Patents by Inventor Chun-Chieh Chang

Chun-Chieh Chang 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).

  • Publication number: 20170170667
    Abstract: A power supply system using an energy storage cell includes at least one lithium cell module; a voltage balance device, received and built in the lithium cell module, for performing voltage balance; and a cell module voltage monitoring device, disposed between a load and the lithium cell module, for monitoring and controlling working voltage ranges of all the lithium cell modules. The voltage balance device built in each lithium cell module performs charging correction on a lithium cell unit in which a capacitance difference is caused by a fabrication process or caused subsequently, to prevent overcharge damage of the lithium cell unit caused by the capacitance difference. The cell module voltage monitoring device is provided on an external line, and only a correct total charge voltage needs to be provided to charge the lithium cell module.
    Type: Application
    Filed: July 1, 2015
    Publication date: June 15, 2017
    Inventors: Tsun-Yu CHANG, Chun-Chieh CHANG
  • Publication number: 20170149029
    Abstract: A package structure of a soft package lithium battery is provided. Two joining sheets that are correspondingly joined are provided at positions at which peripheries of covering films are press-fit on each tab. Each of the joining sheets has a first press-fit area and a second press-fit area. Joining surfaces of the first press-fit areas of the two joining sheets are correspondingly joined to each other and fixedly sandwich the tab therebetween. The second press-fit area is folded downward away from the tab to the first press-fit area, and the second press-fit areas are press-fit and fixed to the covering films. The concave surface formed by folding between the first press-fit area and the second press-fit area of each of the joining sheets alleviates the problem that hot gases generated during battery discharging exerts an upward force to generate a gap at the press-fit position and lead to electrolyte leakage, thereby prolonging the service life of the battery.
    Type: Application
    Filed: April 23, 2015
    Publication date: May 25, 2017
    Inventors: Tsun-Yu CHANG, Chun-Chieh CHANG
  • Publication number: 20170149041
    Abstract: A lithium battery cell structure is provided. A first-electrode conduction portion and a second-electrode conduction portion that are exposed outward are respectively provided on two sides of a soft package lithium battery inside the metal housing. The first-electrode conduction portions are respectively electrically connected and fixed to a first-electrode conductive sheet, and the first-electrode conductive sheet is electrically connected and fixed to a housing conductive sheet that is connected to the metal housing. The second-electrode conduction portions are respectively electrically connected and fixed to a second-electrode conductive sheet, and an other end of the second-electrode conductive sheet is electrically connected and fixed to the second electrode end.
    Type: Application
    Filed: April 23, 2015
    Publication date: May 25, 2017
    Inventors: Tsun-Yu CHANG, Chun-Chieh CHANG
  • Publication number: 20170125792
    Abstract: The disclosure describes an exemplary binding layer formed on Aluminum (Al) substrate that binds the substrate with a coated material. Additionally, an extended form of the binding layer is described. By making a solution containing Al-transition metal elements-P—O, the solution can be used in slurry making (the slurry contains active materials) in certain embodiments. The slurry can be coated on Al substrate followed by heat treatment to form a novel electrode. Alternatively, in certain embodiments, the solution containing Al-transition metal elements-P—O can be mixed with active material powder, after heat treatment, to form new powder particles bound by the binder.
    Type: Application
    Filed: May 10, 2016
    Publication date: May 4, 2017
    Inventors: CHUN-CHIEH CHANG, TSUN YU CHANG
  • Patent number: 9579682
    Abstract: In one embodiment, a method comprising causing motion of an enclosed container comprising substrate material and graphite material within the container; and coating surfaces of the substrate material with the graphite material responsive to the motion of the container, the coated surfaces comprising graphene or graphene layers.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: February 28, 2017
    Assignee: CHANGS ASCENDING ENTERPRISE CO., LTD
    Inventors: Chun-Chieh Chang, Tsun-Yu Chang
  • Publication number: 20160293949
    Abstract: Disclosed herein are certain embodiments of a novel chemical synthesis route for lithium ion battery applications. Accordingly, various embodiments are focused on the synthesis of a new active material using NMC (Lithium Nickel Manganese Cobalt Oxide) as the precursor for a phosphate material having a layered crystal structure. Partial phosphate generation in the layer structured material stabilizes the material while maintaining the large capacity nature of the layer structured material.
    Type: Application
    Filed: June 7, 2016
    Publication date: October 6, 2016
    Inventors: CHUN-CHIEH CHANG, TSUN YU CHANG
  • Patent number: 9444079
    Abstract: An electrode structure of a lithium battery is provided for electrically connecting a positive pole and a negative pole in a tank of the lithium battery to the external. The electrode structure includes a lid body and at least one electrode body made of sheet metal material. The electrode body has a wrapped portion disposed in the lid body, two ends of the wrapped portion form bent portions respectively, and a connection portion and an output portion extend respectively from the bent portions to protrude from a surface of the lid body. A conductive electrode structure of the lithium battery is formed by wrapping instead of direct penetrating, thus achieving a hermetic effect of conductive positions of the electrode.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: September 13, 2016
    Assignee: CHANGS ASCENDING ENTERPRISE CO., LTD.
    Inventors: Tsun-Yu Chang, Chun-Chieh Chang, Ting-Keng Lin
  • Patent number: 9388045
    Abstract: Disclosed herein are certain embodiments of a novel chemical synthesis route for lithium ion battery applications. Accordingly, various embodiments are focused on the synthesis of a new active material using NMC (Lithium Nickel Manganese Cobalt Oxide) as the precursor for a phosphate material having a layered crystal structure. Partial phosphate generation in the layer structured material stabilizes the material while maintaining the large capacity nature of the layer structured material.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: July 12, 2016
    Assignee: CHANGS ASCENDING ENTERPRISE CO.
    Inventors: Chun-Chieh Chang, Tsun Yu Chang
  • Patent number: 9347997
    Abstract: In one embodiment, a method implemented by a processor, comprising receiving voltage values corresponding to a battery system, receiving charge values corresponding to charge flowing through the battery system, and determining a state of charge based on specified anchoring points of a charge integration, the anchoring points based on the received voltage and time.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: May 24, 2016
    Assignee: CHANGS ASCENDING ENTERPRISE CO., LTD.
    Inventors: Chun-Chieh Chang, Tsun Yu Chang
  • Patent number: 9343743
    Abstract: The disclosure describes an exemplary binding layer formed on Aluminum (Al) substrate that binds the substrate with a coated material. Additionally, an extended form of the binding layer is described. By making a solution containing Al-transition metal elements-P—O, the solution can be used in slurry making (the slurry contains active materials) in certain embodiments. The slurry can be coated on Al substrate followed by heat treatment to form a novel electrode. Alternatively, in certain embodiments, the solution containing Al-transition metal elements-P—O can be mixed with active material powder, after heat treatment, to form new powder particles bound by the binder.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: May 17, 2016
    Assignee: CHANGS ASCENDING ENTERPRISE CO., LTD.
    Inventors: Chun-Chieh Chang, Tsun Yu Chang
  • Publication number: 20160128163
    Abstract: A light emitting device driving circuit and a method thereof are provided. The light emitting device driving circuit includes a frequency detection circuit and a frequency adjustment circuit. The frequency detection circuit is configured to detect a light source frequency of a light emitting device to provide at least one detection frequency signal. The frequency adjustment circuit adjusts the light source frequency of the light emitting device according to the detection frequency signal and a plurality of preset flicker frequencies.
    Type: Application
    Filed: December 15, 2014
    Publication date: May 5, 2016
    Inventors: Chun-Chieh Chang, Yueh-Feng Lin, Yu-Ta Lin
  • Publication number: 20160099184
    Abstract: A method of estimating the capability of a semiconductor manufacturing system is provided. Plural first transistors are formed and a first VtMM value and a first scale value are obtained. Plural second transistors are formed and a second VtMM value and a second scale value are obtained. Plural third transistors are formed and a third VtMM value and a third scale value are obtained. A first channel length of the first transistor is smaller than a second channel length of the second transistor and is equal to a third channel length of the third transistor. A VtMM v.s. scale figure is established. A line is formed by linking the first dot and the third dot and a vertical Gap between the line and the second dot is measured. The capability of the semiconductor system is determined based on the vertical Gap. The invention further provides a chip.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 7, 2016
    Inventors: Wei-Chi Lee, Yu-Lin Wang, Chun-Chieh Chang, Tzu-Feng Chang, Po-Peng Lin
  • Patent number: 9297861
    Abstract: In one embodiment, a battery control system, comprising: a plurality of battery units comprising a battery system; and a controller coupled to the plurality of battery units, the controller configured to monitor, for each battery unit, a first voltage and a second voltage, the first voltage corresponding to an absolute value of a shut-off voltage and a second voltage corresponding to a warning voltage, the first voltage smaller than the second voltage, wherein responsive to one of the battery units reaching the second voltage, the controller is configured to provide a first alert before the any of the battery units reaches the first voltage.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: March 29, 2016
    Assignee: CHANGS ASCENDING ENTERPRISE CO., LTD.
    Inventors: Chun Chieh Chang, Tsun Yu Chang
  • Patent number: 9213484
    Abstract: A method for detecting a single-finger rotation gesture and a gesture detecting circuit thereof are provided. The gesture detecting circuit comprises a quadrant dividing unit, a register, a control unit, a comparing unit, and an outputting unit. The quadrant dividing unit, according to the center point, divides a touch panel into at least three quadrants and sets a plurality of data codes respectively corresponding to the quadrants. Within a predetermined time, the control unit controls the register to sequentially record the data codes respectively corresponding to the touched quadrants. When the predetermined time is reached, the comparing unit compares to judge whether the temporary data buffered in the register is the same with the default data. If the temporary data is the same with the default data, then the outputting unit outputs a rotation gesture signal.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: December 15, 2015
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Hui-Hung Chang, Chun-Chieh Chang, Chih-Chang Lai
  • Patent number: 9209448
    Abstract: A conductive connection structure for secondary batteries employs conductive portions disposed under two lateral sides of a cover plate to conductively connect to at least one battery cell. The conductive portions disposed under the two lateral sides of the cover plate are bendable, and the conductive portions are bent toward outer sides of the cover plate, so that the conductive portions are disposed horizontally; a connecting portion is extended upward respectively from an anode and a cathode terminals on two lateral sides of each of the battery cells, and the connecting portions and the conductive portions are electrically connected. By modifying the design of the connection structure of the battery cells and the two conductive portions under the cover plate, a time for soldering the battery cells and the conductive portions for conductive connection is reduced, the connection is tighter and more reliable and manpower cost is reduced.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: December 8, 2015
    Assignee: Changs Ascending Enterprise Co., Ltd.
    Inventors: Tsun-Yu Chang, Chun-Chieh Chang, Ting-Keng Lin
  • Publication number: 20150325845
    Abstract: An exemplary embodiment of a synthesis method includes the following acts or steps: providing LiMn2O4 material as a precursor; leaching Mn from the LiMn2O4 material using an acid to form a synthesized solution; adding carbonaceous material to the synthesized solution; adding phosphoric acid to the synthesized solution with carbonaceous material to form MnPO4 composite material; and adding Li containing compound to the MnPO4 composite material to form LiMnPO4 composite material.
    Type: Application
    Filed: July 16, 2015
    Publication date: November 12, 2015
    Inventors: Chun-Chieh Chang, Tsun Yu Chang
  • Patent number: 9184605
    Abstract: In one embodiment, a battery management system comprising a first circuit comprising a first plurality of circuit elements arranged in series, the first plurality of circuit elements comprising: a direct current (DC) voltage source, and first plural switching devices, each of the first plural switching devices connected to, and operably switched by, a first detection device associated with a battery module to cause a voltage difference responsive to detection of an event corresponding to operation of the battery module.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: November 10, 2015
    Assignee: CHANGS ASCENDING ENTERPRISE CO., LTD.
    Inventors: Tsun Yu Chang, Chun-Chieh Chang
  • Publication number: 20150283573
    Abstract: In one embodiment, a method comprising causing motion of an enclosed container comprising substrate material and graphite material within the container; and coating surfaces of the substrate material with the graphite material responsive to the motion of the container, the coated surfaces comprising graphene or graphene layers.
    Type: Application
    Filed: June 19, 2015
    Publication date: October 8, 2015
    Inventors: Chun-Chieh Chang, Tsun-Yu Chang
  • Patent number: 9105919
    Abstract: An exemplary embodiment of a synthesis method includes the following acts or steps: providing LiMn2O4 material as a precursor; leaching Mn from the LiMn2O4 material using an acid to form a synthesized solution; adding carbonaceous material to the synthesized solution; adding phosphoric acid to the synthesized solution with carbonaceous material to form MnPO4 composite material; and adding Li containing compound to the MnPO4 composite material to form LiMnPO4 composite material.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: August 11, 2015
    Assignee: CHANGS ASCENDING ENTERPRISE CO., LTD.
    Inventors: Chun-Chieh Chang, Tsun Yu Chang
  • Patent number: 9090476
    Abstract: In one embodiment, a method comprising causing motion of an enclosed container comprising substrate material and graphite material within the container; and coating surfaces of the substrate material with the graphite material responsive to the motion of the container, the coated surfaces comprising graphene or graphene layers.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: July 28, 2015
    Inventors: Chun-Chieh Chang, Tsun-Yu Chang