Patents by Inventor Tu Zhang

Tu Zhang 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: 11910540
    Abstract: Embodiments and fabrication methods for a printed circuit board comprising two or more electrically conductive layers, including at least a first conductive layer opposing and adjacent to a second conductive layer. Also including one or more electrically non-conductive layers including at least a first non-conductive layer disposed between the first conductive layer and the second conductive layer. A first copper pad is included on the first conductive layer. A second copper pad is included on the second conductive layer. There is a conductive via extending through the first non-conductive layer and electrically connecting the first copper pad to the second copper pad and solder mask material on the first copper pad around the via.
    Type: Grant
    Filed: August 15, 2022
    Date of Patent: February 20, 2024
    Inventors: Pui Yin Yu, Hong Tu Zhang
  • Publication number: 20230328896
    Abstract: Embodiments and fabrication methods for a printed circuit board comprising two or more electrically conductive layers, including at least a first conductive layer opposing and adjacent to a second conductive layer. Also including one or more electrically non-conductive layers including at least a first non-conductive layer disposed between the first conductive layer and the second conductive layer. A first copper pad is included on the first conductive layer. A second copper pad is included on the second conductive layer. There is a conductive via extending through the first non-conductive layer and electrically connecting the first copper pad to the second copper pad and solder mask material on the first copper pad around the via.
    Type: Application
    Filed: August 15, 2022
    Publication date: October 12, 2023
    Inventors: Pui Yin YU, Hong Tu ZHANG
  • Patent number: 11317521
    Abstract: A printed circuit board includes a first and second core. The first core has a first conductive layer, a first non-conductive layer, a first copper layer and a first opening. The first core also has a first solder mask connected to the first copper layer and a first FR4 laminate bonded to the first solder mask. The second core has a second conductive layer, a second non-conductive layer, a second copper layer and a second opening. The second core also has a second solder mask connected to the second copper layer and a second FR4 laminate bonded to the second solder mask. A prepreg layer is between the first copper layer and the second copper layer but not between the first FR4 laminate and the second FR4 laminate.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: April 26, 2022
    Inventors: Pui Yin Yu, Hong Tu Zhang, Xin Hua Zeng
  • Publication number: 20210385952
    Abstract: A printed circuit board includes a first and second core. The first core has a first conductive layer, a first non-conductive layer, a first copper layer and a first opening. The first core also has a first solder mask connected to the first copper layer and a first FR4 laminate bonded to the first solder mask. The second core has a second conductive layer, a second non-conductive layer, a second copper layer and a second opening. The second core also has a second solder mask connected to the second copper layer and a second FR4 laminate bonded to the second solder mask. A prepreg layer is between the first copper layer and the second copper layer but not between the first FR4 laminate and the second FR4 laminate.
    Type: Application
    Filed: July 1, 2020
    Publication date: December 9, 2021
    Inventors: Pui Yin Yu, Hong Tu Zhang, Xin Hua Zeng
  • Patent number: 11122674
    Abstract: A printed circuit board includes a first, second, and third conductive layer. The printed circuit boards also includes a first non-conductive layer between the first and second conductive layers and a second non-conductive layer between the second and third conductive layers. The printed circuit board further includes a dielectric layer between the second conductive layer and the second non-conductive layer and a coin for heat dispersion located underneath the dielectric layer. The printed circuit board also includes a cavity for receiving a component and a plating within the cavity to connect the coin with the second conductive layer. The plating extends less than 50 um above the second conductive layer.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: September 14, 2021
    Inventors: Pui Yin Yu, Xin Hua Zeng, Jian Ying Xue, Hong Tu Zhang
  • Patent number: 8517779
    Abstract: An electrical terminal has a soldering plate, a propping plate extending upward and rearward from a front end of the soldering plate, a resilient arm bending upward and then extending forward from a rear end of the soldering plate, and a pressing portion of inverted-V shape connected with a front end of the resilient arm and defining a mouth between a front arm and a rear arm thereof. A top end of the propping plate bends forward and downward to form a lower hook tail stretched in the mouth, resisting against an inner side of the front arm, and apart from an inner turning of the pressing portion. A bottom end of the front arm bends rearward and upward to form an upper hook tail hooking the lower hook tail with a free end thereof resisting against an outer side of the propping plate.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: August 27, 2013
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Hong Tu Zhang, Ping-Chih Chen, Ming-Chiang Chen
  • Publication number: 20130178116
    Abstract: An electrical terminal has a soldering plate, a propping plate extending upward and rearward from a front end of the soldering plate, a resilient arm bending upward and then extending forward from a rear end of the soldering plate, and a pressing portion of inverted-V shape connected with a front end of the resilient arm and defining a mouth between a front arm and a rear arm thereof. A top end of the propping plate bends forward and downward to form a lower hook tail stretched in the mouth, resisting against an inner side of the front arm, and apart from an inner turning of the pressing portion. A bottom end of the front arm bends rearward and upward to form an upper hook tail hooking the lower hook tail with a free end thereof resisting against an outer side of the propping plate.
    Type: Application
    Filed: January 6, 2012
    Publication date: July 11, 2013
    Applicant: Cheng Uei Precision Industry Co., LTD.
    Inventors: Hong Tu ZHANG, Ping-Chih CHEN, Ming-Chiang CHEN
  • Publication number: 20130057974
    Abstract: A lens module socket includes an insulating housing, a plurality of conductive terminals, an inner shielding shell and an outer shielding shell. The insulating housing has an accommodating space therein for receiving the lens module and a plurality of buckling grooves distributed at outsides of corresponding side walls thereof. The conductive terminals are assembled in the insulating housing. The inner shielding shell surrounds the insulating housing, and has a plurality of side plates which define a plurality of through-holes corresponding to the respective buckling grooves. The outer shielding shell covered on the insulating housing includes a top plate and a plurality of lateral plates extending downward from a periphery of the top plate and defining a plurality of openings. A buckling arm is extended upward and bent inward from a bottom of each opening to be buckled in the corresponding buckling groove through the through-hole.
    Type: Application
    Filed: September 7, 2011
    Publication date: March 7, 2013
    Applicant: Cheng Uei Precision Industry Co., LTD.
    Inventors: HONG-TU ZHANG, Ai-Gong Chi, Ping-Chih Chen, Ming-Chiang Chen
  • Patent number: 8282400
    Abstract: An electronic connector includes an insulating case, a metal plate and a contact module. The insulating case includes a top surface, a bottom surface, a receiving space defined therein, and a plurality of grooves defined at the top surface. The metal plate is retained in the receiving space and attached to the bottom surface of the insulating case. The contact module is retained in the receiving space, which includes an insulating housing, a plurality of contacts and a ground terminal. Each contact includes a first connecting portion extended above the top surface and aligned with the corresponding groove of the insulating case. The ground terminal includes a second connecting portion and a contacting portion. The second connecting portion is extended above the top surface and aligned with the corresponding groove of the insulating case. The contacting portion is connected to the metal plate.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: October 9, 2012
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Ou Yang, Ping-Chih Chen, Hong-Tu Zhang, Ming-Chiang Chen
  • Patent number: 8246379
    Abstract: A battery connector includes an insulating body having a base board and a fastening tongue protruding upward and then extending forward from a rear of the base board, and an electrical terminal which has a base plate, two elastic arms parallel and apart located over the base plate by means of two rear ends thereof curvedly connected with a rear edge of the base plate respectively, and two contact arms oppositely extending outward from two front ends of the elastic arms. The base plate is inserted rearward to be clipped between the fastening tongue and the base board, and the elastic arms are located at two opposite sides of the fastening tongue. The contact arms can be respectively connected with the positive electrode of one of two batteries and the negative electrode of the other battery to realize a series connection between the two batteries.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: August 21, 2012
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Hong-Tu Zhang, Ping-Chih Chen, Ming-Chiang Chen
  • Publication number: 20120164855
    Abstract: A connector terminal curved from a strip-shaped metal plate has a soldering plate of which a substantial middle of one end edge extends upward to form a bracket plate, an arched connecting portion bent upward from the other end of the soldering plate and apart facing the bracket plate, and a flexible arm extending from a free end of the connecting portion towards the bracket plate and parallel to the soldering plate. Two opposite side edges of a top end of the bracket plate oppositely protrude to form a pair of blocking ears. A free end of the flexible arm is arched upward to form an inverted-V shaped contacting portion adjacent to the bracket plate. Two ends of a distal edge of the contacting portion further extend beyond the two opposite side edges of the bracket plate to form a pair of resisting tails respectively restrained under the blocking ears.
    Type: Application
    Filed: December 28, 2010
    Publication date: June 28, 2012
    Applicant: Cheng Uei Precision Industry Co., LTD.
    Inventors: HONG-TU ZHANG, PING-CHIH CHEN, MING-CHIANG CHEN
  • Patent number: 8206188
    Abstract: A connector terminal curved from a strip-shaped metal plate has a soldering plate of which a substantial middle of one end edge extends upward to form a bracket plate, an arched connecting portion bent upward from the other end of the soldering plate and apart facing the bracket plate, and a flexible arm extending from a free end of the connecting portion towards the bracket plate and parallel to the soldering plate. Two opposite side edges of a top end of the bracket plate oppositely protrude to form a pair of blocking ears. A free end of the flexible arm is arched upward to form an inverted-V shaped contacting portion adjacent to the bracket plate. Two ends of a distal edge of the contacting portion further extend beyond the two opposite side edges of the bracket plate to form a pair of resisting tails respectively restrained under the blocking ears.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: June 26, 2012
    Assignee: Cheng UEI Precision Industry Co., Ltd.
    Inventors: Hong-Tu Zhang, Ping-Chih Chen, Ming-Chiang Chen
  • Publication number: 20120122322
    Abstract: An electronic connector includes an insulating case, a metal plate and a contact module. The insulating case includes a top surface, a bottom surface, a receiving space defined therein, and a plurality of grooves defined at the top surface. The metal plate is retained in the receiving space and attached to the bottom surface of the insulating case. The contact module is retained in the receiving space, which includes an insulating housing, a plurality of contacts and a ground terminal. Each contact includes a first connecting portion extended above the top surface and aligned with the corresponding groove of the insulating case. The ground terminal includes a second connecting portion and a contacting portion. The second connecting portion is extended above the top surface and aligned with the corresponding groove of the insulating case. The contacting portion is connected to the metal plate.
    Type: Application
    Filed: November 16, 2010
    Publication date: May 17, 2012
    Applicant: Cheng Uei Precision Industry Co., LTD.
    Inventors: OU YANG, PING-CHIH CHEN, HONG-TU ZHANG, MING-CHIANG CHEN
  • Patent number: 8047877
    Abstract: A USB (Universal Serial Bus) connector includes an insulating body which has a base portion, an inserting portion, and a pair of clipping walls and defines a receiving space therebetween. A plurality of signal terminals is assembled to the insulating body. Each of the signal terminals has a connecting arm disposed in the inserting portion and a signal contacting arm hanging out of the receiving space. A fixing body is mounted in the receiving space and clipped between the clipping walls. The signal contacting arms are restrained under the fixing body and further stretching behind the fixing body. A ground terminal has a fixing slice fixed in the fixing body, a resilient arm stretching out of the fixing body to be located above the inserting portion and a ground contacting arm restrained under the fixing body and further stretched behind the fixing body to be aligned with the signal contacting arms.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: November 1, 2011
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Fei Liu, Ou Yang, Hong-Tu Zhang, Ping-Chih Chen, Ming-Chiang Chen
  • Patent number: D648280
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: November 8, 2011
    Assignee: Cheng UEI Precision Industry Co., Ltd.
    Inventors: Hong-Tu Zhang, Ping-Chih Chen, Ming-Chiang Chen
  • Patent number: D660248
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: May 22, 2012
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Hong-Tu Zhang, Ping-Chih Chen, Ming-Chiang Chen
  • Patent number: D660249
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: May 22, 2012
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Ping-Chih Chen, Hong-Tu Zhang, Ming-Chiang Chen
  • Patent number: D663695
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: July 17, 2012
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Hong-Tu Zhang, Ai-Gong Chi, Ping-Chih Chen, Ming-Chiang Chen
  • Patent number: D671075
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: November 20, 2012
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Ou Yang, Hong-Tu Zhang, Ping-Chih Chen, Ming-Chiang Chen
  • Patent number: D671498
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: November 27, 2012
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Ou Yang, Hong-Tu Zhang, Ping-Chih Chen, Ming-Chiang Chen