Patents by Inventor Defa Wu

Defa Wu 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: 11719595
    Abstract: The disclosure discloses a testing device and a testing system for testing high-pressure and large-scale gap dynamic sealing performance of a plunger sleeve. The testing device includes two cylinders, first and second plunger rods and a piston rod. A first chamber is formed between an end of the first plunger rod and a first cylinder, and a second chamber is formed between an end of the second plunger rod and a second cylinder. The first chamber and the second chamber are provided with high-pressure liquid, and the two chambers communicate with each other. When being driven by a driving device, the piston rod drives the first and second plunger rods to reciprocate left and right. The plunger sleeve and a locking plunger sleeve are disposed outside each of the first and second plunger rods. The locking plunger sleeve has a leakage port. When the first and second plunger rods reciprocate, the high-pressure liquid in the chambers leaks from the leakage port.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: August 8, 2023
    Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Yinshui Liu, Shendan Zhao, Defa Wu, Hao Pang, Yipan Deng
  • Publication number: 20220170811
    Abstract: The disclosure discloses a testing device and a testing system for high-pressure and large-scale gap dynamic sealing performance. The testing device includes a cylinder, first and second plunger rods and a piston rod. A first chamber is formed between an end of the first plunger rod and the cylinder, and a second chamber is formed between an end of the second plunger rod and the cylinder. The first chamber and the second chamber are provided with high-pressure liquid, and the two chambers communicate with each other. When being driven by a driving device, the piston rod drives the first and second plunger rods to reciprocate left and right. A plunger sleeve is disposed outside each of the first and second plunger rods. The plunger sleeve has a leakage port. When the first and second plunger rods reciprocate, the high-pressure liquid in the chambers leaks from the leakage port.
    Type: Application
    Filed: November 29, 2021
    Publication date: June 2, 2022
    Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Yinshui Liu, Shendan Zhao, Defa Wu, Hao Pang, Yipan Deng
  • Patent number: 10683939
    Abstract: An ocean depth automatic compensation type full-ocean-depth hydraulic control water stop valve includes a valve body having an inlet and outlet on a side thereof; a valve sleeve assembly embedded in the valve body; and a valve core assembly. The valve sleeve assembly includes a spring cover; a pressure rod valve sleeve; a valve core cover; a valve seat; a pressing piece; a push rod valve sleeve base body; and a screw plug. The valve core assembly includes a pressure rod; a valve core; and a push rod.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: June 16, 2020
    Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Defa Wu, Chao Li, Yinshui Liu, Qian Cheng, Zhenyao Wang, Guang Luo, Yipan Deng, Hao Pang, Xiaomin Zhai
  • Patent number: 10613652
    Abstract: A touch display apparatus is disclosed. The touch display apparatus includes an electrophoretic structure, a protective layer and at least one touch sensing layer. The protective layer is disposed on the electrophoretic structure. The touch sensing layer is disposed on the protective layer and takes the protective layer as a carrier.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: April 7, 2020
    Assignee: TPK Touch Solutions (Xiamen) Inc.
    Inventors: Yau-Chen Jiang, Defa Wu, Jianbin Yan, Jinhai Zhang
  • Patent number: 10001849
    Abstract: A touch panel comprises a substrate, a first mask structure and a dense structure. The first mask structure is disposed on a surface of the substrate and divides the substrate into a mask area and a visible area disposed adjacent to the mask area. The first mask structure is disposed in the mask area. The dense structure at least masks a surface of the first mask structure farther from the substrate.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: June 19, 2018
    Assignee: TPK Touch Solutions (Xiamen) Inc.
    Inventors: Yau-Chen Jiang, Bin Lai, Defa Wu, Jianbin Yan, Liangzhen Xu, Yu Zhang
  • Patent number: 9971430
    Abstract: A touch panel comprises a sensing area, a periphery area, a plurality of wires and a plurality of bonding pads. The periphery area is disposed around the sensing area. The periphery area comprises a bonding area. The wires are disposed in the periphery area. The bonding pads are disposed in the bonding area and electrical connected to the wires correspondingly. Each of the bonding pads comprises at least a bending portion.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: May 15, 2018
    Assignees: TPK Touch Systems (XIAMEN) Inc, TPK Touch Solutions (Xiamen) Inc
    Inventors: Pu-Hsin Chang, Jui-Hsing Li, Fucheng Chen, Manyi Lin, Pudi Hong, Tsai-Kuai Wei, Xiaoxin Bai, Caijin Ye, Defa Wu
  • Patent number: 9874958
    Abstract: For a touch panel module, a first sensing unit is disposed on a viewing area of a substrate and includes a first electrode, a second sensing unit corresponds in position to a non-viewing area of the substrate and includes a first sub-electrode, an attaching portion corresponds in position to the non-viewing area and includes a first contact, and a first conducting wire, two ends of which are respectively connected to the first electrode and the first contact to form an electrical connection therebetween, and a connecting portion corresponds in position to the non-viewing area and includes a first conducting sub-wire for forming electrical connection between the first electrode and the first sub-electrode.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: January 23, 2018
    Assignee: TPK Touch Solutions (Xiamen) Inc.
    Inventors: Yau-Chen Jiang, Yanjun Xie, Bin Lai, Defa Wu, Yanping Lai
  • Patent number: 9557867
    Abstract: A touch panel includes a plurality of first electrodes arranged along a first direction and parallel to each other, wherein each first electrode includes a plurality of first electrode blocks and a plurality of first connection traces. A plurality of second electrodes arranged along a second direction and parallel to each other, wherein each second electrode includes a plurality of second electrode blocks and a plurality of second connection traces. And a plurality of insulating blocks, wherein each insulating block includes a main portion and at least one extending portion, the main portion is disposed between each first connection trace and each second connection trace, the extending portion extends from the main portion to the space between the first electrode block and the second electrode block. The present invention further provides a method for forming the touch panel mentioned above.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: January 31, 2017
    Assignee: TPK Touch Solutions (XIAMEN) Inc.
    Inventors: Ho-Hsun Chi, Yau-Chen Jiang, Defa Wu, Bin Lai
  • Patent number: 9483145
    Abstract: The present disclosure relates to a touch technology and more particularly, to a touch panel and a manufacturing method thereof. The touch panel comprises a plurality of first sensing electrode axes, a plurality of second sensing electrode axes, and a plurality of conductive wire axes. The first sensing electrode axes are disposed along a first axis. The second sensing electrode axes are disposed along a second axis and electrically insulated from the first sensing electrode axes. The plurality of conductive wire axes are disposed along the second axis and extended to the first peripheral area. Any two of the conductive wire axes are electrically connected to different first sensing electrode axes. According to the touch panel and the manufacturing method provided in the present disclosure, areas of the available touch area and a visible area on the touch panel can be effectively increased.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: November 1, 2016
    Assignee: TPK Touch Solutions (Xiamen) Inc.
    Inventors: Yau-Chen Jiang, Defa Wu, Yanjun Xie, Jianbin Yan
  • Patent number: 9442589
    Abstract: A touch panel having a display region and a periphery region is disclosed, wherein the touch panel comprises a cover substrate, a patterned mask layer formed on the cover substrate and the patterned mask layer includes a pattern region. The periphery region is defined by the patterned mask layer. A first electrode pattern having a plurality of first jumpers is disposed on the cover substrate and correspondingly to the display region, and a second electrode pattern having a plurality of second jumpers is disposed on the patterned mask layer and correspondingly to the pattern region, wherein the first jumpers and the second jumpers comprise different materials.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: September 13, 2016
    Assignee: TPK Touch Solutions (Xiamen) Inc.
    Inventors: Yau-Chen Jiang, Jianbin Yan, Ho-Hsun Chi, Defa Wu
  • Publication number: 20160246419
    Abstract: A touch display apparatus is disclosed. The touch display apparatus includes an electrophoretic structure, a protective layer and at least one touch sensing layer. The protective layer is disposed on the electrophoretic structure. The touch sensing layer is disposed on the protective layer and takes the protective layer as a carrier.
    Type: Application
    Filed: February 23, 2016
    Publication date: August 25, 2016
    Inventors: Yau-Chen Jiang, Defa Wu, Jianbin Yan, Jinhai Zhang
  • Patent number: 9405329
    Abstract: Provided is a cover structure used for a touch panel, including: a substrate and a masking layer buried in the substrate. The region where the masking layer is located defines a non-visible region of the touch panel. In addition, a method for fabricating the cover structure and a touch panel including the cover structure are also provided.
    Type: Grant
    Filed: September 2, 2013
    Date of Patent: August 2, 2016
    Assignee: TPK Touch Solutions (Xiamen) Inc.
    Inventors: Yau-Chen Jiang, Jianbin Yan, Defa Wu, Feng Chen
  • Patent number: 9395401
    Abstract: An electrical connection assembly is disclosed. The electrical connection assembly includes a first circuit board and a second circuit board. The first circuit board has a plurality of first signal electrodes and at least one first test electrode, wherein the first signal electrodes and the first test electrode are arranged in a spaced manner on the same side of the first circuit board. The second circuit board has a plurality of second signal electrodes and at least one second test electrode, wherein the second signal electrodes and the second test electrode are arranged in a spaced manner on the same side of the second circuit board, wherein the first signal electrodes are electrically connected to the second signal electrodes and the first test electrode is electrically connected to the second test electrode to form a testing loop.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: July 19, 2016
    Assignee: TPK Touch Solutions (Xiamen) Inc.
    Inventors: Yau-Chen Jiang, Defa Wu, Jianbin Yan, Shaoting Lin, Tsai-Kuei Wei, Xiaoxin Bai, Caijin Ye
  • Publication number: 20160154527
    Abstract: A touch panel comprises a substrate, a first mask structure and a dense structure. The first mask structure is disposed on a surface of the substrate and divides the substrate into a mask area and a visible area disposed adjacent to the mask area. The first mask structure is disposed in the mask area. The dense structure at least masks a surface of the first mask structure farther from the substrate.
    Type: Application
    Filed: November 19, 2015
    Publication date: June 2, 2016
    Inventors: Yau-Chen Jiang, Bin Lai, Defa Wu, Jianbin Yan, Liangzhen Xu, Yu Zhang
  • Patent number: 9335851
    Abstract: The present disclosure provides a touch panel, including at least a plurality of first electrode axes, a plurality of second electrode blocks. Each first electrode axis and corresponding second electrode block are disposed at the same level, staggered and electrically isolated from each other. Each first electrode axis is an uninterrupted structure. The touch panel of the present disclosure provides a new electrode pattern, and since all electrodes are disposed at the same level, therefore the electrodes can be formed simultaneously, thereby decreasing the cost of manufacturing process.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: May 10, 2016
    Assignee: TPK Touch Solutios (Xiamen) Inc.
    Inventors: Yau-Chen Jiang, Defa Wu, Jianbin Yan
  • Publication number: 20160054836
    Abstract: A touch panel comprises a substrate, a wire structure, a sensing electrode structure comprised first sensing arrays and second sensor arrays defining a touch region, and a first connecting component located in a non-touch region. The wire structure is disposed in the non-touch region and electrically coupled with the sensing electrode structure and the first connecting component. The wire structure comprises first signal wires, second signal wires and an insulation component, wherein each of the first signal wires is either on one side of the second sensing arrays and disposed between the substrate and the insulation component, or is disposed correspondingly on the insulation component. By separating the wire structure into an upper layer and a lower layer, the width of the wire structure and hence that of the frame are reduced in the touch panel.
    Type: Application
    Filed: August 21, 2015
    Publication date: February 25, 2016
    Inventors: Defa Wu, Yanjun Xie, Yau-Chen Jiang, Jianbin Yan, Yanping Lai, Kwan-Sin Ho, Renyuan Yan, Wenguang Wang, Junping Yang, Tsai-Kuei Wei, Xiaoxin Bai, Caijin Ye
  • Patent number: 9218078
    Abstract: A touch panel includes an insulating layer, a first axis electrode, and a second axis electrode. The insulating layer has first holes and second holes. The first axis electrode include first upper conductive units disposed on an upper side of the insulating layer and first lower conductive units disposed on a lower side of the insulating layer. Each first hole partially exposes the corresponding first lower conductive unit. The first upper conductive units are electrically connected to the first lower conductive units via the first holes. The second axis electrode includes second upper conductive units disposed on the upper side of the insulating layer and second lower conductive units disposed on the lower side of the insulating layer. Each the second holes partially exposes the corresponding second lower conductive unit. The second upper conductive units are electrically connected to the second lower conductive units via the second holes.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: December 22, 2015
    Assignee: TPK Touch Solutions (Xiamen) Inc.
    Inventors: Yau-Chen Jiang, Defa Wu, Jianbin Yan
  • Patent number: 9204529
    Abstract: The present disclosure discloses a bonding structure, wherein a plurality of first bonding pads is located on a first substrate. A second substrate is disposed to partially face first substrate. A plurality of second bonding pads is located on second substrate with one side, and partially overlapped with the first bonding pads with the other side to form a bonding region and a peripheral region located in the periphery of the bonding region. An anisotropic conductive film is disposed between first bonding pads and second bonding pads. The anisotropic conductive film includes a plurality of conductive particles. At least one groove structure is disposed in the periphery region. When the conductive particles of the anisotropic conductive film are moving during the bonding process, the groove structure can accommodate the conductive particles moved hereto. Accordingly, short circuit caused by accumulation of the conductive particles in the bonding process can be avoided.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: December 1, 2015
    Assignee: TPK Touch Solutions (Xiamen) Inc.
    Inventors: Huilin Ye, Jing Yu, Hua Luo, Zongke Chiu, Yau-Chen Jiang, Jianbin Yan, Defa Wu
  • Publication number: 20150277642
    Abstract: For a touch panel module, a first sensing unit is disposed on a viewing area of a substrate and includes a first electrode, a second sensing unit corresponds in position to a non-viewing area of the substrate and includes a first sub-electrode, an attaching portion corresponds in position to the non-viewing area and includes a first contact, and a first conducting wire, two ends of which are respectively connected to the first electrode and the first contact to form an electrical connection therebetween, and a connecting portion corresponds in position to the non-viewing area and includes a first conducting sub-wire for forming electrical connection between the first electrode and the first sub-electrode.
    Type: Application
    Filed: March 25, 2015
    Publication date: October 1, 2015
    Inventors: Yau-Chen Jiang, Yanjun Xie, Bin Lai, Defa Wu, Yanping Lai
  • Publication number: 20150253888
    Abstract: A touch panel comprises a sensing area, a periphery area, a plurality of wires and a plurality of bonding pads. The periphery area is disposed around the sensing area. The periphery area comprises a bonding area. The wires are disposed in the periphery area. The bonding pads are disposed in the bonding area and electrical connected to the wires correspondingly. Each of the bonding pads comprises at least a bending portion.
    Type: Application
    Filed: March 2, 2015
    Publication date: September 10, 2015
    Inventors: Pu-Hsin Chang, Jui-Hsing Li, Fucheng Chen, Manyi Lin, Pudi Hong, Tsai-Kuai Wei, Xiaoxin Bai, Caijin Ye, Defa Wu