Patents by Inventor Wei-Chen Chang

Wei-Chen 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: 20180220797
    Abstract: A slide rail mechanism includes a rail member, a supporting frame and a bracket. The supporting frame is movable relative to the rail member and the bracket. The bracket includes a side wall and at least one mounting member adjacent to the side wall. The at least one mounting member configured to pass through a mounting hole of a post. When the supporting frame is moved relative to the bracket from a first position to a second position, the supporting frame is configured to drive the at least one mounting member to move relative to the side wall.
    Type: Application
    Filed: June 1, 2017
    Publication date: August 9, 2018
    Inventors: Ken-Ching Chen, Shun-Ho Yang, Wei-Chen Chang, Chun-Chiang Wang
  • Publication number: 20180199712
    Abstract: A slide rail mechanism includes a supporting frame, a bracket, a fastening member and an elastic member. The bracket and the supporting frame are movable relative to each other. The bracket includes a longitudinal wall and at least one mounting member adjacent to the longitudinal wall. The fastening member is transversely movable relative to the bracket. The elastic member is configured to provide an elastic force to the fastening member. When the supporting frame is moved relative to the bracket from a first position to a second position, the supporting frame is configured to drive the fastening member to transversely move from a first operating position to a second operating position.
    Type: Application
    Filed: May 5, 2017
    Publication date: July 19, 2018
    Inventors: Ken-Ching Chen, Shun-Ho Yang, Wei-Chen Chang, Chun-Chiang Wang
  • Publication number: 20180199713
    Abstract: A slide rail mechanism includes a rail member, a first supporting frame, a second supporting frame, a bracket and a reinforcing member. The first supporting frame is movable relative to the rail member. The second supporting frame is movable relative to the first supporting member. The bracket and the second supporting frame are movable relative to each other. The reinforcing member is movable relative to the rail member in response to movement of the first supporting frame. Wherein, the rail member includes a first engaging structure, and the reinforcing member includes a second engaging structure. The reinforcing member is configured to be engaged with the first engaging structure through the second engaging structure.
    Type: Application
    Filed: June 18, 2017
    Publication date: July 19, 2018
    Inventors: Ken-Ching Chen, Shun-Ho Yang, Wei-Chen Chang, Chun-Chiang Wang
  • Publication number: 20180168349
    Abstract: A slide rail mechanism includes a rail member, a first supporting frame, a second supporting frame, a bracket and a reinforcing member. The first supporting frame is movable relative to the rail member. The second supporting frame is movable relative to the first supporting member. The bracket and the second supporting frame are movable relative to each other. The reinforcing member is configured to be detachably engaged with the first supporting frame. Wherein, the rail member includes a first engaging structure, and the reinforcing member includes a second engaging structure. The reinforcing member is configured to be engaged with the first engaging structure through the second engaging structure.
    Type: Application
    Filed: May 22, 2017
    Publication date: June 21, 2018
    Inventors: Ken-Ching Chen, Shun-Ho Yang, Wei-Chen Chang, Chun-Chiang Wang
  • Patent number: 9996699
    Abstract: The present disclosure provides a screen shielding method, applied to a display device of an electronic device, wherein the display device has a display region, and the electronic device is arranged to execute a plurality of applications. The screen shielding method includes determining whether a first predetermined input signal has been received when a first application of the plurality of applications has been executed in the foreground, and producing a privacy block in response to the first predetermined input signal for entering a privacy protect mode.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: June 12, 2018
    Assignee: Wistron Corp.
    Inventor: Wei Chen Chang
  • Publication number: 20180116398
    Abstract: A bracket device includes a bracket, a fastening member and a supporting frame. The bracket includes a side wall and at least one mounting member adjacent to the side wall. The fastening member is movably mounted to the bracket and includes a supporting leg. The supporting frame is movably mounted to the bracket and includes a supporting structure. When the supporting frame is moved relative to the bracket from one position to another position, the supporting structure of the supporting frame is configured to drive the fastening member to switch from a first state to a second state relative to the at least one mounting member through the supporting leg.
    Type: Application
    Filed: May 2, 2017
    Publication date: May 3, 2018
    Inventors: Ken-Ching Chen, Shun-Ho Yang, Wei-Chen Chang, Chun-Chiang Wang
  • Publication number: 20180092462
    Abstract: A slide rail assembly comprises a first rail, a second rail, a third rail and an engaging member. The first rail comprises a releasing feature. The second rail is movable relative to the first rail. The third rail is movable relative to the second rail. The engaging member is pivoted to the second rail. Wherein, the engaging member is configured to engage with the third rail to allow the second rail and the third rail to be synchronously moved relative to the first rail along a first direction, and the releasing feature is configured to disengage the engaging member from the third rail when the second rail is synchronously moved with the third rail relative to the first rail to a predetermined position.
    Type: Application
    Filed: March 31, 2017
    Publication date: April 5, 2018
    Inventors: Ken-Ching Chen, Shun-Ho Yang, Wei-Chen Chang, Chun-Chiang Wang
  • Publication number: 20170246723
    Abstract: Polishing systems and methods for polishing a substrate are provided. The method includes polishing a substrate using a polishing pad and monitoring a thickness of the polishing pad. The monitoring of the thickness of the polishing pad is performed by detecting an eddy current generated from a conductor element below a bottom surface of the polishing pad. The method also includes replacing the polishing pad with a second polishing pad if the thickness of the polishing pad is smaller than a predetermined value.
    Type: Application
    Filed: May 16, 2017
    Publication date: August 31, 2017
    Inventors: Jiun-Yu LAI, Ying-Hsiu TSAI, Wei-Chen CHANG, Yi-Ching CHIOU
  • Patent number: 9669514
    Abstract: Polishing systems and methods for polishing a substrate are provided. The polishing system includes a polishing assembly having a platen and a polishing pad over the platen. The polishing system also includes a substrate carrying assembly configured to engage a substrate to the polishing pad. The polishing system further includes a thickness sensing assembly configured to monitor a thickness of the polishing pad.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: June 6, 2017
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD
    Inventors: Jiun-Yu Lai, Ying-Hsiu Tsai, Wei-Chen Chang, Yi-Ching Chiou
  • Patent number: 9653173
    Abstract: A memory cell includes a coupling device, a read transistor, a first read selection transistor, a second read selection transistor, an erase device, a program transistor, and a program selection transistor. The coupling device is formed on a first doped region. The erase device is formed on a second doped region. The read transistor, the first read selection transistor, the second read selection transistor, the program transistor, and the program selection transistor are formed on a third doped region. A gate terminal of the coupling device is coupled to a common floating gate. A gate terminal of the erase device is coupled to the floating gate. During a program operation, electrical charges are moved from the common floating gate. During an erase operation, electrical charges are ejected from the common floating gate to the erase device.
    Type: Grant
    Filed: December 4, 2016
    Date of Patent: May 16, 2017
    Assignee: eMemory Technology Inc.
    Inventors: Chun-Yuan Lo, Wei-Chen Chang, Shih-Chen Wang
  • Publication number: 20170107382
    Abstract: An antioxidant conductive copper paste and a method for preparing the same are revealed. The antioxidant conductive copper paste includes conductive particles, a pasting agent, and a solvent. The conductive particles are copper nanoparticles or copper alloy nanoparticles. The pasting agent can be ethyl cellulose, Poly(3,4-ethylenedioxythiophene) (PEDOT), or epoxy. The solvent can be terpineol, ethylene glycol or diethylene glycol. The antioxidant conductive copper paste with features of high stability and low cost can be applied to produce electrodes of heterojunction solar cells.
    Type: Application
    Filed: November 27, 2015
    Publication date: April 20, 2017
    Inventors: WEI-CHEN CHANG, WEI-YANG MA, LI-WEI WENG, JUN-XIANG LIANG, CHENG-HUAN CHUNG, CHI-KAI CHUANG, TSUN-NENG YANG
  • Publication number: 20160346899
    Abstract: Polishing systems and methods for polishing a substrate are provided. The polishing system includes a polishing assembly having a platen and a polishing pad over the platen. The polishing system also includes a substrate carrying assembly configured to engage a substrate to the polishing pad. The polishing system further includes a thickness sensing assembly configured to monitor a thickness of the polishing pad.
    Type: Application
    Filed: May 29, 2015
    Publication date: December 1, 2016
    Inventors: Jiun-Yu LAI, Ying-Hsiu TSAI, Wei-Chen CHANG, Yi-Ching CHIOU
  • Patent number: 9466392
    Abstract: A memory array includes a first memory page and a second memory page. The first memory page includes a first word line, a first select gate line, a first control line, a first erase line, and a plurality of first memory cells each coupled to the first word line, the first select gate line, the first control line, and the first erase line, and for receiving a bit line signal and a source line signal. The second memory page includes a second control line, a second erase line, and a plurality of second memory cells each coupled to the first word line, the first select gate line, the second control line, and the second erase line, and for receiving a bit line signal and a source line signal.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: October 11, 2016
    Assignee: eMemory Technology Inc.
    Inventors: Wei-Chen Chang, Wen-Hao Ching, Chih-Hsin Chen, Shih-Chen Wang, Ching-Sung Yang
  • Publication number: 20160284890
    Abstract: The present relates to antioxidant conductive copper ink and the method for preparing the same. The antioxidant conductive copper ink comprises nanometer copper or copper-alloy particles, which are used as the conductive particle material, water-free alcohol, which is used as the solvent, tert-butanol and ultra-pure water, which is used as the pasting agent, and carboxylic acid, which is used as the dispersant. Alternatively, isopropanol is used as the pasting agent and glycol is used as the solvent for injecting processes. The antioxidant conductive copper ink disclosed in the present invention owns the properties of high stability and low cost, and hence is applicable to the applications of fabricating the electrodes of silicon-crystal solar cells and printable electronic materials such as PCB or RFID.
    Type: Application
    Filed: May 6, 2015
    Publication date: September 29, 2016
    Inventors: WEI-CHEN CHANG, WEI-YANG MA, GUAN-LIN CHEN, LI-WEI WENG, CHENG-HUAN CHUNG, TSUN-NENG YANG, CHENG-SI TSAO, YU-CHING HUANG
  • Publication number: 20160104537
    Abstract: A memory array includes a first memory page and a second memory page. The first memory page includes a first word line, a first select gate line, a first control line, a first erase line, and a plurality of first memory cells each coupled to the first word line, the first select gate line, the first control line, and the first erase line, and for receiving a bit line signal and a source line signal. The second memory page includes a second control line, a second erase line, and a plurality of second memory cells each coupled to the first word line, the first select gate line, the second control line, and the second erase line, and for receiving a bit line signal and a source line signal.
    Type: Application
    Filed: October 13, 2015
    Publication date: April 14, 2016
    Inventors: Wei-Chen Chang, Wen-Hao Ching, Chih-Hsin Chen, Shih-Chen Wang, Ching-Sung Yang
  • Publication number: 20150213280
    Abstract: The present disclosure provides a screen shielding method, applied to a display device of an electronic device, wherein the display device has a display region, and the electronic device is arranged to execute a plurality of applications. The screen shielding method includes determining whether a first predetermined input signal has been received when a first application of the plurality of applications has been executed in the foreground, and producing a privacy block in response to the first predetermined input signal for entering a privacy protect mode.
    Type: Application
    Filed: July 2, 2014
    Publication date: July 30, 2015
    Inventor: Wei Chen CHANG
  • Publication number: 20140009630
    Abstract: An automatic photographic device for a mobile device includes a sense module for generating a sense result according to a position change of the mobile device, a determination module for generating a control signal according to the sense result, and a photographic module for processing a photographic operation according to the control signal, wherein the automatic photographic device is located within a three-dimensional space including the X-axis, the Y-axis and the Z-axis perpendicular to each other and the position change comprises a rotational angle change, a rotational velocity change and a straight acceleration change.
    Type: Application
    Filed: November 27, 2012
    Publication date: January 9, 2014
    Applicant: WISTRON CORPORATION
    Inventor: Wei-Chen Chang
  • Patent number: 7334590
    Abstract: An anti-slip opening and closing device for an umbrella is described, which comprises a rope reeled on a roller positioned on a pole of the umbrella. The roller is screwed with a reel having a friction disc. The friction disc is set inside a notch of a ratchet wheel. An elastic accessory is positioned between the roller and the ratchet wheel for pushing the friction disc to lean against the ratchet wheel. A block part is disposed to resist the ratchet wheel reversing. A bearing positioned at a side of the reel leans against beads of a cap positioned on the pole. When the reel is rotated clockwise, the roller and the reel are screwed together, and the rope is reeled by the roller. Hence, the umbrella is opened due to the pull of the rope, and the roller is not reversed by the obstruction of the block part. On the other hand, the reel is backed from the roller by rotating counterclockwise and leans against the beads.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: February 26, 2008
    Inventor: Wei-Chen Chang
  • Publication number: 20070163632
    Abstract: An anti-slip opening and closing device for an umbrella is described, which comprises a rope reeled on a roller positioned on a pole of the umbrella. The roller is screwed with a reel having a friction disc. The friction disc is set inside a notch of a ratchet wheel. An elastic accessory is positioned between the roller and the ratchet wheel for pushing the friction disc to lean against the ratchet wheel. A block part is disposed to resist the ratchet wheel reversing. A bearing positioned at a side of the reel leans against beads of a cap positioned on the pole. When the reel is rotated clockwise, the roller and the reel are screwed together, and the rope is reeled by the roller. Hence, the umbrella is opened due to the pull of the rope, and the roller is not reversed by the obstruction of the block part. On the other hand, the reel is backed from the roller by rotating counterclockwise and leans against the beads.
    Type: Application
    Filed: January 17, 2006
    Publication date: July 19, 2007
    Inventor: Wei-Chen Chang
  • Patent number: 6732753
    Abstract: An umbrella frame has a hollow shaft, an upper runner disposed on the hollow shaft, a lower runner receiving the hollow shaft, a winding device inserted through the hollow shaft, a pulley disposed on the hollow shaft, and a thread connected to the pulley and the winding device. A plurality of ribs are connected to the upper runner. A plurality of stretchers are connected to the lower runner and the ribs. A handle engages with the winding device.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: May 11, 2004
    Inventor: Wei-Chen Chang