    Inventor: Yu-Chen Liu
  • Patent number: D907073
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: January 5, 2021
    Assignee: Handle Tech (SZ) Co., Ltd.
    Inventor: Yu-Chen Liu